A. 200 V
B. 500 V
C. 700 V
D. 1000 V
✅ The correct answer is option D.
Electrical Engineering MCQs
The speed of a D.C. shunt motor more than its full-load speed can be obtained by_____________?
A. decreasing the field current
B. increasing the field current
C. decreasing the armature current
D. increasing the armature current
✅ The correct answer is option A.
For starting a D.C. motor a starter is required because___________?
A. it limits the speed of the motor
B. it limits the starting current to a safe value
C. it starts the motor
D. none of the above
✅ The correct answer is option B.
In a cable, the maximum stress under operating conditions is at___________?
A. insulation layer
B. sheath
C. armour
D. conductor surface
✅ The correct answer is option D.
While applying Fleming’s right-hand rule to And the direction of induced e.m.f., the thumb points towards___________?
A. direction of induced e.m.f.
B. direction of flux
C. direction of motion of the conductor if forefinger points in the direction of generated e.m.f.
D. direction of motion of conductor, if forefinger points along the lines of flux
✅ The correct answer is option D.
An SCR is a solid state equivalent of ______________?
A. Triode
B. Pentode
C. Gas-filled triode
D. Tetrode
✅ The correct answer is option C.
Which of the following are the passive elements?
A. Resistor
B. Bulb
C. Both
D. None of these.
✅ The correct answer is option C.
The resistance of armature winding depends on
A. length of conductor
B. cross-sectional area of the conductor
C. number of conductors
D. all of the above
✅ The correct answer is option D.
A thermistor has_____________?
A. positive temperature coefficient
B. negative temperature coefficient
C. zero temperature coefficient
D. variable temperature coefficient
✅ The correct answer is option C.
An SCR has ___________semiconductor layers?
A. Two
B. Three
C. Four
D. None of the above
✅ The correct answer is option C.