final study guide
frequent use
Globe valves operate efficiently in: very viscous fluid systems frequent use very viscous fluid systems and infrequent use infrequent use
suction vane tip
On a centrifugal compressor, the part of the impeller vane that comes into contact with the gas first is called the _______________. impeller shroud suction eye wear ring outlet suction vane tip
Energy cannot be created Energy can be altered in form
Select ONLY,, all the choices that describe the Law of Energy Conservation. Energy can be destroyed Energy can be created Energy cannot be created Energy can be altered in form
From the hot fluid, across the wall, to the cold fluid
Select that choice that best describes how heat is transferred between two fluids separated by a solid wall. From the hot fluid to the wall only From the cold fluid to the wall only From the cold fluid, across the wall, to the hot fluid From the hot fluid, across the wall, to the cold fluid
True
T/F Fin fans and cooling towers do the same thing.
False
T/F Shaft seals are located at the ends of each casing to minimize outward leakage of steam under pressure and enhance inward air leakage.
Body
The [___] in a gate valve represents the largest part of the valve.
downcomer
The area of the tower that allow liquid to flow down the tower to the tray below is called the [_____].
Thrust bearing
The bearing that keeps the shaft from moving horizontally is called the _______________.
bridge wall markings
The body of the valve contains information referred to as: valve etchings bridge wall plate bridge wall markings manufacturers specifications
impeller
The centrifugal pump develops a high liquid velocity using a(n)________________ . gear piston impeller propeller
centrifugal
An example of a dynamic pump is a ________ pump. gear centrifugal piston peristaltic
The liquid pumped back into the top of a distillation tower
Definition of external reflux.
b - belts and chains are used to connect two parallel shafts; the drive shaft and the driven shaft.
Describe how chain and belt drives are used to operate rotating equipment. a & c b - belts and chains are used to connect two parallel shafts; the drive shaft and the driven shaft. a - belts and chains provide torque and speed to operating equipment. c - belts and chains provide a bridge or a coupling between the motor and driven device.
Suction stroke
During which stroke in a piston pump will the discharge valve be closed and the suction valve be open? Outlet stroke Discharge stroke Suction stroke Exhaust stroke
rotary
Dynamic pumps come in all the following designs and applications except: vertical or horizontal axial single stage or multi-stage rotary
piston
The most common type of reciprocating compressor is _______________.
Filter
Which device removes solid impurities from the gas in a compressed gas system?
Condenser
Which part of a distillation system is designed to cool vapors?
radiant
Which type of heat transfer is not normally used in Shell & Tube Heat Exchangers?
high boiling point
With reference to boiling points, in general a liquid with a low vapor pressure has a [__].
low boiling point
With reference to boiling points, liquid with a high vapor pressure generally has a [__]
The Range Wet Bulb Temperature Head Load The Approach
From the choices provided, select ONLY, ALL, the factors that affects the cooling tower performance: The Range Wet Bulb Temperature Head Load Dry Bulb Temperature The Approach
Direct fired Indirect fired
Furnaces firing is classified as _________ or _________ .
Single Two
Heat exchanger may have _______ or ________ phase flow on each side.
Volute
The [____] in a centrifugal pump is a widening spiral channel that lead to the pump discharge.
Stem
The [____] is a long slender shaft attached to the valve gate.
Steam Strainer
The [____] is designed to remove suspended solids and impurities from the high pressure steam which keeps the internal components of the turbine from being damaged.
Bonnet
The ________ provides a housing for the gate or disc when it is lifted out of the process flow.
latent heat of vaporization
The ___________ is the heat required to change a liquid to a gas.
False
T/F Water passes through the tubes of firetube boiler.
False
t/f In a steam turbine, high pressure steam energy is converted to Potential energy.
False
t/f In a steam turbine, high velocity steam flows through the nozzle and is directed against a set of fixed blades.
True
t/f The amount of steam energy needed to perform useful work depends upon the pressure range through which the turbine expands.
False
t/f The lower the pressure, the smaller the volume.
True
t/f The lube oil system in a steam turbine lubricates bearings and gears, cools lubricated parts, and acts as a hydraulic medium for the governor.
false
t/f The three types of heat transfer are radiant, conduction, and convergence.
packing
A specially designed material that prevents leakage from the bonnet yet allows the hand wheel to turn evenly:
Thermal shock
[_____] is caused by extreme variations in temperature that can cause equipment damage from uneven metal expansion.
Throttle
[________] valves are usually partially opened or closed during operation.
Relief valves
_____ _____ are used to prevent over-pressuring heat exchangers.
Desiccant dryer Demister
________ and ________ are two devices used in compressor systems to remove moisture from gases.
Direct Indirect Specials
_________ , __________ , & ____________ are the categories of Recuperative Heat Exchangers. -List in alphabetical order-
Fixed Tubesheet Floating heat Removable bundle U-tube
_________ , __________ , __________ , & __________ are the designs of Shell & Tube Heat Exchangers. -list in alphabetical order-
Forced
___________ draft is pushed through the boiler: Induced Forced Combination Natural
Ball Valve Butterfly Valve Plug Valve
___________, ___________ , & ___________ are the three quarter turn valves. -"WRITE THE COMPLETE DESCRIPTION"
The machine is overloaded The governor is set too low The steam strainer is clogged
___________, ____________ , & ___________ are three conditions that may prevent a steam turbine from developing full power.
Rotory Screw Lobe Liquid ring
___________, ____________ , & ___________ are three types of rotary compressors.
pulsation dampener surge drum volume bottle
List the three devices used in a reciprocating compressor to provide smooth gas flow, reduce vibration, and prevent under/ overloading.
British Thermal Unit
A _______ is the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. (Do not use acronym or abbreviation)
desiccant dryer
A ________ is used to remove moisture from compressor gases.
Tightness
A ___________ test ensures that the tower will not rupture during normal operations. Tightness Corrosive Temperature Strength
impingement
A baffle that is designed to deflect high velocity fluids inside a heat exchanger are called _______________ baffles. impingement vertical horizontal longitudinal
Approach
A better Performance indicator of the Cooling tower is its ................... Dry bulb temperature Wet bulb Temperature Range Approach
a - throttling service
A butterfly valve can be used for: a - throttling service b - on-off service c - cooling tower water service a, b, & c
an automatic valve & good for controlling flow direction
A check valve is: an automatic valve an automatic valve & good for controlling flow direction good for controlling flow direction a throttling valve
fluid flow and gravity
A check valve responds to the following scientific principle: pressure and temperature laminar and turbulent flow density and viscosity fluid flow and gravity
breathing
A conservation vent is used with the following term: gas-blanket breathing conserving tank terminology
Pig
A cylindrical device used to clean out pipes is called a [___].
is a cyclone-type device used to remove moisture from gas
A demister _______________. converts liquid into mist is a heat exchanger is a cyclone-type device used to remove solids from gas is a cyclone-type device used to remove moisture from gas
Actuator
A device mounted on a valve that is used to automatically position the flow control element is called the [ ].
actuator
A device mounted on a valve that is used to automatically position the flow control element: actuator positioner throttler accumulator
channel head
A device mounted on the inlet side of a shell and tube heat exchanger that is used to channel flow in a multipass heat exchanger is called the _______________. longitudinal baffle head sectional head channel head
coupling
A device used to connect the drive shaft of a motor or steam turbine to a pump, compressor, or generator is a(n) _______________.
air cooled
A fin fan is an example of a(n) _______-_______ heat exchanger.
high-pressure combustion gases to turn a turbine
A gas turbine is a device that uses _______________. low-pressure combustion gases to turn a turbine an axial compressor to lift pistons in the turbine engine high-pressure combustion gases to turn a turbine high-pressure air from a compressor to turn a turbine
double pipe
A hairpin heat exchanger is an example of _______________. shell and tube heat exchanger fin fan double pipe reboiler
to mix two fluids together and bring them to the same temperature
A heat exchanger can be used for each of the following tasks EXCEPT: to reduce the temperature of a hot fluid by means of a cooler fluid to mix two fluids together and bring them to the same temperature to boil a liquid by means of a hotter fluid to condense a gaseous fluid by means of a cooler fluid
Cooler
A heat exchanger that is used to decrease the temperature of a process fluid is often referred to as a:
static film
A layer of fluid that tends to adhere to the walls of a heat exchanger is referred to as _______________. laminar adhesion static film slack crystallization
parallel flow
A term used to describe flow in a heat exchanger where tube-side flow and shell-side flow go in the same directions is _______________
warping or thermal expansion
A term used to describe temperature changes and pipe expansion is: hot pipe expansion and pipe thrust induced fracture or energy refraction warping or thermal expansion radiant expansion and tube fracture
Instrument air
A term used to identify plant air that has been filtered and/or dried for use by instruments.
