Auxiliary Machinery. Test 76 – Online Maritime Tests

In a refrigeration system, a precooler is sometimes installed between the _____

What is the function of the expansion valve ?

To increase the pressure of the liquid refrigerant.
To reduce the pressure of the liquid refrigerant.
To regulate the flow of refrigerant to the evaporator.
To regulate the flow of refrigerant to the evaporator and to reduce the pressure of the liquid refrigerant.

What are the four processes in a refrigeration cycle ?

In the refrigeration system, the low pressure side would be from _____

What is the function of the compressor ?

To compress hot air and to pump the liquid stored in the auxiliary refrigerant tank.
To pump the liquid stored in the auxiliary refrigerant tank.
To compress the refrigerant.
To compress hot air.

What is the function of the evaporator ?

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