Piping

Threading plastic pipe is not recommended for pipes over ________________. a. 1/4 inches in diameter b. 1/2 inches in diameter c. 2 inches in diameter d. 5 inches in diameter

2 inches in diameter

The most common schedule number for steel piping is ______________. a. 160 b. 40 c. 110 d. 80

40

Plastic pipe comes in schedule numbers, _________. a. 40,80,160 b. 5,10,20 c. 40,80,120 d. 1000,2000,3000

40,80,120

Only schedule _________ PVC pipe or heavier should be threaded. a. 40 b. 80 c. 120 d. 160

80

This type of thermoplastic can withstand up to 200° a. PVC b. CPVC c. PP d. PE

CPVC

___________ threads produce a joint in a piping system that is pressure tight. a. ASME b. NPT c. NASA d. NPSL

NPT

This type of thermoplastic can withstand up to 140° a. PVC b. CPVC c. PP d. PE

PCV

_______ is the second most widely used thermoplastic material. (Sanitary sewer drainage) a. PVC b. CPVC c. PP d. PE

PE

This type of thermoplastic is used when involving more corrosice conditions and higher temperatures then can be handled by a PVC. a. PVC b. CPVC c. PP d. PE

PP

_________ is the lightest of all the plastic piping materials. a. PVC b. CPVC c. PP d. PE

PP

The most widely used plastic pipe in home and industry is _____________ pipe. a. PE b. PP c. PVC d. CPVC

PVC

Permanent hose fittings require _____________ to assemble. a. no special tools b. a crimping machine c. a drill press d. hose clamps

a crimping machine

Metal tubing can be cut using _______________. a. tin snips b. a utility knife c. a hacksaw d. diagonal clippers

a hacksaw

All metal tubing is specified by its __________________. a. actual outside diameter except copper water tubing b. actual outside diameter c. nominal diameter d. actual inside diameter

actual outside diameter except copper water tubing

An important step in preparing tubing for soldering is ________________. a. deburr the ID and the OD of the cut end b. clean the outside of the tube with sandpaper or emery cloth c. clean the inside of the tube using a wire brush d. all of the above e. none of the above

all of the above

Since two-way valves require maintenance, which of the following steps are recommended for that maintenance? a. inspect the valve handwheel or lever for leaks b. operate the valve c. look for leaks around the valve connection d. all of the above

all of the above

Which of the following is a requirement in determining hose size requirements? a. determine beginning head or pressure requirements b. determine ending head or pressure requirements c. determine the length of the hose d. all of the above e. none of the above

all of the above

______________ is a method of measuring a section of piping between fittings. a. end-to-end b. center-to-center c. face-to-face d. all of the above e. none of the above

all of the above

_______________ is a major reason for piping system problems. a. loose pipe fittings b. ruptured pipes c. worn out pipes caused by deterioration d. all of the above e. none of the above

all of the above

The function of an expansion joint is to _____________. a. provide a means of dissembling a piping system without cutting pipe b. provide a means to expand a piping system for a future building addition c. allow heat expansion in metal pipe d. increase pipe diameter in a run of pipe

allow heat expansion in metal pipe

Mechanical expansion joint include __________ and steel braid joints in both threaded and flange connections. a. dissimilar type metal joints b. bellows type joints c. expanding plastic type joints d. solid copper tube joints

b. bellows type joints

The colored bands used on pipes that carry gases of low hazard materials is _____________. a. green b. yellow c. red d. blue

blue

The flange fitting is the type of pipe joint that is _____________. a. bonding together with waterproof adhesive b. joined by a force for between the pipe and the flange c. welding together d. bolted together

bolted together

A ______________ is used to terminate a length of pipe. a. street elbow b. cap c. shoulder nipple d. spool piece

cap

The function of piping systems is to _______________. a. store liquids for future use b. carry liquids or gasses from one location to another c. meter liquids or gases to a chemical process d. provide hangers for electrical conduit in an industrial complex

carry liquids or gasses from one location to another

Pressure on hydraulic hose can _______________. a. reduce hose life b. reduce hose flexibility c. change hose length d. change kinks in the hose