a) Impulse turbine
A turbine having alternate blades and nozzles is called as _______________. b) Reaction turbine Neither a) Impulse turbine Both
a, b, and c
A type of heat exchanger that channels the tube-side flow across the tube bundle more than once is _______________. a & b a, b, and c a - multi-pass b - u-tube c - Floating Head
Kettle Reboiler
A type of heat exchanger that uses a tubular bundle to heat and flash a liquid in an over-sized shell with a vapor disengaging cavity is a _______________.
hydraulic sensitive electronics
A typical governing system is divided into all of the following parts except _______________. speed sensitive control valve hydraulic sensitive electronics motion sensor amplifier to control valve
On/Off valve
A valve that is used fully opened or fully closed is referred as a [______ ______].
spiral
A volute pump has a housing made in the form of a(n)___________________ . spiral cone cylinder triangle
governor valve
An automatic valve that regulates the amount of steam admitted into a turbine is called the _______________.
gear
An example of a positive displacement pump is the____________ pump. centrifugal jet gear turbine
a clogged pump intake
Cavitation can be caused by _____________ . All of the listed conditions can cause cavitation. worn bearings high discharge pressure a clogged pump intake air ingested into the pump
100
Compressed gases will resume what percentage of their original volume when released?
compress relatively dry gases
Compressors are primarily designed to _______________. work in closed systems compress relatively dry gases compress gases and small amounts of liquid compress hot fluids
reflux
Cooled overhead product referred to as [____] is returned back to the top of the tower to maximize product purity.
Mechanical Draft Natural Draft
Cooling Towers are categorized as either ________ or ________ .
False
Cooling tower fan runs continuously year round
Evaporation Condensation
Cooling towers operate on the principles of _________ and _________.
Before fractionation
Corrosion can be controlled by treating crude oil ........ After fractionation Crude oil does not contain any corrosive components During fractionation Before fractionation
Freezing the liquid
Crystallization involves: Evaporating the liquid Boiling the liquid Adding crystallized product to the liquid Freezing the liquid
b - air-to-open
Electrical actuators come in all of the following designs except: c - motor b - air-to-open a - solenoid a & c
air-to-open
Electrical actuators come in all of the following designs except: solenoid motor solenoid & motor air-to-open
Liquid vapor
Evaporation is a process by which _________ is turned into _________ .
75
Evaporation loss account to about _____% of make up water. 75 25 15 10
Cocurrent Flow Counter Flow Crossflow
Excluding "Hybrid Flows," there are three basic flow configurations which are _________ ,_________ ,& _________ . -List in alphabetical order-
Ball Check Valve Lift Check Valve Swing Check Valve
Excluding a Stop Check Valve,__________ , _____________ , & ___________ are the three check valves commonly used in process operations. -LIST IN ALPHABETICAL ORDER AND WRITE COMPLETE DESCRIPTION-
a, b, & c
Explain the purpose of bearings and seals. a, b, & c c - Prevent internal and external leakage. b - Support the rotating shaft a & b a - Control radial and axial movement.
a and b
Fins are added to tubes because _______________. b - fins create turbulence a - thin material transfers heat better a and b c - fins enhance laminar flow
Combustion turbine
Gas turbine is also called as _______________.
On the side or bottom of a furnace
Furnace burners can be located On the side or bottom of a furnace On the side of a furnace On top of a furnace Only on the bottom of the furnace
Stop Check Valve
The only check valve that can be manually adjusted by a technician is the [ ].
Condensation
The opposite of evaporation is __________.
safety valve
The outlet is larger on a: relief valve safety valve
Should be lubricated periodically and can be tightened during valve operation.
The packing gland bolts and nuts: Should be lubricated periodically and can be tightened during valve operation. Can be tightened during valve operation. Should be lubricated periodically. Should never be tightened during valve operation.
a & b
Gas-blanketed tanks are used to: a & b b - reduce air, reduce flammability and explosive range of vapors a - store hazardous feedstocks c - cool-off product by holding molecules closer to the liquid
L V
The two types of compressor layouts are the ______ & _____ configuration.
true
Gases, vapors, and solids are non-compressible. directly proportional to temperature true depends on molecular structure of gas or vapor false
sensible heat
Heat that can be sensed or measured is: Temperature Specific Heat Latent Heat sensible heat
Sensible heat
Heat that produces a temperature change is _________. complete entry required
pushed
In a centrifugal pump, liquid is ___________ into the suction eye. sucked pushed
To allow liquid to build up on each tray
In a distillation tower that uses trays, what is the purpose of the weirs?
Piston
In a rotary pump, which component is NOT used to displace liquid? Piston Screw Gear Vanes
Impulse movement
In a steam turbine, the rotation of the blades in response to the steam is called _______________. rotor alignment impulse motion kinetic-mechanical energy conversion Impulse movement
To heat the feed before it enters the tower
In a typical distillation system, what is the purpose of the preheater?
water hot gases of combustion
In a watertube boiler, the __________ pass throuth the tubes and the __________ pass across the outside surface of the tubes.
Balanced Draft Forced Draft Induced Draft Natural Draft
In alphabetical order, list the four furnace draft designs are ___________ , _____________, ____________, & ___________ . Include the word "furnace" in your entry.
Its pressure is below atmospheric
Water can boil at 100oF if what condition exist? Its specific heat is decreased Its pressure is above atmospheric Its specific heat is increased Its pressure is below atmospheric
the bottom
Water draws are provided at: the top the middle the bottom are not provided in hydrocarbon systems
A-Frame Box Cabin Cylindrical
In alphabetical order, the four furnace designs are ________, ___________, ___________, & ___________ . The word "furnace" IS NOT required in you entry.
a, b, & c
List the important facts associated with pipe size and diameter. c - the inside and outside diameter of a pipe is slightly different. a, b, & c b - the term schedule (40 or 80) refers to the actual thickness of the pipe wall. a - most pipe used in plants is: 1/2", 3/4", 1", 1 1/2", 2", 3", 4", 6", 8", 10", 12", and 14" and higher. a & c
The number of stages or impellers
List the main differences between a single-stage and a multistage compressor.
non-compressible
Liquids are considered to be _______________. compressible in a PD compressor operation compressible in low pressure operations non-compressible compressible during high pressure operations <500 psig
on the rotor
T/F The suction and the discharge ports on a liquid ring compressor are located: suction on rotor, discharge on casing on the inlet and outlet side of the casing discharge on rotor and suction on casing on the rotor
False
T/F The tube head on a floating head heat exchanger is detached from the tube sheet.
