Electrical Engineering MCQ Questions and Answers
Electrical Engineering MCQ questions with answers are crucial for candidates preparing for exams like GATE, SSC JE, and NTPC. These aptitude questions and answers cover circuits, machines, transformers, and power systems. Practicing aptitude test questions enhances conceptual clarity and quick problem-solving ability. With solutions explained in simple terms, these questions help learners identify key patterns and improve exam performance. Download free aptitude questions with solutions PDF and start your practice to excel in electrical engineering competitive exams and campus placements.
Electrical Engineering MCQ
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37 questions
11. A wave-trap is used at the termination of a HVAC overhead line to a station switchyard to
- Prevent the transformer magnetising harmonics from reaching the overhead line
- Damp the incoming surge waves from the overhead lines
- Attenuate sub-harmonic oscillations
- Provide for carrier communication
12. A circular loop has its radius increasing at a rate of 2 m/s The loop Is placed perpendicular to a constant magnetic field of 0.1 Wb/m 2. When the radius of the loop is m, the emf induced in the loop will be
- 0.8 ?V
- 0.4 ?V
- 0.2?V
- zero
13. A type I superconductor maintained, at a temperature T < Tc is subjected to a magnetic field H< Hc. The superconductor will exhibit
- perfect diamagnetism
- partial diamagnetism
- perfect paramagnetism
- partial paramagnetism
14. The magnetic susceptibility of a paramagnetic material is
- less than zero
- less than one but positive
- greater than one
- equal to zero
15. Magnetostriction is a phenomenon whereby the magnetisation of a ferromagnetic material leads to a change in
- relative permeability
- physical dimensions
- spontaneous magnetisation
- magnetic susceptibility
16. Consider the following statements: I: Any function in ‘s’ which can be expressed as a ratio of any two arbitrary polynomials In ‘s’ can be released as a driving —point function of a passive network II: Any function in ‘s’ which can be expressed as a ratio of two arbitrary polynomials in ‘s’, Is positive real function.Of these statements
- both I and II are true
- I is true but II is false
- both I and II are false
- I is false but II is true
18. A system is represented by dy/dt+ 2y =4t u(t) The ramp component in the forced response will be
- t u(t)
- 2t u(t)
- 3t u(t)
- 4t u(t)
19. The Laplace transform of the function i(t) is I(s) = (10s+4)/(s(s+1)(s2 +4s+5)) Its final value will be
- 4/5
- 5/4
- 4
- 5
20. The limiting errors of measurement of power consumed b and the current passing through a a resistance are + 1.5% and ± 1% respectively. The limiting error of measurement of resistance will then be
- ± 0.5%
- ± 1.0%
- ±2.5%
- ±3%