MM A-School Test 1

Refrigerant cylinder us should not be exposed to temperatures above?

130°F

If refrigerant gets in your eye, how long should you wash your eyes out for?

15 minutes

Newton's First Law

A body at rest tends to remain at rest. A body in motion tends to remain in motion

Boyles law

A constant temperature, a change in pressure causes and inversely proportional change in value.

Element

A substance that cannot be reduced by chemical means

Electrohydraulic

A system of having an electric motor driven hydraulic pump that creates force through a hydraulic medium to drive a federal motor.

Idler Tension

Adjusts drive chain tension

What term describes the system used to protect the temperature system and electrical equipment ?

Air-conditioning

Newtons second law

An imbalance of force on a body tends to produce acceleration in the direction of the force

What component is used to prevent on authorized adjustments of the temperature regulator?

Anti-tampering device

Load

Any device that uses the power from power producing equipment

What is Brine?

Any water in which the concentration of chemical salt is higher than what it is in seawater?

Matter

Anything that occupies space and has weight.

What term describes the pressure exerted by the weight of the atmosphere?

Atmospheric pressure

Which component shift control from the online unit to the standby unit?

Auto change over transfer switch

Desalinization plants provide water for?

Boilers, diesel engines jacket water, and portable water system

What should be dispose in water only and enforces the wearing of PPE?

Calcium hypochlorite

What are the two scales the Navy used to measure with?

Celsius in Fahrenheit

What is condensation?

Change and physical state from a gas to a liquid.

What is evaporation?

Change and physical state from a liquid to a gas.

What are the five components of a refrigerator?

Compressor, receiver, condenser, TXV, & evaporator.

What component is located on the high side of the basic refrigerant cycle?

Condenser

Desalinization plants

Converts see what her into freshwater

What Capone it collects water in a distilling plant?

Distilling trough

What is used to prevent temperatures from the coming too low?

EPR valve

What is the term of the anchor windlass power unit?

Electrohydraulic

What is the main advantage of the Leslie Constantemp what are heater?

Eliminates the need for hot water tank

Kinetic energy

Energy of motion

True/false liquid is compressed to create hydraulic pressure?

False

What are the three skids that reverse osmosis is it mounted on?

Filter skid, high pressure skid, and reverse osmosis skid.

Anything that is made to flow or can be made to flow is a what?

Fluid

The room converts to......... to .........energy?

Fluid to Mechanical

What is the primary purpose of Refrigeration?

Food preservation

Newton's Third law

For every action there is an equal or opposite reaction

What time describes the lowering of an anchor by gravity?

Freefall

What is the Leslie constantemp temperature range ?

From 110 to 180

What is Laminar flow?

Has a streamline flow with liquid particles that flow smoothly and even layers and friction losses are minimal.

Latent heat of fusion

Heat energy added to a solid to change it to liquid.

What removes heat from substances and equipment?

Heat exchanger

Latent heat

Heat that is added or move from a substance while it is in the process of changing its physical state (cannot be measured by thermometer).

Latent heat of condensation

Heat that is removed from vapor to turn to liquid

Latent heat of Vaporization

Heath is added to liquid to change it to beaver

What is a brominator?

If this affects what are by treating chemically proportionally to water flow rate, and temperature.

What is the purpose of hydraulics?

It is used to power various tools and machines. For ex: anchor winless, cranes, steering gears, and rocket launchers.

The crossheads connects to the ...... & ......?

Linear and radial movement

What are the three types of rotor and go indicators?

Local remote and master

E stop/ emergency stop button

Located on the control panel.

Door Block

Located on the door to prevent closing if load/unload device is in any position except stow position.

Blend valve

Maintains water temperature of -/+ 4°F

What term describes the amount of matter an object contains?

Mass

British thermal units or (BTU's)

Measurement of heat energy in a substance.

What are testing requirement?

Medical & engineering

Reverse osmosis skid

Module skid where what are these pressure vessel

Principal of pressure

Most common units pounds per square inch or (psi) inches of mercury (in Hg) inches in water (H2O)

DW- 600B

Must be close to operate

Safety Observer

Must know role of all personnel at station stops conveyor under unsafe conditions.

What's term describes one of the key characteristics of refrigerant (The reason why it is used most often)?

No explosives

Where can PTR be found?

PTR chart

What provides the flow path for portable water?

Piping and valves

In what three ways is Mechanical Energy found?

Potential energy ,kinetic energy ,and energy in transition

What is force measured in?

Pounds and tons

Hydraulics

Practical application of liquids in motion

Pascals law

Pressure exerted on a confined liquid is transmitted in all directions and acts with equal force on all areas.

Door interlock

Prevents the conveyor from operating unless only two doors are open.

Whelps

Projection that fits into a chain link.

Turbulent flow

Random or a red pattern of flow and it results in an inefficient operation it also increases friction loss and has increased pressure drops.

What component remove heat from objects or materials and maintains them?

Refrigerant

What cooling agent is used to cool?

Refrigerant

When he is added or move to cause a chemical change of temperature without changing the physical?

Sensible heat

What valve maintains a specific pressure on it area of a system?

Sequence valve

Washtub

Stainless steel drum; perforated to drain during rent instruction.

Potential energy

Stored energy or position possessed by an object

What type of actuator is used on a long work strokes?

Telescoping cylinder

What component meets peak demands?

The accumulator

What is known as the input source and have an electric motor with any type of engine?

The driver or prime mover

What provides mechanical feedback from the router to the differential control unit?

The follow up assembly

What is distillation?

The process of evaporating seawater then cooling it in condensing the resulting vapor to produce freshwater.

Where is the writer angle indicator located on the bridge?

The writer and go indicator is located on the differential control unit (DCU)

What is the purpose of the writer angle indicator?

To indicate the angle of the rudder.

What is the purpose of anchor windlass?

To pay out or heave in

What's the purpose of the hydraulic system pump?

To produce force (pressure), transmit force through liquids, and convert force to mechanical work.

What are the general purposes of air-conditioning?

To protect temperature sensitive electronics and electrical equipment and to maintain proper temperature in ammunition storage spaces into also maintain comfortable crew living in the work kings basis

No pressure flash type advantages

To reduce Scale, classes at Lower boiling point, and requires less energy

What is the purpose of the reduction gear?

To reduce speed and increase torque

What are the dinner purposes of refrigeration?

To remove heat from spaces object or materials to maintain a lower temperature thing to run against we are in the primary purpose Is food preservation

What has a timer that starts the control chart and a master that energizes programmer systems only and it must be on to operate?

Toggles

What controls the flow of fluid and maintains a hydraulic lock/block?

Transfer block valve

True or false abominator uses chemicals to disinfect

True

True/false Are both liquid and gas a fluid?

True

Polycool

Use for delicate permanent cycles

Single tank

Used on small ships, officer messes, and CPO messes (ward room).

Filter skid

Used to clean

FW- 600B

Used to sanitize laundry by using steam

What term describes pressure below atmospheric pressure?

Vaccum

What are the two types of anchor windlass ?

Vertical and horizontal

What automatically stops the machine if there's excessive vibration?

Vibration switch

What is equal to the gravitational force with which an object is attracted to the earth?

Weight

When does the low air pressure activate?

When PSI Drops below 50 psi

High pressure skid

Where RO element takes place

What has drums fitted whelps to engage anchor chains?

Wildcats