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MRAC
MRAC Set-1
Compressor and Motors
25

Compressor and Motors MCQ with Answers

25) How the difference between the synchronous speed and the actual rotor speed is specified?

Lead

Lag

Slip

Trip

Answer is:

Slip

Compressor and Motors MCQ with Answers

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Related Compressor and Motors MCQ with Answers

26) What is the use of capacitor in PSC operated induction motor?

Decrease the starting torque

Cancel the starting torque

Improve the power factor

Decrease the power factor

Answer is:

Improve the power factor

27) Where the refrigerant vapour is compressed in scroll compressor?

Fixed and reciprocating scroll

Between fixed and orbiting scrolls

Crank and connecting rod

Eccentric and cylinder

Answer is:

Between fixed and orbiting scrolls

28) What is the use of suction baffle in a scroll compressor?

Reduce noise of compressor

Increase noise of compressor

Reduce capacity of compressor

Allow liquid to enter into compressor

Answer is:

Reduce noise of compressor

29) Which is disconnected by centrifugal switch is RSIR motor?

Running winding

Common winding

Starting winding

Running capacitor

Answer is:

Starting winding

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