change hose length

Hose is a flexible fluid conductor which is used to connect ______________. a. components of a machine that are fixed in place b. only low pressure water line c. components of a machine that move in relation to each other d. only air compressors

components of a machine that move in relation to each other

______________ method only allows you to use two types of materials; small diamter polyethylene and polybutylene. a. flanges b. compression insert c. threading

compression insert

A valve is a device that ________________. a. indicates the direction of flow in a piping system b. speed up the flow of liquid in a piping system c. controls the flow of liquid in a piping system d. indicates the speed that a liquid is flowing in a piping system

controls the flow of liquid in a piping system

Hydraulic hose having wire braid reinforcement should be cut with a _________________. a. cut-off saw b. utility knife c. billhook d. oxy-acetylene torch

cut-off saw

Before assembling a section of pipe, you should ____________ the end of the pipe. a. deburr b. heat treat c. replace the zinc plate that was removed by threading d. anneal

deburr

After cutting metal tubing with a tube cutter, the end of the tube should be ___________________. a. reducing in diameter on a machine lathe b. deburred c. heat treated d. tinned, using solder and a heat source

deburred

The first step in selecting and sizing pipe for a given application is ______________. a. determine beginning pressure b. determine ending pressure c. calculate the pipe length d. determine needed flow rate

determine beginning pressure

The first step in installing a pipe hanger is _____________. a. select the rod diameter b. determine the number of pipe hangers and their location c. make sure the pipe hangers and the pipes clear obstruction d. install the pipe hangers and the pipe

determine the number of pipe hangers and their location

Which of the following is not a requirement in the selection of the size of plastic pipe for application? a. determine the type of fluid through the system b. determine the amount of pressure needed at the end of the piping run c. determine the needed flow rate required d. determine the length of the piping system

determine the type of fluid through the system

Which of the following is not a requirement in determining head loss for a given valve size? a. determine valve size and type b. determine flow rate c. determine type of coating inside the valve d. determine equivalent pipe length

determine type of coating inside the valve

Pipe fittings that change direction include _____________. a. unions b. caps c. bushings d. elbows

elbows

When installing piping, do not use metal ladders near ________________. a. conveyors b. monorail tracks c. electrical wiring d. water mains

electrical wiring

When a hose fails, it is important to __________. a. finds out the cause of the failure and correct it b. replace the hose with a larger diameter hose c. recover the fittings for use on the replacement hose d. replace the hose with a longer hose

finds out the cause of the failure and correct it

___________ are used to join the various elements of a piping system together. a. meters b. fittings c. pipe hangers d. tie wraps

fittings

The proper tool in assembling flared fittings is a _______________. a. hammer and center punch b. larger bolt and a hammer c. flaring tool d. slip joint pliers

flaring tool

____________ pipe has excellent corrosive properties and can withstand temperatures up to 300 degrees Fahrenheit. a. PCV b. glass-reinforced eproxy c. polyethlene d. CPVC

glass-reinforced eproxy

______________ tape contains nickel, anti-seizing, anti-gailling and anti-corrosion, used for stainless pipes. a. gray b. pink c. blue d. copper e. yellow

gray

In plastic pipe sizes, the higher the schedule number, the ________________. a. more flexible the pipe b. lighter the pipe c. thinner the wall thickness d. greater the wall thickness

greater the wall thickness

The colored bands used on pipes that carry safe materials is _____________. a. green b. yellow c. red d. blue

green

_____ tape is oil-free PTFE used on oxygen lines and some specific medical gasses a. yellow b. green c. blue d. copper e. white

green

A common tool used to cut plastic pipe is the _____________. a. hacksaw b. arc welder c. utility knife d. machine lathe

hacksaw

Steel pipe can be cut to length for installation using a(n) ______________. a. arc welding machine b. hacksaw c. drill press d. thread cutting machine

hacksaw

As water flow through a pipe, the pressure that is due to friction is measured in _____________. a. feet per second b. head loss (ft) per 100 feet of pipe c. pounds per cubic feet d. feet per second per second

