CRST Refrigeration Systems & Components

Question 1

What is the main function of the compressor in a refrigeration system?

Accepted Answer

Compress refrigerant vapor

Answer

Cool the refrigerant

Answer

Expand refrigerant

Answer

Filter impurities

Question 2

What component removes heat from the refrigerant?

Accepted Answer

Evaporator

Answer

Compressor

Answer

Condenser

Answer

Expansion valve

Question 3

What is the role of the condenser in a refrigeration system?

Accepted Answer

Reject heat and condense

Answer

Compress vapor

Answer

Evaporate refrigerant

Answer

Increase pressure

Question 4

How does the expansion valve function?

Accepted Answer

Regulate flow and reduce pressure

Answer

Increase refrigerant pressure

Answer

Compress refrigerant

Answer

Filter refrigerant

Question 5

Why is refrigerant important in a system?

Accepted Answer

Absorb and release heat

Answer

Lubricate components

Answer

Generate heat

Answer

Increase pressure

Question 6

What is the purpose of the receiver in refrigeration?

Accepted Answer

Store liquid refrigerant

Answer

Compress refrigerant

Answer

Evaporate refrigerant

Answer

Filter air

Question 7

How does the sight glass help in system maintenance?

Accepted Answer

Observe refrigerant flow

Answer

Measure temperature

Answer

Filter impurities

Answer

Increase pressure

Question 8

Why is proper lubrication important in refrigeration compressors?

Accepted Answer

Reduce friction and wear

Answer

Increase pressure

Answer

Cool refrigerant

Answer

Absorb heat

Question 9

What is a common cause of refrigeration system failure?

Accepted Answer

Refrigerant leaks

Answer

Proper maintenance

Answer

Clean components

Answer

Correct refrigerant charge