Electrical Engineering MCQs
Electrical Engineering MCQs are essential for aspirants preparing for engineering exams and job tests conducted by PPSC, FPSC, NTS, and other testing services. This section includes questions from power systems, basic electronics, circuit analysis, machines, measurements, and electromagnetism. Whether you're revising for an academic test or preparing for professional assessments, these multiple-choice questions are tailored to cover the entire Electrical Engineering syllabus. The content is designed to reflect current trends in competitive exams and industry requirements. Practicing these MCQs will help you strengthen your concepts, improve time management, and increase your chances of scoring high in electrical engineering exams in Pakistan.
Q: Power factor in an ideal purely resistive circuit is
A) Negative
B) Zero
C) One
D) Infinity
Q: Inductive reactance increases with
A) Increasing resistance
B) Decreasing frequency
C) Increasing frequency
D) Constant voltage
Q: A three-phase system is preferred over single-phase because it
A) Has less current
B) Provides constant power
C) Requires fewer wires
D) Is simpler
Q: Current in a conductor is due to
A) Electron flow
B) Hole movement
C) Neutron movement
D) Proton flow
Q: Power in a resistive circuit is calculated as
A) V/I
B) VI
C) V^2/I
D) I^2/R
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