A. Two SCRs in series
B. Two SCRs in parallel
C. Two SCRs in parallel opposition
D. None of the above
✅ The correct answer is option C.
Electrical Engineering
ractice the latest Electrical Engineering MCQs with answers and explanations to prepare for exams, interviews, and job tests. Our question bank covers fundamental and advanced topics such as circuit theory, power systems, electrical machines, electronics, control systems, measurements, digital logic, and communication systems. These Electrical Engineering multiple-choice questions are designed for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and recruitment assessments. Strengthen your technical knowledge and problem-solving skills with our updated and comprehensive Electrical Engineering MCQs
312. In single core cables armouring is not done to________?
A. avoid excessive sheath losses
B. make it flexible
C. either of the above
D. none of the above
✅ The correct answer is option A.
313. Iron losses in a D.C. machine are independent of variations in_____________?
A. speed
B. load
C. voltage
D. speed and voltage
✅ The correct answer is option B.
314. An SCR is turned off when ________________?
A. Anode current is reduced to zero
B. Gate voltage is reduced to zero
C. Gate is reverse biased
D. None of the above
✅ The correct answer is option A.
315. A D.C. series motor is that which______________?
A. has its field winding consisting of thick wire and less turns
B. has a poor torque
C. can be started easily without load
D. has almost constant speed
✅ The correct answer is option A.
316. The low power factor of induction motor is due to___________?
A. rotor leakage reactance
B. stator reactance
C. the reactive lagging magnetizing current necessary to generate the magnetic flux
D. all of the above
✅ The correct answer is option D.
317. The insulation of the cable decreases with__________?
A. the increase in length of the insulation
B. the decrease in the length of the insulation
C. either A. or (b)
D. none of the above
✅ The correct answer is option A.
318. Which quantity should be measured by the voltmeter ?
A. Current
B. Voltage
C. Power
D. Speed
✅ The correct answer is option B.
319. A series generator can self-excite:______________?
A. only if the load current is zero
B. only if the load current is not zero
C. irrespective of the value of load current
D. none of the above
✅ The correct answer is option B.
320. A cable carrying alternating current has__________?
A. hysteresis losses only
B. hysteresis and leakage losses only
C. hysteresis, leakage and copper losses only
D. hysteresis, leakage, copper and friction losses
✅ The correct answer is option B.