Practice Quiz Questions Flashcards

1
Q

The _________ is on the “high side” of the system; the _________ is on the “low side”

A

Condenser; evaporator

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2
Q

The main purpose of the sight glass in a vapor compression refrigeration system is to:

A

Check for vapor bubbles in the liquid line

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3
Q

In which type of system is compressor surging a serious concern?

A

Centrifugal chiller

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4
Q

Heat energy moves within a liquid by:

A

Convection

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5
Q

Just before the expansion valve (on the high side of the system) the refrigerant would be:

A

High Pressure Liquid

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6
Q

What would happen to the refrigerant inside the evaporator if there were no heat source?

A

Refrigerant liquid would remain a liquid

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7
Q

A flooded evaporator will use a _________ to prevent ________ from reaching the compressor.

A

Surge tank; liquid

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8
Q

Heat energy moves within a vacuum by:

A

Radiation

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9
Q

An “indirect vented” refrigeration system means that:
(think brine circuit)

A

The brine circuit is vented to atmosphere

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10
Q

Sensible heat is defined as:

A

Heat added or removed which causes a change of temperature

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11
Q

The water solenoid for a water-cooled condenser will open and supply water to the condenser on a ________ rise.

A

Pressure rise

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12
Q

In an Absorption refrigeration system, what is the refrigerant used?

A

Water

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13
Q

The air/water cooled removes heat from the refrigerant:

A

Condenser

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14
Q

The purpose of an evaporator is to:

A

Absorb heat into the refrigerant

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15
Q

In Alberta, standards for refrigeration are enforced by:

A

The Alberta Boiler Safety Association

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16
Q

The latent heat of vaporization is the amount of heat that must be supplied (without a change in temperature) to change states from:

A

Liquid to vapor

17
Q

In the condenser a refrigerant is changed from a high pressure ______ to a high pressure _______

A

Changed from a high pressure gas to a high pressure liquid

18
Q

What may be used to prevent liquid refrigerant from entering the compressor?
hint
(Located between evaporator and the compressor)

A

Low pressure receiver
Located between the evaporator and the compressor

19
Q

Which of the following systems has liquid refrigerant in the flow returning from the evaporator?

A

Liquid overfeed