A. case iron
B. carbon
C. silicon steel
D. stainless steel
✅ The correct answer is option C.
Electrical Engineering MCQs
Temperature of the stator winding of a three phase induction motor is obtained by___________?
A. resistance rise method
B. thermometer method
C. embedded temperature method
D. all above methods
✅ The correct answer is option D.
Which quantity consists of a unit 1KWh ?
A. Energy
B. Time
C. Power
D. Charge
✅ The correct answer is option A.
An SCR is sometimes called ____________?
A. Triac
B. Diac
C. Unijunction transistor
D. Thyristor
✅ The correct answer is option D.
Insertion of resistance in the rotor of an induction motor to develop a given torque?
A. decreases the rotor current
B. increases the rotor current
C. rotor current becomes zero
D. rotor current rernains same
✅ The correct answer is option D.
Is a cable is to be designed for use on 1000 kV, which insulation would you prefer ____________?
A. Polyvinyle chloride
B. Vulcanised rubber
C. Impregnated paper
D. Compressed SFe gas
✅ The correct answer is option D.
Which of the following has no units?
A. Permeability
B. Moment of a magnet
C. Magnetic susceptibility
D Permittivity
✅ The correct answer is option C.
In induction motor, percentage slip depends on__________?
A. supply frequency
B. supply voltage
C. copper losses in motor
D. none of the above
✅ The correct answer is option C.
The frame of an induction motor is usually made of____________?
A. silicon steel
B. cast iron
C. aluminium
D. bronze
✅ The correct answer is option B.
In an SCR circuit, the angle of conduction can be changed by__________________?
A. Changing anode voltage
B. Changing gate voltage
C. Reverse biasing the gate
D. None of the above
✅ The correct answer is option B.