Worksheets02. ACR-104 UNIT 21 REVIEW QUESTIONS
Total questions: 7
Worksheet time: 4mins
The sensible heat that is added to a saturated vapor after all of the liquid
has boiled away is referred to as _______.
radiant heat
superheat
real heat
thermal heat
Refrigerant in the evaporator
changes from vapor to liquid.
changes from liquid to vapor.
stays in the vapor state.
stays in the liquid state.
A refrigerant system’s evaporator typically runs about______degrees of superheat.
16°F-20°F
10°F-14°F
8°F-12°F
8°F-15°F
A low evaporator superheat indicates
undercharge.
system restriction.
overcharge.
dirt buildup.
Flooded evaporators use a(n)_______type of expansion device.
even-flow
low-side float
high-side float
When an evaporator experiences a heat-load increase, the suction pressure
remains constant.
decreases.
varies up and down.
increases.
A medium-temperature refrigeration box operates within what temperature range?
28°F to 40°F
40°F to 60°F
0°F to 220°F
0°F to 50°F