a, b, & c
Tanks, drums, and vessels are typically classified as: b - liquid and gas service c - insulated, steam traced, and water cooled. a, b, & c a & b a - low and high pressure
pulsation dampener surge drum volume bottle
List the three devices used in a reciprocating compressor to provide smooth gas flow, reduce vibration, and prevent under/ overloading. ______________ , _________, & ____________
Natural gas
Most fired furnaces use: Coke oil Natural gas Process oil Nitrogen
to obtain higher heat transfer co-efficient and shorter tube
Multi-pass heat exchangers are used to obtain higher heat transfer co-efficient and shorter tube Because of simplicity of fabrication To reduce the pressure drop For low heat load
low to medium flow rates and medium to high pressure
Piston pumps are useful in applications that require____ . medium to high flow rates and medium to high pressure low to medium flow rates and low to medium pressure low to medium flow rates and medium to high pressure medium to high flow rates and low to medium pressure
Diaphragm Piston Vane
Pneumatic actuators come in three basic design which are ____________ , ____________ & __________ . -List alphabetical order-
diaphragm, piston, vane
Pneumatic actuators come in three basic design: diaphragm, piston, vane pneumatic, solenoid, hydraulic diaphragm, electric, motor diaphragm, electric, hydraulic
pump housing
Pump priming is the operation of completely filling the __________________ before starting. pump drain flow meter pump housing discharge line
Energy
Pumps work by adding _______ to a liquid. Air Gravity Density Energy
nipple
Regardless of type, all valves have the following basic parts, with the exception of ___________. bonnet body actuator nipple
Bacteria Algae Impurities
Select "only," all the items that could cause fouling in a heat exchanger. Chlorine Bacteria Algae Impurities
Temperature increases Pressure changes Phase changes
Select ONLY,, all the choices that describe possible effects of heat. Temperature increases Unaccounted for energy Pressure changes Phase changes
The boiling point of the substance with the highest boiling point
Select the best description of final boiling point. The difference between the substances with the highest boiling point and the lowest boiling point The boiling point of the substance with lowest boiling point The average boiling point of two substances in a liquid mixture The boiling point of the substance with the highest boiling point
The boiling point of the substance with lowest boiling point
Select the best description of initial boiling point. The difference between the substances with the highest boiling point and the lowest boiling point The average boiling point of two substances in a liquid mixture The boiling point of the substance with lowest boiling point The boiling point of the substance with the highest boiling point
Condensing steam
Select the choice that best describes a phase change. Heating air in a closed container Heating water and increasing its temperature Condensing steam Heating pure steam
To collect fluid at the ends of the heat exchanger
Select the choice that best describes the primary function of the heads in a shell and tube heat exchanger. To collect fluid at the ends of the heat exchanger To provide boundaries that separate the fluids To provide inlets for both fluids To plug leaking tubes
Chemical energy to thermal energy
Select the choice that describes the energy conversion that occurs when fuel is burned. Chemical energy to thermal energy Kinetic energy to latent heat Latent heat to kinetic energy Thermal energy to chemical energy
The use of a pump or fan
Select the choice that is most commonly associated with forced circulation heat transfer. Radiant waves Heat transfer through a metal rod Natural circulation The use of a pump or fan
Packing gland
Select the component that can be adjusted to control leakoff from the packing of a pump. Packing gland Teflon gasket Seal joint Lantern ring
condensing and non-condensing impulse and reactive
Select the four basic types of steam turbines. gas and wind condensing and non-condensing impulse and reactive steam and water
Volute
Select the pump component that is a widening spiral channel. Suction eye Discharge Volute Impeller
Volute
Select the pump component that is a widening spiral channel. Volute Suction eye Discharge Impeller
101°
Select the temperature difference that would produce the greatest rate of heat transfer. 1° 100° 0° 101°
visual, electronic-sonic, x-ray, magnetic
Select the various inspection procedures used in a process plant. x-ray, magnetic, EKG, MRI standard deviation, time chart inspection visual, electronic-sonic, x-ray, magnetic f-max, post hoc, biserial correlation inspection
increase the temperature of a liquid of vapor
Sensible heat is the heat required to ....... increase the temperature of a liquid of vapor change liquid into vapor change vapor into liquid convert water into steam and superheat it
section
Shell and tube nomenclature includes all of the following except _______________. counter divided parallel section cross flow split
5psig
Spherical and spheroidal storage tanks are designed to store gases or pressures above [___].
Flatter
Spheroidal tanks are __________ than spherical tanks. Bigger Thicker Flatter Rounder
a, b, c, & d
Steam is converted into mechanical energy for: c - Reactors a, b, & d d - Heating b - Exchangers a - Turbines a, b, c, & d
superheated steam
Steam that is removed from the water and heated up to a higher temperature is _____________. cut in the line boiler load desuperheated steam superheated steam
False
T/F A cooling tower's purpose is to supplement cooling water reserves.
True
T/F After cooling water has been cooled by the facility cooling tower, the water is then recirculated to process equipment.
True
T/F Ball valves provide very little restriction to flow when they are open.
True
T/F Boilers produce a variety of steam temperatures and pressures.
False
T/F Cooling towers are used to filter service water.
False
T/F Fin fans are a part of cooling tower operation.
False
T/F Gas volume does not vary with humidity, temperature and pressure.
True
T/F Hairpin heat exchangers are relatively easy to clean and install.
False
T/F Hairpin heat exchangers are typically as effective as most shell and tube heat exchangers.
False
T/F If the pH of the water in the cooling tower basin to too high, you should add a base to reduce it.
False
T/F Inside a tube with streamline fluid flow, temperatures are relatively constant.
True
T/F Laminar flow heat exchange is more effectively than turbulent flow inside a heat exchanger.
False
T/F Plate and frame heat exchangers are difficult to clean; however they have high heat transfer coefficients.
False
T/F Plate and frame heat exchangers tend to foul easily because they have close clearances and low pressure drops across the plates
True
T/F Steam is odorless, colorless, and tasteless
True
T/F The principle of compression has a measurable relationship between the volume a set weight of gas occupies.
False
T/F The size of cooling tower dictates the rate of heat transfer:
a and c
The internal lobes on a lobe compressor are designed _______________. a and c a - not to touch b - with a power lobe that pushes the idler lobe c - with a few thousandths of an inch clearance between casing and lobes
Melting
The latent heat of fusion is related to what change? Melting Condensing Boiling Temperature changes
Radiation Convection Conduction
The three methods of heat transfer are _________, _________, and ___________ .
Impulse Reactive
The two basic types of steam turbines are the _______ and __________ types
Impulse Reactive
The two basic types of steam turbines are the ________ and ___________ types.
Counter Flow Cross Draft
The two design of induced draft cooling towers are _________ and _________ :
Natural Draft Mechanical Draft
The two main categories into which Cooling Towers are grouped are _______ & ________
Batch Continuous
The two methods that distillation can be categorized into are _________ & __________.
rotary screw
The type of compressor that uses two helical rotors to compress gases is a _______________. rotary screw liquid ring piston- V layout twin lobe design
elevated dikes that surround a single tank
Traditional diking uses: fire protection, barricades, and trenches concrete pads and drainage systems firewalls, dikes, sloping grade and pits elevated dikes that surround a single tank
Heated air is less dense and rises.
What causes the air to flow through a natural-draft cooling tower? Heated air is less dense and rises. Heated air is more dense and rises. Heated air is less dense and sink. Heated air is more dense and sink.
A difference In density
What causes fluid movement during natural convection heat transfer? A difference in viscosity A pump A difference In density A fan
Number of products leaving the tower
What characteristic can best be used to tell the difference between a binary tower and a multidraw tower. Diameter Height Number of feeds entering the tower Number of products leaving the tower
Packing gland
What component holds the packing in place on a pump?
Desiccant dryer
What device is generally used to remove moisture from compressed air?
Stack damper
What device is used to control the amount of draft in a natural draft furnace?
Stack damperThe five process variables are
What device is used to control the amount of draft in a natural draft furnace?
Bearings
What devices are used to prevent shaft movement in pumps?
Reduce heat transfer
What effect can scale have on the operation of a cooling water system? Reduce heat transfer Decrease amount of dissolved gases Increase heat transfer Increase amount of dissolved gases
Reduce heat transfer
What effect can scale have on the operation of a cooling water system? Reduce heat transfer Increase amount of dissolved gases Decrease amount of dissolved gases Increase heat transfer
a, b, & c
What factors determine how thick a vessels walls should be? a, b, & c c - temperature and pressure b & c b - strength of material used a - anticipated corrosion rates
Heat transfer decreases
What happens to the rate of heat transfer when air blankets the tubes in a heat exchanger? Heat transfer decreases Heat transfer decreases then increases Heat transfer increases Heat transfer remains the same
the factors entering into the selection, use, and need for periodic inspection of materials used to make vessels.
What information do process technicians find on vessel design sheets? total cost of equipment manufacturer code stamp listings the factors or variables of each process and system the factors entering into the selection, use, and need for periodic inspection of materials used to make vessels.
a metal or alloy that contain a low percentage of iron if any at all
What is a nonferrous alloy? a key element in aluminum a key element in brass a metal or alloy that contains iron a metal or alloy that contain a low percentage of iron if any at all
All are considered alloy steel.