head loss (ft) per 100 feet of pipe

Why is it necessary in determining head loss to know the length of the hose? a. the flow is directly proportional to the length b. head loss increases as length of the hose increases c. head loss decreases as the length of the hose increases d. none of the above

head loss increases as length of the hose increases

Wielded joints for connecting steel pipes and fittings are mandatory for ____________. a. high pressure application b. low pressure applications c. drinking water systems d. sewage systems

high pressure application

The function of a piping schematic is to show ____________. a. how a piping system is designed b. a maintenance schedule of the piping system c. the weight of the piping system d. the pressure drop in the components of the system

how a piping system is designed

Hose size is specified by _________________. a. outside diameter b. inside diameter c. wall thickness d. inside coating

inside diameter

Seamless steel tubing _________________. a. is weaker than welded tubing b. is ideal for resisting internal buildup c. has a very rough internal finish d. is welded tubing that has been ground to a smooth external finish

is ideal for resisting internal buildup

When bending soft copper tubing with a lever-type bender, the angle of the bend ___________. a. is indicated on the tube bender b. must be estimated by the operator c. cannot be determined d. must not exceed 90 degrees

is indicated on the tube bender

Brass tubing _______________. a. is weaker than copper tubing b. will bend easily without crimping c. is prone to corrosion in hot water lines d. is the color of a penny

is prone to corrosion in hot water lines

What is the last step in the design of a piping system? a. make a schematic drawing of the piping system b. take measurements c. plan for pipe hangers d. make a basic layout

make a schematic drawing of the piping system

Galvanized pipe is _______________. a. malleable steel pipe that has been zinc coated b. high tempered brass pipe c. anodized aluminum pipe d. chrome plated stainless steel pipe

malleable steel pipe that has been zinc coated

Fiber braid hose is recommended for _____________. a. medium pressure installations b. high temperature installations c. pressure as high as 6000 psi d. installations where hose abrasion is a problem

medium pressure installation

Gate valves are installed where there is ______________. a. a possibility of freezing temperatures in piping location b. abrasive matter contained in the liquid flowing through the pipe c. a need for throttling the flow d. no need for partial flow

no need for partial flow

Solvent welding PVC pipe requires _____________. a. a heat gun b. an arc welder c. acid etching of the mating surface d. no special tools

no special tools

The size of a pipe fitting is described by the ___________ of the pipe that will be attached to the fitting. a. actual diameter b. inside diameter c. wall thickness d. nominal diameter

nominal diameter

Soldering copper joints can ____________. a. not be easily disassembled b. be disassembled using joint compound c. be unscrewed for disassembly d. be broken apart using a hammer and a center punch

not be easily disassembled

If a leak in a valve stem cannot be stopped by tightening the packing nut, you must replace the _________________. a. valve b. packing around the valve stem c. valve stem d. packing nut

packing around the valve stem

__________ tape is used on NPT threads 1/2 to 2 inch, safe for propane and other hydrocarbon fuels. a. gray b. pink c. blue d. copper e. yellow

pink

An alternate to pipe dope is _______________. a. lithium grease b. thread cutting oil c. paint d. pipe tape

pipe tape

The basic components of a piping system are __________ and ______________.

pipe, fittings

Head loss is the ____________ as fluid as travels down a piping system. a. flow volume decrease b. pressure lost c. amount of flow lost through a weld d. none of the above

pressure lost

Multiple-steel braid wire is recommended for __________. a. medium pressure installations b. high temperature installations c. pressure as high as 6000 psi d. installations where hose abrasion is a problem

pressures as high as 6000 psi

The colored bands used on pipes that carry fire protection materials is _____________. a. green b. yellow c. red d. blue

red

To assemble hydraulic hose, some type of hose require skiving, which means ______________. a. drilling out the inner tube before assembling in the crimping machine b. wrapping the end of the hose with pipe tape before assembly c. removing the cover of the hose for the length of the collet d. roughing up the outer cover of the hose with course sandpaper

removing the cover of the hose for the length of the collet

The most important procedure to assure that the tubing is performing to specifications is ___________. a. checking the temperature b. routine inspection c. new valves d. do not lay on the floor

