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Study MCQ
Refrigeration and Air Conditioning Technician
MULTI SPLIT AC AND CAR AIR CONDITIONING
Set 11
Set 11
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Q10169
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Which material is used for making service valve?
A
Brass
B
Cast iron
C
Aluminium
D
Stainless steel
Q10170
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What is the purpose of providing gas ballast in two stage rotary vacuum pump?
A
Avoid condensation of water vapour
B
Prevent condensation of nitrogen
C
Prevent condensation of dry air
D
Avoid condensation of refrigerant
Q10171
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What is the use of anemometer?
A
Check water flow
B
Measure air flow
C
Produce current
D
Measure voltage
Q10172
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Which insulating material is used in duct work?
A
Wood
B
Plastic
C
Rubber
D
Glass wool
Q10173
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Which device switches ON/OFF the car AC compressor?
A
Crank shaft
B
Blower unit
C
Rotor winding
D
Magnetic clutch
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