[D2L Practice] 104C

Question 1

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

T or F

Answer 1

True

Question 2

What cycles are low temperature refrigeration?

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

Answer 2

both a & b

Question 3

What does DTC stand for?

Answer 3

defrost time clock

Question 4

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

Answer 4

True

Question 5

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

Answer 5

Just above 0 psig usually set at 2-5 psig

Question 6

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

T or F

Answer 6

True