⚡Electrical Engineering MCQs
Electrical Engineering MCQs
499 MCQs91
The load cycle for a motor driving a power press will be________________?
Avariable load
Bcontinuous
Ccontinuous but periodical
Dintermittent and variable load
92
Which of the following motors always starts on load ?
AConveyor motor
BFloor mill motor
CFan motor
DAll of the above
93
While selecting an electric motor for a floor mill, which electrical characteristics will be of least significance ?
ARunning characteristics
BStarting characteristics
CEfficiency
DBraking
94
The selection of an electric motor for any application depends on which of the following factors ?
AElectrical characteristics
BMechanical characteristics
CSize and rating of motors
DCost E. All of the above
95
Which of the following motors is preferred for traction work ?
AUniversal motor
BD.
CSynchronous motor
DThree-phase induction motor
96
________________is preferred for automatic drives?
ASquirrel cage induction motor
BSynchronous motors
CWard-Leonard controlled
DAny of the above
97
In ______________ the speed can be varied by changing the position of brushes?
Aslip ring motor
Bschrage motor
Cinduction motor
Drepulsion motor
98
For a motor-generator set which of the following motors will be preferred ?
ASynchronous motor
BSlip ring induction motor
CPole changing induction motor
DSquirrel cage induction motor
99
In ________________ method of staging three phase induction motors the starting voltage is not reduced?
Aauto-transformer
Bstar-delta
Cslip ring
Dany of the above
100
Battery operated scooter for braking uses________________?
Aplugging
Bmechanical braking
Cregenerative braking
Drheostatic braking