101. The commercial sources of energy are____________?
A. solar, wind and biomass
B. fossil fuels, hydropower and nuclear energy
C. wood, animal wastes and agriculture wastes
D. none of the above
✅ The correct answer is option B.
Electrical Engineering
ractice the latest Electrical Engineering MCQs with answers and explanations to prepare for exams, interviews, and job tests. Our question bank covers fundamental and advanced topics such as circuit theory, power systems, electrical machines, electronics, control systems, measurements, digital logic, and communication systems. These Electrical Engineering multiple-choice questions are designed for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and recruitment assessments. Strengthen your technical knowledge and problem-solving skills with our updated and comprehensive Electrical Engineering MCQs
102. A certain common-source JFET has a voltage gain of 10. If the source bypass capacitor is removed, ______________?
A. the voltage gain will increase
B. the transconductance will increase
C. the voltage gain will decrease
D. the Q-point will shift
✅ The correct answer is option C.
103. The change in flux linkages can be caused in which of the following ways ?
A. The flux is constant with respect to time and is stationary and the coil moves through it
B. The coil is stationary with respect to flux and the flux varies in magnitude with respect to time
C. Both the changes mentioned above occur together, i.e., the coil moves through a time varying field
D. All of the above
✅ The correct answer is option D.
104. An RL low-pass filter consists of a 5.6 mH coil and a 3.3 kΩ resistor. The output voltage is taken across the resistor. The circuit’s critical frequency is______________?
A. 93.8 kHz
B. 93.8 Hz
C. 861 Hz
D. 86.12 kHz
✅ The correct answer is option A.
105. Systematic errors are_________________?
A. instrumental errors
B. environmental errors
C. observational errors
D. all of the above
✅ The correct answer is option D.
106. 1 db corresponds to_____________change in power level?
A. 50%
B. 35%
C. 26%
D. 22%
✅ The correct answer is option C.
107. If biasing is not done in an amplifier circuit, it results in________________?
A. Decrease in the base current
B. Unfaithful amplification
C. Excessive collector bias
D. None of the above
✅ The correct answer is option B.
108. The heat dissipated by from a surface depends upon its temperature and its characteristics like colour, roughness etc?
A. conduction
B. convection
C. radiation
D. any of the above
✅ The correct answer is option C.
109. Materials exhibiting zero value of resistivity are known as ____________ ?
A. conductors
B. semiconductors
C. insulators
D. superconductors
✅ The correct answer is option D.
110. The most important consideration in power amplifier is __________________?
A. Biasing the circuit
B. Collector efficiency
C. To keep the transformer cool
D. None of the above
✅ The correct answer is option B.