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: A digital multimeter measures
A) Voltage and resistance only
B) Multiple electrical quantities
C) Only current
D) Mechanical forces
✅ Correct Answer: B
Explanation: DMMs can measure voltage, current, resistance, etc.
Q: Electrical energy is measured in
A) Ampere-hours
B) Watts
C) Joules
D) Watt-hours
✅ Correct Answer: D
Explanation: Watt-hours (Wh) measure the amount of electrical energy used.
Q: The SI unit of magnetic flux is
A) Gauss
B) Weber
C) Tesla
D) Henry
✅ Correct Answer: B
Explanation: Weber (Wb) is the standard unit for magnetic flux.
Q: A current of 1 A means
A) 1 coulomb/second
B) 1 volt/second
C) 1 electron/second
D) 1 ohm/second
✅ Correct Answer: A
Explanation: 1 Ampere = 1 Coulomb of charge passing a point per second.
Q: For maximum power transfer, load resistance must be
A) Equal to source
B) Greater than source
C) Less than source
D) Infinite
✅ Correct Answer: A
Explanation: Maximum power is transferred when load resistance equals source resistance.
Q: Voltage across a short circuit is
A) Moderate
B) Very high
C) Cannot be determined
D) Zero
✅ Correct Answer: D
Explanation: A short circuit has negligible resistance, so voltage across it is zero.
Q: A parallel circuit has the same
A) Inductance in all wires
B) Current through each branch
C) Resistance across all components
D) Voltage across each branch
✅ Correct Answer: D
Explanation: In parallel circuits, voltage remains the same across all branches.
Q: Main function of an inverter is to
A) Control power factor
B) Convert AC to DC
C) Increase resistance
D) Convert DC to AC
✅ Correct Answer: D
Explanation: Inverters convert DC input to AC output.
Q: When two resistors are in series, their total resistance is
A) Equal to smallest
B) Greater than each
C) Zero
D) Less than each
✅ Correct Answer: B
Explanation: In series, resistances add up.
Q: Resonance in RLC circuit occurs when
A) XL < XC
B) XL > XC
C) XL = XC
D) R = L
✅ Correct Answer: C
Explanation: Resonance occurs when inductive and capacitive reactances are equal.