Electrical Engineering MCQs
Electrical Engineering MCQs for PPSC, FPSC, NTS, and competitive exams cover power systems, electronics, circuits, machines, and electromagnetism. Practice these questions to master concepts, improve time management, and excel in electrical engineering tests in Pakistan.
Q: The RMS value of AC current is
A) Double peak
B) 0.5 of peak
C) 0.707 of peak
D) Equal to peak
Q: A fuse protects against
A) Reverse polarity
B) Under voltage
C) Overcurrent
D) High power factor
Q: A zener diode is mainly used for
A) Switching
B) Rectification
C) Current amplification
D) Voltage regulation
Q: Inductors oppose changes in
A) Current
B) Resistance
C) Frequency
D) Voltage
Q: Alternating current changes direction
A) Constantly
B) Never
C) Once per second
D) Randomly