[D2L Practice] 104C Flashcards

1
Q

Running the compressor until the system pumps down at the end of every refrigeration cycle helps with oil return

T or F

A

True

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2
Q

What cycles are low temperature refrigeration?

1) defrost cycle
2) freezing cycle
3) warming cycle
4) both a & b

A

both a & b

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3
Q

What does DTC stand for?

A

defrost time clock

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4
Q

A timer motor in a time clock is powered at all times

A

True

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5
Q

What pressure should a pump out cycle shut the compressor off?

A

Just above 0 psig usually set at 2-5 psig

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6
Q

Refrigerant boiling out of the oil in a compressor crankcase can cause a system to short cycle

T or F

A

True

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