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: Transistor is used as a
A) Filter
B) Switch or amplifier
C) Rectifier
D) Sensor
Q: Electrolysis is a process related to
A) Thermal conduction
B) Magnetism
C) Electrical conduction
D) Chemical decomposition
Q: In star connection, line voltage is
A) 3 × phase voltage
B) √3 × phase voltage
C) Half phase voltage
D) Equal to phase voltage
Q: An ideal voltage source has
A) High resistance
B) Zero voltage
C) Infinite current
D) Zero resistance
Q: Power in a three-phase system is calculated using
A) P = I^2 × R
B) P = √3 × VL × IL × pf
C) P = V × pf
D) P = VL × IL