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
Showing 10 of
37 questions
21. The frequency of DC current
- Equal to voltage magnitude
- 0
- Double of AC frequency
- 50 HZ
22. The current flowing in a purely inductive circuit of 30 mH on application of 230 V, 50 Hz single phase supply is 24.4 A. If the frequency of the applied voltage is increased to 100 Hz the current flowing in the same circuit will be
- 24.4 A
- 48.8 A
- 12.2 A
- 6.1 A
23. Find the total resistance when two 3 Ohm resistances are connected in parallel.
- 1.11 ohms
- 1.5 ohms
- 0.707 ohms
- 1.23 ohms
25. Off-line converter, SMPS has
- AC input and dc output
- DC input and dc output
- AC input and ac output
- None
26. Filter circuits are constructed by means of
- Diode
- Resistors
- Transformers
- Capacitor and inductors
27. Resistance of the diode is decreased when
- Forward biased
- Reverse biased
- Both forward and reverse biased
- Either a or b
28. In earlier time is used for voltage regulation.
- Diode
- Transistors
- Vacuum tubes and glow bulbs
- SMPS
29. is the equipment used during power failure.
- Rectifier
- Voltage regulators
- UPS
- SMPS