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Study MCQ
Refrigeration and Air Conditioning Technician
PACKAGE AIR CONDITIONER
Set 5
Set 5
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Q10217
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Which control terminals are shorted before pump down operation in package AC?
A
Selector switch
B
H.P cut-out switch
C
L.P cut-out switch
D
Thermostat switch
Q10218
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Which valve is kept closed to check the function of low pressure switch?
A
Reed valve
B
Suction valve
C
Liquid line valve
D
Discharge service valve
Q10219
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What is the advantage of water pressure cut out switch in package AC?
A
Raise condensation
B
Improve evaporation
C
Protect the compressor
D
Increase refrigerant flow
Q10220
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Which safety control is manually reset after rectifying the faults in packages AC?
A
LP
B
HP
C
OLP
D
OILP
Q10221
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Which safety switch deactivates the compressor motor circuit if suction pressure falls below the safe limit in package AC?
A
Selector switch
B
Low pressure switch
C
High pressure switch
D
Dual pressure switch
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