What is an alloy steel? steels that contain 1% or more of alloying metals steels that contain 5% or more of alloying metals All are considered alloy steel. steels that contain 10% or more of alloying metals
Fixed couplings
Which type of coupling locks the speed of a pump to the speed of its driver? Variable couplings Fixed couplings Hydraulic couplings Magnetic coupling
high resistance to water containing various impurities
Why are brass tubes used instead of carbon steel in many heat exchangers that use water as the cooling medium? high resistance to water containing various impurities high resistance to thermal expansion brass is less expensive easier to cut and install
To prevent leakage along the valve stem
Why is packing used in a valve?
pressure
With regards to operating condition, [____] affects the boiling temperature of a liquid.
stronger
With regards to strength, the bonds that hold liquid molecules to each other are [___] than the bonds that hold vapor molecules to each other.
radial vibration axial vibration inboard outboard bearing vibration
_________, _______________ , & ______________ are three examples of turbine vibration except.
Desiccant dryer Demister
__________ and ____________ are two devices used in compressor systems to remove moisture from gases.
Ball Valve Butterfly Valve Plug Valve
__________, ___________, ____________ are the three quarter turn valves. -include the word "valve" in your response-
radial vibration axial vibration inboard outboard bearing vibration
___________ , ___________ , & ____________ are three examples of turbine vibration.
Piston Diaphragm
___________ and ___________ are the two types of reciprocating Compressors.
Algae
____________ growth must not be allowed in cooling tower sump.
The governor is set too low The machine is overloaded The exhaust pressure is too high
____________, ____________ , & ___________ are three conditions that may prevent a steam turbine from developing full power.
Ball Check Valve Lift Check Valve Swing Check Valve
____________, ________________, _____________ are the three more commonly used check valves. -LIST IN ALPHABETICAL ORDER-
Figure Eight Blind Paddle Blind Stand-off Blind
_____________, ______________ , & _____________ are the three types of blinds commonly used in the Processing Industry. -list is alphabetical order-
Axial thrust Radial thrust
______________ & _______________ are two forces exerted on the pump shaft and if not kept in check, can cause severe damage
Dynamic Positive Displacement
______________ and ______________ are the two primary types of Compressors.
convection
______________ tubes are located in the top of the furnace.
False
t/f A process technician can look at a non-rising stem gate valve and determine whether it is:
FALSE
t/f A shell-an-tube heat exchanger is used either to heat or cool a substance.
False
t/f Ball valves are frequently used for throttling service.
False
t/f Because of its unique design, ball valves do not need seats.
False
t/f Compressed gases produce heat because of the increase in the velocity of air or gas flow.
True
t/f Condensate is water that results from steam losing its heat.
True
t/f Cooling tower fans are multi-speed fans.
False
t/f Cooling towers are always induced draft.
False
t/f Gas volume vary with temperature, pressure, and flow.
False
t/f Heat always travels from a body at a low temperature toward a body of high temperature.
Stationary elements and rotating elements
What are the names of the two groups of parts found inside a mechanical seal? Ring and rotating elements Stationary elements and rotating elements Rings and stationary elements Rings and packing
Liquids
A relief valve is used primary with:
Safety Valve
A safety device used to prevent compressor from over-pressuring is a ________.
c - relief valve
A safety device used to prevent positive displacement pumps from over pressuring is: b - sentinal valve a & c c - relief valve a - safety valve
overspeed trip
A safety device used to shut down a turbine when it exceeds rotational limits is called a _______________.
Longitudinal Transverse
Baffles in a shell and tube heat exchanger may be classified as either _______ or ______ . -list is alphabetical order-
Plug valves
Ball valves are most closely related to: Plug valves Butterfly valves Globe valves Gate valves
impellers
Multistage centrifugal pumps include two or more:
Mud and steam drum
Water tube boilers have two drums connected by tubes; they are called: Water chamber and sludge drum Blowdown and steam drum Riser and downcomer drums Mud and steam drum
Back pressure steam turbine
A Non-Condensing steam turbine can also be called as _________ turbine.
Steam Turbine
A [ ] is a piece of equipment that provide rotational energy to a pump, compressor, or generator.
Furnace
A [ ] is a piece of process equipment used to heat large quantities of hydrocarbons for commercial use.
Control loop
A [___ ____] is a group of instruments and devices that work together to control the value of a process variable.
globe valve
An angle valve is classified as a: diaphragm valve globe valve ball valve gate valve
a hatch or port used to provide open access into a tank.
A manway is best described as: a flat face flange used to connect piping to equipment a cylindrical device used to clean out pipes and tanks. a hatch or port used to provide open access into a tank. an insulated system designed to hold in heat or cold.
Nonferrous alloy
A metal or alloy that does not contain iron is called a(n)?
Initial boiling point Final boiling point
A mixture's boiling range is the temperature from it _______ to its ___________ .
heat soaking
A procedure designed to remove condensate from a steam turbine, warm the internal parts, and slow roll the turbine by bringing up the speed slowly is called _______________.
increasing fluid velocity lowering the temperature adding inhibitors
A process technician can reduce fouling in a heat exchanger by __________ , __________ , and or __________ .
Stuffing box
A recessed area specially designed to receive packing. Lantern ring Stuffing sleeve Packing gland Stuffing box
Liquids
A relief valve is used primary in what type of service?
Gases Vapors
A safety valve is used primarily with ______ and or ______ services.
Control Loop
A sensing element, transmitter, controller, transducer, and control valve or a collection of instruments that work together to automatically control a process is referred to as a [___].
packing
A specially designed material that prevents leakage from the bonnet yet allows the hand wheel to turn evenly: labyrinth seals packing segmental carbon rings mechanical seals
cross flow
A term used to describe flow in a heat exchanger where shell-side flow vertically crosses the horizontal tube flow is _______________.
Counter Flow
A term used to describe flow in a heat exchanger where tube-side flow and shell-side flow go in opposite directions is _______________.
a, b, & c
Abnormal noise in furnace operation can occur with: a, b, & c a - Fans c - Leaks a & c b - Burners
All molecular motion stops
Absolute zero is the point at which: Oil freezes All molecular motion stops Hydrocarbons can be extracted Water freezes
Pneumatic Electrical Hydraulic
Actuators come in three basic designs which are _________ , __________ , and _________ .
Electrical Hydraulic Pneumatic
Actuators come in three basic designs which are __________, ___________ , and __________ . -List alphabetical order-
atmospheric membrane
All of the following are examples of floating roof tanks except: atmospheric membrane pontoon type pan type double deck
Cone
All of the following are examples of pressure storage vessels except: Cone Spheroid Sphere Drum
Indicator
An [____] is a device that shows the current condition of a process variable usually through a visual representation.
a - a safety valve designed to prevent over pressuring the receiver
An inlet valve unloader is _______________. c - term applied to gas movement between stages a - a safety valve designed to prevent over pressuring the receiver a, b, & c a and c b - a relief valve designed to prevent over pressuring the receiver
Difference between Cold water outlet temperature and Wet bulb temperature
Approach of a Cooling Tower is ..... Difference between Atmospheric temperature and Wet bulb temperature Difference between Cold water outlet temperature and Wet bulb temperature Difference between Hot water Inlet temperature and Wet bulb temperature Difference between Hot water Inlet temperature and Cold Water Outlet temperature
Decrease
As pressure decreases, the boiling temperature of a liquid will do what? Decrease Increase Cease to exist Stay the sam
a, b, & c
Automatic valves can be used to control: a & c a, b, & c b - temperature & flow & analytical c - flow a - pressure & level
All of the variable listed
Automatic valves can be used to control: temperature & flow & analytical pressure & level flow All of the variable listed
Steam generators
Boilers are also referred to as [____].
a - Steam
Boilers are normally purged with: a, b, & c a & c b - Air c - Nitrogen a - Steam
physically connecting two objects together with a copper wire
Bonding is achieved by _______.
physically connecting two objects together with a copper wire.
Bonding is achieved by: adhering objects together with a chemical allowing electric sparks to discharge physically connecting two objects together with a copper wire. connecting an object to the earth with a rod
Poor
Butterfly valves have ________ throttling characteristics. Excellent Poor Good Zero
is the violent collapsing of bubbles as they pass through the impeller
Cavitation in a centrifugal pump....... is caused by voids in the pump discharge is an indication of a bent impeller blade is the violent collapsing of bubbles as they pass through the impeller is caused by worn pump bearings
The formation of bubbles or cavities in liquid, developed in areas of relatively low pressure around an impeller.
