PACKAGE AIR CONDITIONER

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Refrigeration and Air Conditioning Technician
PACKAGE AIR CONDITIONER
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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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