routine inspection

The reducing flange is similar to the regular flange except the pipe diameter is ___________ while the outside rim diameter _______________ the diameter of the flange having a larger pipe size. a. larger, is smaller b. smaller, matches c. larger, matches d. none of the above

smaller, matches

Thermoplastic pipe _____________. a. softens when heated b. hardens when heated c. remain soft under all conditions d. can withstand high temperatures without deforming

softens when heated

Suction hose contains braided fiber reinforcements with ____________ to prevent collapsing. a. a rubber inner tube b. three layers of polyester c. high pressure kevlar d. spiral wire

spiral wire

This welding method is mainly used as a way of repairing leaks in plastic pipes. Cannot be used on thermoset materials. a. solvent weldning b. socket heat fusion c. stick welding

stick welding

Braided steel hoses with _______________ combine much of the heat and wear resistance with a non-adhesive inner liner that makes it FDA approved for food. a. teflon inner tube b. rubber inner tube c. steel inner tube d. polyester inner tube

teflon inner tube

To disassemble a push-lock hose fitting _____________. a. the fitting must be drilled out using a drill press b. the hose must be cut to release the fitting c. the hose must first be lubricated with hose assembly lubricant d. the fitting is placed in a vise and the hose is pulled off with a twisting motion

the hose must be cut to release the fitting

________________ is a type of plastic that softens when it is heated and hardens when it is cooled.

thermoplastic

_______________ is chemically changed when heated and will remain permanently hardened when cooled.

thermoset

When using a thread cutting machine, it is necessary to apply ________ as you cut the threads. a. lithium grease b. water c. thread cutting oil d. compressed air

thread cutting oil

Many leaks caused by loose fittings in a piping system can be stopped by ____________. a. painting the pipe and fitting b. lubricating the pipe joint c. caulking the pipe joint d. tightening the pipe joint

tightening the pipe joint

The function of fiberglass insulation in a piping system is ______________. a. to confine heat b. chemical resistance c. to reduce vibration d. to reduce condensation

to confine heat

Dress safety rules are mainly designed to _______________. a. help keep you clean and neat b. to keep you or your clothes from getting caught in moving machinery c. to prevent damage to the equipment you are installing d. all of the above e. none of the above

to keep you or your clothes from getting caught in moving machinery

The __________ is used to suspend several small pipes. a. trapeze hanger b. roller hanger c. clevis hanger d. strap hanger

trapeze hanger

The advantage of tubing over piping is that ________________. a. tubing is less susceptible to vibration cracks b. tubing is available in many more sizes than pipe c. water tubing will not freeze in close weather d. tubing can be bent around obstruction

tubing can be bent around obstruction

______________ is not a requirement to calculate pipe length from a pipe schematic drawing. a. determine pipe size b. determine center-to-center distance c. determine thread length d. determine type of pipe

type of the pipe

A broken piping section must be removed by cutting out the bad section and installing a new section using _________________. a. valves b. unions c. brackets d. manometers

unions

The WOG specification marked on the side of a valve means _________________. a. use with out gas b. use for water or gas c. use of water, oil, and gas d. water operation, and gas

use of water, oil, and gas

Plastic pipe systems are assembled by _________. a. using solvent cement b. soldering c. arc welding d. using fiberglass clamps

using solvent cement

Cast iron pipe is used for __________. a. high pressure gas b. warm air ducts c. high pressure steam d. water mains

water mains

Metal hose is recommended for use ________________. a. where temperatures range from 0 degrees C to 100 degrees C b. in low temperature water lines c. where abrasion resistance is needed d. in automotive fuel lines

where abrasion resistance is needed

_________ tape is used on NPT threads up to 3/8 inch. a. yellow b. green c. blue d. copper e. white

white

The colored bands used on pipes that carry dangerous materials is _____________. a. green b. yellow c. red d. blue

yellow

________ tape is used on NPT threads 1/2 to 2 inch, often labled gas tape a. yellow b. green c. blue d. copper e. white

yellow