Cavitation is defined as: Condition in which a valve is closed to quickly False The formation of bubbles or cavities in liquid, developed in areas of relatively low pressure around an impeller. Condition in which to much water enters the pump All of the statements are correct
liquid in the pumping chamber boils & suction pressure drops below NPSH
Cavitation occurs when: liquid in the pumping chamber boils liquid in the pumping chamber boils & suction pressure drops below NPSH suction pressure drops below NPSH suction pressure drops below NPDH
c - accelerating the gas and converting the energy to pressure
Centrifugal compressors operate by _______________. b - accelerating the gas axially along the shaft a - compressing the gases in a cylinder and releasing c - accelerating the gas and converting the energy to pressure a, b, & c a and c
Impeller Propeller
Centrifugal pumps use an __________ to move liquids whereas Axial pumps use a ____________ .
swing check, ball check, & Lift/spring check
Check valve design(s) include: Gate check Lift check swing check swing check, ball check, & Lift/spring check
a, b, & c
Check valve design(s) include: a, b, & c c - ball check a, b, c, & d b - Lift check valves d - Gate Check a - swing check
Carbon
Coking can best be described as an accumulation of ______ deposits.
Boil up Rate Reflux Rate
Column temperatures can be adjusted by regulating the __________ and/or the __________ .
Firebox
Combustion in a water tube boiler occurs in the: Firebox Tubes Superheated section Risers
Columns & Towers
Common storage designs include all the following except: Spheres Spheroids Cylindrical Tanks Columns & Towers
Reciprocating pump
Diaphragm pumps and piston pumps are which type of positive displacement pump? Reciprocating pump Axial pump Rotary pump Plunger pump
solid particles, viscous liquids, and corrosive to toxic substances
Diaphragm pumps are useful in pumping ..................... solid particles, viscous liquids, corrosive to toxic substances, and dry, powdery substances solid particles, viscous liquids, and corrosive to toxic substances solid particles, corrosive to toxic substances, and dry, powdery substances viscous liquids, corrosive to toxic substances, and dry, powdery substances
air, hydraulic, and mechanical power
Diaphragm pumps can be operated by.............. air, hydraulic, and mechanical power hydraulic, electric, and mechanical power air, hydraulic, and pneumatic power air, hydraulic, and electric power
Reciprocating
Diaphragm pumps work in a_______ manner. Gyratory Reciprocating Rotary Orbital
corrosive service, viscous service, & throttling service
Diaphragm valves are used primarily for: throttling service corrosive service corrosive service, viscous service, & throttling service viscous service
Weir Non-weir
Diaphragm valves come in the following ________ and ___________ designs
Approach
Difference between the cold water temperature at tower outlet and the entering air with wet bulb temperature is defined as: Cycle of Concentration Range Approach Surging
When heat transfer area required is very low (Less than 100 Sq.Ft)
Double pipe heat exchangers are used Because it occupies less floor area When heat transfer area required is very low (Less than 100 Sq.Ft) Because it is less costly When heat transfer area required in very high
combustion
Draft gauges can be used to adjust proper ______________ in the boiler firebox.
Pressure difference between the inside of the furnace and the outside air pressure
Draft gauges on a furnace measure: The draft in the stack Burner air flow The difference in pressure of the firebox and the convection section Pressure difference between the inside of the furnace and the outside air pressure
Reaction
Each row of blades constitute a "stage" in a ______ Turbine.
a vent
Flame arrestors are typically mounted in: a pipe a stack gauge hatches a vent
Tubes
Flue gases in a fired-tube boilers flow through: Registers Tubes Shells Firebox
tube-and-shell pressure rating
Fouling resistance is determined by all of the following except the _______________. velocity of fluid stream tube-and-shell pressure rating amount of suspended solids type of fluid being handled
solid split, solid wedge, parallel disc
Gate valve flow control elements come in three basic designs: solid wedge, solid disc, parallel disc solid wedge, split parallel, double disc solid split, solid wedge, parallel disc double disc, parallel disc, solid wedge
pumping out water
Gauge hatches are used for all of the following except: provide pressure relief prevent loss of vapor and let rain in pumping out water allow contents to be measured
moderate to high flow and medium pressure
Gear pumps are useful in applications that require____ . high flow and high pressure moderate flow and low pressure moderate to high flow and medium pressure low flow and high pressure
throttling
Globe valves are primarily used for [____] services.
throttling service
Globe valves are primarily used for: infrequent service hydrocarbon service on-off service throttling service
a, b, & c
Globe valves have: c - greater pressure drop than an angle valve a, b, & c a - greater pressure drop than a ball valve. a & b b - greater pressure drop than a gate valve
frequent use
Globe valves operate efficiently in: frequent use very viscous fluid systems infrequent use very viscous fluid systems and infrequent use
connecting an object to the earth with a rod
Grounding is achieved by:
electromagnetic wave intensity
Heat exchanger effectiveness is linked to all of the following except _______________. ΔP [Delta P] cross sectional area electromagnetic wave intensity differential temperature flow rate
plate and packed
Heat exchangers can be found in all of the following categories except _______________. spiral plate and packed shell and tube reboiler plate and frame double-pipe air cooled
Can do work and cause change
Heat is a form of kinetic energy because it: Can slow down during freezing Is invisible to the naked eye Has a unique physical makeup Can do work and cause change
Latent heat
Heat transfer that does not result in a temperature change is referred to as ________.
decreases as temperature increases
How does increased temperature affect the performance of metals? is not affected by temperature increases as temperature increases decreases as temperature increases
speed-to-torque conversion or torque to speed conversion
How is power transmission in rotary equipment classified? Speed to RPM conversion Torque and Shear limits speed-to-torque conversion or torque to speed conversion Gear and clutch control
It is lighter.
How is the components that vaporizes first during distillation different from the component that vaporizes last? It has a higher concentration of bottoms product. It is heavier. It is lighter. It has a higher boiling point.
2%
In Evaporative cooling tower system the make-up water source is used to replenish around ____ of water lost to evaporation and draft. 15% 10% 25% 2%
Forced Draft
In ______ cooling tower design arrangement the air is blown through and the fans are located at the bottom.
1000 BTU's
In cooling towers, each pound of water evaporated removes approximately about _____ of heat from the water that remains 10,000 BTU's 100,000 BTU's 1000 BTU's 100 BTU's
Horizontally
In cross flow cooling towers, the air moves _____ through the fill across the downward fall of the water: Vertically downward Side to side Horizontally Vertically upward
Sensor Transmitter Controller Transducer Final Control Element
In sequential order ___________ , _________ , _________ , __________ ,& ________ are the five components of the process
Cooling Tower
In the Processing Industry, [____ _____] in the most common type of equipment that direct contact heat transfer.
Cooling Tower
In the Processing Industry, [____ _____] in the most common type of equipment that employs direct contact heat transfer.
tubular
In the Processing Industry, [____] in the most common type of Recuperative Heat Exchanger employed.
To separate a mixture of solutes
In what situation would a process facility use distillation? To help dissolve a substance in a liquid To cause a chemical reaction To change a gas to its liquid phase To separate a mixture of solutes
Parallel flow
In which type of heat exchanger do the fluids move in the same direction? Cross flow Semi-parallel Parallel flow Counter flow
Carbon monoxide
Incomplete combustion due to insufficient air yields an excess amount of Carbon dioxide Nitrogen oxide Sulfur dioxide Carbon monoxide
On top of the cooling tower
Induced draft cooling towers fans are located: In the middle of the cooling tower On the bottom of the cooling tower Have no fans On top of the cooling tower
pneumatic actuators, controllers, transducers
Industrial air is used primarily to operate: pneumatic actuators, controllers, transducers electric actuators, controllers, transducers hydraulic actuators, controllers, transducers purge tanks
fouling
Internal buildup on the surface area of a heat exchanger that results in a restriction is referred to as _______________. scale plugging purging fouling
Critical speed
It is the speed at which the machine vibrates most violently. It is due to many causes, such as imbalance or harmonic vibrations set up by the entire machine.
Idler gear
Many gear pumps have two gears. One gear is known as the driver gear. The other gear is called the [ ]. (Complete name)
firewalls, dikes, sloping grade and pits
Modern diking includes: concrete pads and drainage systems fire protection, barricades, and trenches elevated dikes that surround a single tank firewalls, dikes, sloping grade and pits
net positive suction head
NPSH stands for: national positive suction height net positive suction head net positive standard head normal positive suction head
Compressors transfer gases, pumps transfer liquids.
Name the primary difference between a pump and a compressor. Compressors transfer gases, pumps transfer liquids. Compressors use steam turbines vs. electric motors Pumps transfer fluids, compressors transfer gases. Pumps are smaller than compressors.
