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Study MCQ
Refrigeration and Air Conditioning Technician
COMPRESSOR AND MOTORS
Set 6
Set 6
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Q9871
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What is the use of capacitor in PSC operated induction motor?
A
Decrease the starting torque
B
Cancel the starting torque
C
Improve the power factor
D
Decrease the power factor
Q9872
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Where the refrigerant vapour is compressed in scroll compressor?
A
Fixed and reciprocating scroll
B
Between fixed and orbiting scrolls
C
Crank and connecting rod
D
Eccentric and cylinder
Q9873
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What is the use of suction baffle in a scroll compressor?
A
Reduce noise of compressor
B
Increase noise of compressor
C
Reduce capacity of compressor
D
Allow liquid to enter into compressor
Q9874
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Which is disconnected by centrifugal switch is RSIR motor?
A
Running winding
B
Common winding
C
Starting winding
D
Running capacitor
Q9875
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What is the reason for poor compression?
A
Less clearance volume
B
Scratches on the piston surface
C
Lapped valve plate and reed seat
D
Good lubrication on the moving parts
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