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Study MCQ
Refrigeration and Air Conditioning Technician
PACKAGE AIR CONDITIONER
Set 8
Set 8
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Q10232
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Why the water flow switch is bypassed to test the HP control switch in package AC?
A
Make the unit not to trip
B
Raise the oil pressure more
C
Stopping the unit immediately
D
Lower the head pressure in compressor
Q10233
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Which parameter of heater element is increased in OLP due to hot compressor dome?
A
Voltage
B
Resistance
C
Capacitance
D
Magnetic field
Q10234
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What is the effect on compressor motor if water pressure switch trips out in package AC?
A
Does not stop
B
Stops working
C
Does not start
D
Motor burns out
Q10235
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What is the effect on adjusting the thermostat differential too close in package AC?
A
Unit does not start
B
Normal cooling effect
C
Unit runs continuously
D
Unit starts and stops frequently
Q10236
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What is the reason for switching contacts get carbonised in package AC electrical wiring?
A
Humidity
B
Quality is bad
C
Loose connections
D
Too tight connection contacts
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