Buoyancy forces
Natural draft furnaces induce draft by: Positive pressure Buoyancy forces Do not need draft Negative pressure
shell inlet valve #3- steam
On a simple shell and tube heat exchanger, a process technician would close which of the following valves first? shell outlet valve #4- steam tube outlet valve #2- process fluid 325 °F shell inlet valve #3- steam tube inlet valve #1- process fluid 125 °F
tube outlet valve #2- process fluid 325 F
On a simple shell and tube heat exchanger, a process technician would turn the device into a bomb if he closed which of the following valves first. tube inlet valve #1- process fluid 125 F shell inlet valve #3- steam shell outlet valve #4- steam tube outlet valve #2- process fluid 325 F
To control biological growth
One of the reasons cooling towers are chemically treated is: Control water temperature To control biological growth To treat process equipment Control blowdown
To control biological growth
One of the reasons cooling towers are chemically treated is: To treat process equipment To control biological growth Control blowdown Control water temperature
Inspect the firebox through view ports
One way to check boiler draft balance is to look at: Fan speeds Check water levels Check fuel flow Inspect the firebox through view ports
equipment from area outside your unit.
Outside operators inspect all of the following except: equipment from area outside your unit. equipment oil levels. unit stationary and rotating equipment. unusual smells or vibrations.
two cylinders are lined up with separate intakes and common discharge lines
Parallel cylinder arrangement occurs when _______________. one cylinder is lined up with two separate intakes and common discharge lines two cylinders are lined up with separate intakes and separate discharge lines two cylinders are lined up with separate intakes and common discharge lines two cylinders are lined up with common intakes and separate discharge lines
Strainers
Particles in process fluids that could cause fouling can be removed by which component? Tube sheets Demister Strainers Air Dryer
rotary and reciprocating
Positive displacement pumps come in two basic designs: axial and centrifugal piston and plunger rotary and reciprocating screw and vane
displace a specific volume of liquid
Positive displacement pumps: centrifugally spin liquid displace varying volumes of fluid through rotary or reciprocating axially propel a specific volume of liquid displace a specific volume of liquid
Cut-segmental Baffles Disc and Doughnut Baffles Orifice Baffles
Primarily the three types of "Baffle Designs in shell and tube heat exchangers are _________ , _________ , & __________ . -include the word "baffle" in your entries-
Strapping Table
Process technicians use [______] to calculate the volume in a tank.
a, b, & c
Purpose of Cooling tower basin is ................. b - To provide the storage capacity during Makeup water failure a - To serve as receptacle for Cooled water b & c c - To act as a reservoir for the cooling water pumps a, b, & c
To reduce the entrainment of Water droplets in Air
Purpose of Drift Eliminator is .................... To reduce the entrainment of Water droplets in Air To provide the required surface area for heat transfer All of these To prevent the water droplets splashing out of the tower
a & c
Purpose of Louver is..................... d - To control water losses due to drift a, c, & d a - To change the direction of Air inlet flow in the uniform manner c - To prevent the water droplets splashing out of the tower a & c b - To Change the air inlet temperature
Difference between Hot water Inlet temperature and Cold Water Outlet temperature
Range of the Cooling tower is .... Difference between Hot water Inlet temperature and Cold Water Outlet temperature Difference between Cold water outlet temperature and Wet bulb temperature Difference between Atmospheric temperature and Wet bulb temperature Difference between Hot water Inlet temperature and Wet bulb temperature
thermal shock
Sudden temperature changes that result in the rapid expansion or contraction of metal is _______________.
Increases
The Cooling Water Temperature leaving a tower increases as the Wet Bulb Temperature _____ : Decreases Wet bulb temperature has not effect on cooling water temperature Remains same Increases
Ramp Rate
The [____] is the rate at which a compressor's speed is increased to bring it up to operating speed.
Coupling
The _____ is a device that connects a driver to a pump.
work well with liquid & gas phase
The advantages of a centrifugal pump include all of the following except: deliver a more constant rate work well with liquid & gas phase cheaper easier to install
work well with liquid & gas phase
The advantages of a centrifugal pump include all of the following except: easier to install cheaper work well with liquid & gas phase deliver a more constant rate
piston
The basic components of a centrifugal pump include all of the following except: piston volute suction eye impeller
pump
The basic components of a gas turbine system include all of the following except a _______________. pump combustion chamber gas turbine compressor
electric current closes the magnetic field.
The basic principles that allow an electric motor to operate include all of the following except: electric current closes the magnetic field. electric current creates a magnetic field. magnetic poles attract and repel each other. current direction determines the magnetic poles.
radial bearing
The bearing that keeps the shaft from moving from side to side is called the _______________.
Cross Stream Contamination
The biggest concern with direct contact heat exchange is [____].
Different metals expand differently at a given temperature
The bimetallic strip works on the principle that: Different metals expand differently at a given temperature Masses of volume will expand when heated Expanding liquids can move up a graduated scale Liquids expand when heated
water make-up
The coolest tube in the boiler system is the _______________. water make-up superheated steam generating economizer tube
open semi-open closed
The impeller design on a centrifugal pump come in all the _________, ___________ , & ________ designs.
8.34 lbs/gal
The density of fresh water at it densest point (~4 oC) is equal to [_____].{English system of measurements} -MUST INCLUDE UNITS-
Strainer
The device typically installed in the suction line just before the pump to traps solids from the process liquid is called a ________.
a and c
The difference between inlet and outlet pressures is commonly referred to as _______________. a - differential pressure a and c c - ΔP [Delta P] b - approach to the exchanger
Delta T
The difference between inlet and outlet temperature in a heat exchange is commonly referred to as [___].
Delta P
The difference between the pressure at the bottom of a distillation tower and the pressure at the top of the tower is referred to as [_____].
viscosity increases as temperature decreases
The effect of temperature on viscosity is generally: viscosity increases as temperature increases viscosity decreases as temperature decreases viscosity is not affected by temperature viscosity increases as temperature decreases
analytical flow level pressure temperature
The five process variables are ___________, _____________, ______________, _______________, ____________
The trim
The flow control element and seat is called: Huddling chamber The trim The Disc The Gate
the trim
The flow control element and seat is called: huddling chamber the trim the gate the disc
globe
The flow control element of this valve comes in the following designs; plug, composition, needle and ball: gate ball plug globe
Counter flow Cross flow Parallel flow
The flow patterns between the shell and tube side flows can be _______, _________ , or _________ . -include the word "flow" in you entry-
pressure
The flow produced by a centrifugal pump varies according to the_______________ at its out let. pressure atmosphere temperature suction
To remove the heat from process cooling water
The function of a cooling tower is: A place to chemically treat cooling water A place to refill supply of cooling water To remove the heat from process cooling water
To remove the heat from process cooling water
The function of a cooling tower is: To remove the heat from process cooling water A place to refill supply of cooling water A place to chemically treat cooling water
transfer Liquid through a system
The function of a dynamic pump is to ________________. convert liquid pressure into fluid velocity transfer Liquid through a system pressurize a container convert static head into fluid pressure
Greater
The greater the temperature difference between the two bodies, heat transfer rate will be _______: Same Lesser Greater
u-tube
The heat exchanger that is designed to take the highest flow rates and largest temperature differences is _______________. double-pipe fixed heads, multipass u-tube plate and frame
Energy balance
The heat input to a distillation tower must be equal to heat output from the distillation tower is referred to as [_______].
internal gear lobes piston
The major components of a centrifugal pump and driver include all of the following except: outer casing piston shaft suction eye volute internal gear lobes shaft seals motor shaft coupling shaft bearings impellers wear rings discharge
Should be lubricated periodically and can be tightened during valve operation.
The packing gland bolts and nuts: Should never be tightened during valve operation. Should be lubricated periodically and can be tightened during valve operation. Can be tightened during valve operation. Should be lubricated periodically.
.433 psig
The pressure exerted by a column of pure fresh water at its base is equal to ______?
External pressure
The pressure exerted by the atmosphere on a liquid in an open container can be referred to as what?
a - Direct the flow of fluid.
The primary purpose of a valve is. a - Direct the flow of fluid. c - Stop & Start the flow of fluid. a, b, & c b - Block in and isolate equipment.
Material balance
The product leaving a distillation tower must be equal to the feed entering the distillation tower is referred to as [_______].
Carbon Dioxide Water
The products of complete combustion are ________ and ________ .
