COMPRESSOR AND MOTORS - Quiz

1) 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

2) 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

3) 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

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

Running winding Common winding Starting winding Running capacitor

5) What is the reason for poor compression?

Less clearance volume Scratches on the piston surface Lapped valve plate and reed seat Good lubrication on the moving parts