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Mechanic Motor Vehicle (MMV)
AIR CONDITIONING SYSTEM
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1) What is the boiling point of refrigerant R-134a?
20.5 Degree Centigrade
22.0 Degree Centigrade
26.5 Degree Centigrade
27.8 Degree Centigrade
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Correct Answer: 26.5 Degree Centigrade
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1) What is the boiling point of refrigerant R-134a?
20.5 Degree Centigrade
22.0 Degree Centigrade
26.5 Degree Centigrade
27.8 Degree Centigrade
2) What should be the high air flow rate permitted while doing performance checking in automobile AC system?
4 kg per min
6 kg per min
8 kg per min
10 kg per min
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Correct Answer: 8 kg per min
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2) What should be the high air flow rate permitted while doing performance checking in automobile AC system?
4 kg per min
6 kg per min
8 kg per min
10 kg per min
3) Which is not the part of servo motor assembly?
Gear reduction unit
Normal DC motor
Position sensor
Expansion valve
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Correct Answer: Expansion valve
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3) Which is not the part of servo motor assembly?
Gear reduction unit
Normal DC motor
Position sensor
Expansion valve
4) How much DC supply voltage required for servo motor?
4 V to 8 V
4.8 V to 6 V
3.5 V to 8 V
5V to 7.5 V
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Correct Answer: 4.8 V to 6 V
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4) How much DC supply voltage required for servo motor?
4 V to 8 V
4.8 V to 6 V
3.5 V to 8 V
5V to 7.5 V
5) Which wire of servo motor connected to power supply?
White
Yellow
Black
Red
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Correct Answer: Red
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5) Which wire of servo motor connected to power supply?
White
Yellow
Black
Red
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