Carbon Water Smoke
The products of incomplete combustion are ___________ , ___________, and __________ .
a and b
The rapid compression of a gas or vapor _______________. a - moves molecules closer together c - produces a cooling effect a and b b - generates heat a and c
Cycle of Concentration
The ratio of dissolved solids in circulating water to dissolved solids in makeup water is called as ....... L/G Ratio Cycle of Concentration Evaporation ratio Efficiency
Product specifications
The requirements for a given product is referred to as [_____].
a - replaceable and fixed
The seats in a gate valve fall into two categories: a & c b - replaceable and moveable c - rising & non-rising a - replaceable and fixed a, b, & c
replaceable and fixed
The seats in a gate valve fall into two categories: labyrinth and mechanical self guiding and fixed replaceable and moveable replaceable and fixed
1
The specific gravity of water is equal to [____].
Steam Generating Drum Mud Drum
The steam-generating tubes connected to ________ and the __________ in the boiler?
Rising and Non-rising
The stem on a gate valve comes in two designs: Moveable and fixed Replaceable and non-replaceable Rising and Non-rising Moveable and replaceable
stator-rotor impeller
The strator blades in an axial compressor can be arranged in all the following designs except _______________. individually adjustable stator-rotor impeller fixed continually variable
b - Transferring heat to another fluid
The temperature of hot fluid is reduced by: b - Transferring heat to another fluid c - Passing the hot fluid through the chiller b & c a - Mixing cool water with it a, b, & c
One British Thermal Unit
The term used to describe the amount of heat required to increase the temperature of one pound (0.45 kg) of water one-degree Fahrenheit (0.6 degrees Celsius) is: One British Thermal Unit Radiant heat Sensible heat Latent heat
type of fluid being handle velocity of fluid amount of solids in fluid stream
The three major factors that attribute to Heat Exchanger fouling are _________ , _________ , & __________ .
compressor, air receiver, dryer, gas header
The typical compressor system most closely resembles which of the following? compressor, gas header, air receiver, dryer compressor, air receiver, dryer, gas header compressor, dryer, air receiver, gas header gas header, compressor, dryer, air receiver
valve stem, double disc feather, huddling chamber
The typical gate valve has all of the following components except: stem, bonnet, packing, yoke bushing stuffing box, packing gland, hand wheel body, seating area, solid wedge gate valve stem, double disc feather, huddling chamber
under the flow control element
The typical globe valve directs flow: above the flow control element against the side of the flow control element under the flow control element All of the above depending on design
hand wheel, packing gland, gate
The typical globe valve has all of the following components except: disc, body, seating area body, flow control element, hand wheel stem, bonnet, packing, stuffing box hand wheel, packing gland, gate
hand wheel, packing gland, gate
The typical globe valve has all of the following components except: hand wheel, packing gland, gate disc, body, seating area stem, bonnet, packing, stuffing box body, flow control element, hand wheel
Air
The water flowing through a cooling tower is cooled as it is exposed to _____.
air
The water flowing through a cooling tower is cooled as it is exposed to _____.
Cocurrent Flow Counter Flow Crossflow Hybrids such as Cross Counterflow and Multi Pass Flow
There are four basic flow configurations which are ________ , __________, __________, and __________. -List in alphabetical order-
Roller or ball bearings Babbitt-faced collar bearings
There are four types of Thrust Bearings; _______ & _______ are two of them. -include the "bearings" in you entry-
Water seals Stuffing box
There are four types of turbines "seals;" ________ & _______ are two of the types -include the "seals" in you entry-
pressure
There is a direct correlation between steam temperature and _______________. flow rates analytical variables level in steam-generating drum pressure
Thermal conductivity
To be able to transfer heat well, the tube material should have good ________. Silver content Copper content Aluminuim content Thermal conductivity
impingement
Tube _________________ is caused by improper fuel to air ratio and can damage firebox tubes if not corrected
False
Turbulent flow allows molecules of fluid to mix and absorb heat energy better than laminar, but it enhances the stationary film along the shell and tube walls
instrument control distributive control system
Two different types of governor systems used on steam turbines include all of the following except _______________. instrument control distributive control system electronic hydraulic speed control mechanical hydraulic speed control
Seals Bearings
Vibration monitoring in a steam turbine is important because excessive vibration and temperature could indicate failing of ____________ or ______________ b
a fluids resistance to flow
Viscosity is defined as: a fluids resistance to flow amount of heat a fluid can absorb fluid density the thickness of a fluid
deteriorates equipment; loss of metal, pitting, grooving, cracking
What is corrosion, and how is it manifested? deteriorates equipment; loss of metal, pitting, grooving, cracking a chemical reaction that melts bonds; forms rust deteriorate metal by forming high pH solvents binds alloys to oxygen, loss of metal, pitting, grooving, cracking
Heating a liquid to boiling point
What is the first step in the process of distillation? Passing vapor through the condenser Collecting the distillate Reducing the temperature of a mixture Heating a liquid to boiling point
Flash zone
What is the middle section of a distillation tower commonly called?
a, b, and c
What is the name of the metal plates located inside a shell and tube heat exchanger that are designed to increase turbulent flow and reduce hotspots? c - longitudinal baffles a - vertical baffles a, b, and c a and c b - impingement baffle
the amount of movement the coupling will tolerate.
What is the primary difference between a rigid and a flexible coupling? the total rpm the coupling will tolerate. the strength of the coupling. the amount of money each coupling costs. the amount of movement the coupling will tolerate.
Steam generation for commercial use.
What is the primary purpose of a boiler? Burn excess hydrocarbons safely and efficiently. Steam generation for commercial use. Provide heat during winter months for control rooms. Heat large quantities of hydrocarbons for commercial use.
Cool Process cooling water for industrial applications.
What is the purpose of a cooling tower? Emergency quench cooling for reactors Provide cooling during summer months for control rooms. Cool Process cooling water for industrial applications. Cool hydrocarbons and excess vapors
To ensure complete combustion.
What is the purpose of excess air in relation to boiler combustion? To help clean the ozone layer. To ensure complete combustion. Stop build up of klinker in the boiler. To generate black smoke.
Stripping section
What is the section of a distillation tower below the feed point called?
Bottoms product
What is the term used to describe the product of a distillation system that contains primarily the heaviest part of the original liquid mixture? Steam product Overhead product Feed product Bottoms product Heartcut product
Overhead product
What is the term used to describe the product of a distillation system that contains primarily the lightest part of the original liquid mixture? Steam product Bottoms product Feed product Prime product Overhead product
The flow rate of one or both of the fluids
What is typically adjusted to control the rate of heat transfer in a shell and tube heat exchanger? The specific heat of the fluid flowing through the shell The specific heat of the fluid flowing through the tubes The flow rate of one or both of the fluids The amount of turbulence
a & c
What is/are the function(s) of the tubes in a shell and tube heat exchanger? c - To provide boundaries that separate the fluids b - To provide inlets for both fluids a & c a, b, & c a - To carry one of the fluids
Type 304 stainless steel
What metal is used for extremely low temperatures (below - 150˚F)? a & c carbon steel brass Type 304 stainless steel
carbon steel
What metal would you use for a vessel containing non-corrosive material at 100 psig and 300˚F? carbon steel stainless steel nonferrous alloy hasteloy
boiling point
What physical property is used to determine what component will separate out during the process of fractional distillation? boiling point density sample volume melting point
economizer
What section of the boiler is used to preheat feed water before it enters the boiler system?
stator and rotor blade
What two items make up a stage in an axial compressor? impeller and casing piston and rings stator and rotor blade diffuser and impeller
a or b
What type of equipment is an after-cooler or inter-cooler? a - air-cooled heat exchanger a or b c - refrigeration expansion valve b - water-cooled heat exchanger
Positive shutoff
What type of shut off does a paddle blind provide?
Safety Valve
What type of valve protect a process system from excess pressure.
Gases and liquids
Which states of matter are fluids? Solids, liquids and gases Liquids only Gases and liquids Gases only
gravel is striking the internal parts of the pump
When a centrifugal pump is cavitating, it sounds as if_________________ . it has a loose impeller it has bad bearings it is running backwards gravel is striking the internal parts of the pump
hot spot
When a furnace tube or section of refractory gets too hot it is called [__ ___].
hunting
When a steam turbine speeds up or slows down while the controller searches for the correct operating speed, it is called _______________.
