⚡Electrical Engineering MCQs
Electrical Engineering MCQs
499 MCQs61
__________________ has relatively wider range of speed control?
ASynchronous motor
BShip ring induction motor
Cshunt motor
DD.
62
Rotor of a motor is usually supported on ___________________ bearings?
Aball or roller
Bneedle
Cbush
Dthrust
63
The size of an excavator is usually expressed in terms of_________________?
A‘crowd’ motion
Bangle of swing
Ccubic metres
Dtravel in metres
64
_________________method of starting a three phase induction motor needs six terminals ?
AStar-delta
BResistance starting
CAuto-transformer
DNone of the above
65
Which of the following is essentially needed while selecting a motor ?
APulley
BStarter
CFoundation pedal
DBearings
66
In a paper mill where constant speed is required________________?
Asynchronous motors are preferred
BA.
Cindividual drive is preferred
Dgroup drive is preferred
67
For blowers which of the following motor is preferred ?
AD.
BD.
CSquirrel cage induction motor
DWound rotor induction motor
68
Reluctance motor is a________________?
Avariable torque motor
Blow torque variable speed motor
Cself starting type synchronous motor
Dlow noise, slow speed motor
69
A reluctance motor_________________?
Ais provided with slip rings
Brequires starting gear
Chas high cost
Dis compact
70
___________________is preferred for synthetic fibre mills?
ASynchronous motor
BReluctance motor
CSeries motor
DShunt motor