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 purely inductive or capacitive circuit is
A) One
B) Unity
C) Negative
D) Zero
Q: The SI unit of magnetic flux density is
A) Weber
B) Henry
C) Farad
D) Tesla
Q: A triac is used to
A) Rectify DC
B) Control AC power
C) Store data
D) Detect voltage
Q: A diode allows current flow
A) Only under DC
B) In one direction
C) In both directions
D) Only under AC
Q: Transformer efficiency increases with
A) Higher temperature
B) Higher frequency
C) Smaller size
D) Lower losses
Q: In a series RLC circuit, resonance occurs when
A) R = 0
B) XL = XC
C) R = XL
D) R = XC
Q: The function of a Zener diode is to
A) Filter noise
B) Rectify current
C) Amplify signal
D) Regulate voltage
Q: Superposition theorem applies to
A) Non-linear circuits
B) All circuits
C) Magnetic circuits
D) Linear circuits
Q: Current through a capacitor
A) Lags voltage
B) Is always zero
C) Equals voltage
D) Leads voltage
Q: A synchronous motor runs at
A) Lower than synchronous speed
B) Variable speed
C) Zero speed
D) Constant speed