Purge the firebox with steam
When lighting a furnace, the first thing that should be done is: Purge the firebox with steam Open the fuel gas to the firebox Fill the steam drum with water Open the product inlet
Combination wrench
When sized properly, a(n) _______ wrench will provide a better fit.
Decrease
When the temperature of a liquid is decreased, its rate of evaporation will: Decrease Remain the same Increase
Axial Centrifugal
Which are two classifications of dynamic compressors are __________ compressors & ___________ compressors?
Channel locks, wrenches, hammer
Which array below identify common hand tools used by process technicians. Pumps, compressors, steam turbines Screw driver, valves, valve wrench Radio, gloves, work boots Channel locks, wrenches, hammer
Register
Which component can be used to control the amount of air that is drawn into a furnace? Refractory Pilot Control Valve Register
Piston
Which component can be used to displace the liquid in a reciprocating pump? Piston Cam Screw Gear
Stack damper Fan Burner register
Which components of those listed can be used to control the air flow through a forced draft furnace? "Select only, all that apply" Stack damper Pump Block valve Fan Compressor Burner register
Which device removes solid impurities from the gas in a compressed gas system?
Which device removes solid impurities from the gas in a compressed gas system?
Nitrogen
Which fluids listed is often used to purge heat exchangers that are used to cool a flammable liquid? Air Nitrogen Benzene Carbon Dioxide
pneumatic
Which instrument uses air pressure, vacuum,or a gas such as nitrogen as a power source?
Electronic
Which instrument uses current as a power source?
Dust
Which of the components listed could be found as a suspended solid in cooling water? Dust Sulfuric acid Carbon dioxide Chlorine
separating components from a mixture using heat
Which of the following best defines fractional distillation? using the boiling point as a guide when mixing one sample with another purifying a sample that is contaminated with minerals none of the answers are correct separating components from a mixture using heat
Fluid/gas
Which of the following is needed for convection to happen? Light in the form or rays Fluid/gas Fire Electromagnetic waves
Precipitation
Which of the following is not a step in the process of distillation? Vaporization Precipitation Condensation Heating
shell and tube heat exchanger
Which of the following is the most common type of heat exchanger? shell and tube heat exchanger finned tube heat exchanger plate type exchanger spiral heat exchanger
Tin foil
Which of the following materials would not work well to block the conduction of heat? An insulated coffee mug Mittens Tin foil Fur
Riser tube
Which of the following parts is not a furnace part: Firebox Damper Stack Riser tube
Boiler
Which of the following process equipment does not use cooling water: Coolers Condenser Boiler Exchanger
Evaporation
Which of the listed processes causes most of the heat removal in a cooling tower? Convection Evaporation Condensation Boiling
Chemical attack on metal
Which of the phrases listed best describes the term 'corrosion?' Fouling caused by algae Wearing away of metal caused by fluid flow Fouling caused by scale Chemical attack on metal
Chlorine
Which of these chemicals can be added to the water in a cooling tower to help minimize the growth of micro-organisms? Amonia Chlorine Carbon dioxide Nitrogen
Energy associated with the movement of molecules
Which of these choices best describes heat? The temperature of a material Energy associated with the movement of molecules Energy required for work Energy absorbed during work
Blow down catch basin
Which of these methods can be used to reduce the amount of solids in cooling water? Add Chlorine Add Sulfuric Acid Add fresh make-up water Blow down catch basin
Algae
Which of these organisms could be considered micro-organisms that could live inside a cooling tower? Grass Kelp Mosquitoes Algae
Evaporation
Which of these processes causes most of the heat removal in a cooling tower? Conduction Boiling Evaporation Convection
Propeller
Which of these pump components is used in an Axial pump to convert the driver's energy into centrifugal force? Lobes Vane Impeller Propeller
Carbon Dioxide
Which of these substances could be found as a dissolved gas in cooling water? Calcium Carbon Dioxide Carbon Monoxide Helium
Flooding
Which of these terms is a condition in which liquid backs up in the downcomers and onto the trays of a column?
Specific heat
Which of these terms is related to the amount of heat required to raise the temperature of one pound of a substance one-degree Fahrenheit? Kinetic energy Radiant heat transfer Specific heat Thermal equilibrium
A difference in thermal energy
Which one of the following do all methods of heat transfer require? The movement of particles Direct physical contact A difference in thermal energy A liquid or gaseous state
a - Rotary pump
Which positive displacement pump uses a rotating motion to move the process liquid? a - Rotary pump b - Reciprocating pump d - Axial pump c - Diaphragm pump a & d
discharge
Which side of the impeller in a centrifugal pump exerts the most force on the shaft: balanced force on each side discharge suction
hasteloy
Would you use carbon steel, brass, stainless steel, or hasteloy in a hot, extremely corrosive process? carbon steel brass stainless steel hasteloy
Actuators
[ ] are electronic, pneumatic, or hydraulic devices tha move control devices, usually valves.
Indicators
[ ] are instrumentations that show the current condition of a process variable, usually through a visual representation such as a needle on a scale in a gauge or digital readout.
Mixing Reactor
[ ] is a piece of process equipment used to mix two or more chemicals under specific conditions to make or break chemical bonds.
Analytical
[ ] is a process variable that measures the chemical or physical properties of a substance.
Forced feed
[ ] lubricating systems are used to constantly circulate oil to a pump's bearings.
Positive Displacement
[ ] pumps displaces a specific volume of liquid on every stroke or rotation of the transfer element.
Oxygen
[___] is the component in air that is necessary for combustion?
Surge
[____] is a condition in which the flow rate of a gas through a compressor drops below a certain point and allows momentary reversals of flow.
Reboiler
[____] is the device used to supply heat to the bottom of a distillation column.
Direct contact
[_____ _____] heat transfer can occur whenever two substances at different temperatures touch each other physically.
Transmitter
[_____] is the device that receives is signal from the sensor then relays this information to the controller.
Coking
______ is an accumulation of carbon deposits on the inside wails of furnace tubes.
Draft
______ is the term generally used to describe the flow of air and combustion gases through afurnace.
Diaphragm Piston Plunger
______, _________ , & _________ are the three reciprocating pumps. -list in alphabetical order-
Diaphragm Piston Plunger
_______ , ________ , & _______ are the three reciprocating pumps. -list in alphabetical order-
Diaphragm Piston
_______ and _______ are the two types of reciprocating Compressors.
Latent
_______ heat will change the phase of a substance. Sensible Radiant Latent Solar
Electric Motor Steam Turbine
________ & ________ are the two drivers commonly used in industry for rotating equipment.
Dynamic Static
________ & _________ , are the categories of Regenerative Heat Exchangers. -List in alphabetical order-
Loose parts Unbalanced parts Rubbing parts
________ , ________ , & ________ , are three main causes of turbine vibration.
b & c
________ describe the typical effect(s) of scale buildup in a heat exchanger. a & c c - Insulated tube surfaces b & c a - Increased fluid flow rate b - Decreased heat transfer
Liquid ring Lobe Rotory Screw
________, __________ , & __________ are three types of rotary compressors.
Ball Check Valve Lift Check Valve Stop Check Valve Swing Check Valve
________, ___________ , _________ , & _________ are the four types of check valves. -LIST IN ALPHABETICAL ORDER-
Double Pipe Shell and Tube Spiral Tube
_________ , __________ , & _________ are the designs of Tubular Heat Exchangers. -list in alphabetical order-
Butterfly Valve Ball Valve Plug Valve
_________ , __________ , & _________ are the three quarter turn valves. -include the word "valve" in your response-
Axial bearings Radial bearings
_________ and _______ are the two type of bearing mounted in centrifugal pump.
Fire tube Water tube
_________ and _________ are the two general categories of plant boilers.
convection radiant
_________ and _________ are the two major types of tubes mounted in the interior of a furnace/fired heater.
pH
_________ is controlled in a cooling tower by treating it with hydrochloric acid.
Fixed Tubesheet Floating Tubes Removable bundle U-tube
_________, ________ , _________ , & _________ are the designs of Shell & Tube Heat Exchangers. -list in alphabetical order-
Inlet Outlet Casing
_________, _________ , and __________ are the three most basic components that all pumps have in common.
The difference between measurements taken from two separate points.
differential is: The difference between measurements taken from two separate points. The similarity between measurements take from two separate points. The difference between measurements take fro the same point at different times. The similarity between measurements taken from the same point at different times.