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Aki's TRL > QMED > Flashcards

QMED Flashcards

1
Q

A selector valve is also known as a

A

Spool

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2
Q

Most large vessel steering system uses

A

Hydraulics for Rudder movement

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3
Q

According to NFPA signage “Red” means:

A

Fire

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4
Q

International convention for the prevention of pollution:

A

MARPOL 73/78

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5
Q

Violations of US environmental laws, US Mariners license can be suspended by:

A

US Coast Guard

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6
Q

Chemical data guide for bulk shipment by water is published by:

A

US Coast Guard

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7
Q

Acute exposure means:

A

Immediate contact

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8
Q

Component that enables the air compressor to start and come up to speed before compression begins:

A

Unloader

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9
Q

Prevents the refrigeration system from overheating:

A

Water failure

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10
Q

The bond on a grinding wheel describes its

A

Hardness

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11
Q

What are best examples of SafeGuards ?

A

Interlocks, Lock-Ins, Lockouts, Isolations

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12
Q

Vertical distance from the pump to the discharge level:

A

Discharge head

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13
Q

Protects the bearing housing if water leaks from the pump packing gland:

A

Water seal

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14
Q

Rotary pumps are what type of pumps

A

Positive displacement pump

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15
Q

It is the boundary and serves as a water box for fluid before and after entering the tubes

A

Head

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16
Q

“False” With regards to maximum allowable unsupported tube Length in HX is dependent on the tubes

1) diameter
2) material
3) thickness
4) Elasticity

A

Elasticity

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17
Q

HX tube are attached to

A

Tube sheets

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18
Q

Type of fitting that should not be used in systems that will be disturbed and subject to flexing or bending, Containing hot fluid or toxic gases

A

Compression fittings

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19
Q

Distance between the journal and the bearing inner diameter

A

Diametrical clearance

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20
Q

Converts hydraulic to mechanical energy, single or double acting, and is equipped with a cylinder with close fitting assembly

A

Actuator

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21
Q

What schedule are High pressure pipe

A

Schedule 120

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22
Q

Electronic component found in HVAC/R Controls that changes resistance due to change in temperature

A

Thermistor

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23
Q

Restriction to threaded tubing and pipe joint when the diameter is less than

A

2 inches

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24
Q

This sealing material is selected based on chemical compatibility temperature pressure of the system it serves

A

O-Ring

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25
Q

Very short pipe or tube with socket on both ends joining two pipes or tubes by welding brazing or soldering

A

Coupling

26
Q

It is best suited for use on flammable liquids

A

Aluminum

27
Q

It is important factor in the lubrication of ball in roller bearings as well as gear meshes:

A

Boundary lubrication

28
Q

It joins a pipes internal thread to external threads

A

Bushing

29
Q

Upper fluid boundary around a pumps shaft

A

Gland

30
Q

Spool shaped drum fitted on a winch:

A

Gypsy head

31
Q

What pump experience where compared to other pumps

A

screw pump

32
Q

The component that engages and disengages the winch drum, allows slippage to prevent exceeding clutch ratings, automatically engages when power is turned off to the winch motor

A

Clutch

33
Q

It can operate in either direction, forward or reverse of the windlass Direction:

A

Wildcat

34
Q

Quantity flowmeters our devices that measure the amount of fluid that passes and establish point

A

True

35
Q

Bearing surface material is Softer than the moving component so that the bearing material becomes wearable material (will wear before the moving component).
Many bearings are made of alloy of lead, bronze, brass called:

A

Babbitt

36
Q

Rigid bushing or sleeve type bearings are generally used in

A

Small auxiliary machinery

Pumps,compressors, blowers, and others

37
Q

Color for hydraulic oil

A

Orange

38
Q

Color for feed water

A

Dark blue

39
Q

Color for condensate

A

Light blue

40
Q

A pump that is self priming with low volume, has Has wear on pump parts and not practical for a very high or very low viscosity fluid

A

Screw pump

41
Q

An electrically driven centrifugal pump takes a suction from the Final stage distiller condenser is called:

A

Distillate pump

42
Q

It transmits and electrical signal corresponding to a mechanical as the Helmsman turns the wheel

A

Synchro transmitter

43
Q

Prior to getting underway what test are generally conducted

A

Steering test

44
Q

High pressure air are categorized by

A

1000 psi

45
Q

Medium pressure air are categorized by

A

150 psi - 1000 psi

46
Q

Low pressure air are categorized by

A

150 psi

47
Q

What will cause automatic compressor shut down

A

High frame oil temperature,
Low frame oil temperature,
Thermal motor overload (Electric motor driven compressors)

48
Q

It prevents water from entering into the ventilation they operate like baffle

A

Airlifts

49
Q

Federal hazardous material classes are:

A

CFR 49

50
Q

Material safety data sheet (MSDS)

Means written or printed material concerning a hazardous chemical which is prepared in accordance with:

A

CFR 29

51
Q

Chemical manufacturers or importers shall either provide the MSDS with the shipped containers

MSDS publisher:

A

Manufacture

52
Q

How does a resistance thermometer work?

A

It’s operating principle Is that the electrical resistance of metals varies with temperature

53
Q

Resistance thermometers Uses wires that are made out of What kind of metals

A

Nickel
Copper
Tantalum

54
Q

A needle valve may also be used in piping system Requiring:

A

Find adjustment in Fluid flow

55
Q

Rigid bushing or sleeve type bearings Are most often used in:

A

Small auxiliary machines

56
Q

The volute on a centrifugal pump causes fluid pressure to

A

Decrease

57
Q

Rudder Angle Indicator Accuracy check are done during:

A

While inspecting the steering gear at sea

58
Q

When are steering gear test conducted

A

Prior to getting underway

59
Q

Duel electro-hydraulic Steering units Usually operates:

A

With one pump on standby

60
Q

What is the Characteristics Of a rotary Centrifugal Compressor

A

Generates large volume of air at low pressure

Aki's TRL (4 decks)

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