BASIC REFRIGERATION - Practice Mode

1) Which two components do the compressor function in vapour absorption system?

Generator and absorber Generator and separator Generator and condenser Generator and evaporator

Correct Answer: Generator and absorber

2) Which components are connected by metering device in vapour compression cycle?

Condenser and evaporator Compressor and condenser Evaporator and suction line Compressor and evaporator

Correct Answer: Condenser and evaporator

Explanation:

A positive temperature coefficient (PTC) refers to materials that experience an increase in electrical resistance when their temperature is raised. Materials which have useful engineering applications usually show a relatively rapid increase with temperature, i.e. a higher coefficient.

3) Which condition is maintained for refrigerant in high side of vapour compression system?

Above its critical temperature Below its critical temperature Above its freezing temperature Below its freezing temperature

Correct Answer: Below its critical temperature

4) Which factors produce work?

Force and distance Time and distance Force and power Force and time

Correct Answer: Force and distance

5) What is the purpose of accumulator in a refrigerator?

Improves oil circulation Prevents surging of refrigerant Avoids hunting of refrigerant Prevents liquid flood back to compressor

Correct Answer: Prevents liquid flood back to compressor

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