In repulsion motor direction of rotation of motor____________?
A. Is opposite to that of brush shift
B. Is the same as that of brush shift
C. Is independent of brush shift
A centrifugal switch is used to dis- connect ‘starting winding when motor has___________?
A. Run for about 1 minute
B. Run for about 5 minutes
C. Picked up about 50 to 70 per cent of rated speed
D. Picked up about 10 to 25 per cent of rated speed
If a particular application needs high speed and high starting torque, then which of the following motor will be preferred ?
A. Universal motor
B. Shaded pole type motor
C. Capacitor start motor
D. Capacitor start and run motor
The largest helicopter in the world is__________?
A. Ch-47 chinook
B. Hughes yoh-6a
C. Robinson r44
D. Mil mi-26