
Unit 21 Quiz
Authored by Devell Young
Other
10th Grade
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
The difference in temperature between the boiling refrigerant temperature and the evaporator outlet temperature is known as __________.
suction line superheat
temperature difference
delta T
evaporator superheat
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
A low evaporator superheat indicates
undercharge.
system restriction.
overcharge.
dirt buildup.
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
When an evaporator experiences a heat-load increase, the suction pressure
remains constant.
decreases.
varies up and down.
increases.
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
When the evaporator removes heat from the air and lowers the temperature of the air, ________.
refrigerant vapor condenses to liquid
moisture is added to the air
sensible heat is removed from the air
latent heat is added to the air
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
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
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
When moisture is removed from the air, latent heat is removed.
True
False
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Natural-convection evaporators use a blower to force or induce air over the coil to improve the efficiency of the heat exchange.
True
False
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