A. induction
B. moving coil or iron
C. rectifier
D. electrostatic
✅ The correct answer is option A.
Electrical Engineering MCQs
Vout = 500 mV, and Vin = 1.3 V. The ratio Vout/ Vin expressed in dB is__________?
A. 0 dB
B. 8.30 dB
C. -8.30 dB
D. 0.8 dB
✅ The correct answer is option C.
A series resonant band-stop filter consists of a 68 Ω resistor, a 110 mH coil, and a 0.02 µF capacitor. The internal resistance, RW, of the coil is 4 Ω. Input voltage is 200 mV. Output voltage is taken across the coil and capacitor in series. What is the output voltage magnitude at f0?
A. 1.1 mV
B. 11.1 mV
C. 111 mV
D. 200 mV
✅ The correct answer is option B.
The parallel combination of a 6.8 kΩ resistor and a 10 kΩ resistor is in series with the parallel combination of a 2.2 kΩ resistor and a 1 kΩ resistor. A 100 V source is connected across the circuit. The resistor(s) with the greatest voltage drop is (are)___________?
A. 6.8 kΩ
B. 2.2 kΩ
C. 6.8 kΩ and 10 kΩ
D. 2.2 kΩ and 1 kΩ
✅ The correct answer is option C.
A __________ device prevents the oscillation of the moving system and enables the latter to reach its final position quickly___________?
A. deflecting
B. controlling
C. damping
D. any of the above
✅ The correct answer is option C.
The maximum speed of electronic switch can be _____________operations per second?
A. 104
B. 10
C. 1000
D. 109
✅ The correct answer is option D.
Transistor biasing represents ______________ conditions?
A. a.c
B. d.c
C. both a.c. and d.c
D. none of the above
✅ The correct answer is option B.
Besides a constant speed a synchronous rotor possesses which of the following advantages ?
A. Lower cost
B. Better efficiency
C. High power factor
D. All of the above
✅ The correct answer is option C.
Commercial available medium size machines have a speed range of __________ ?
A. 200 to 400 r.p.m
B. 600 to 1000 r.p.m
C. 1000 to 1500 r.p.m
D. 2000 to 2500 r.p.m
✅ The correct answer is option D.
A Zener diode______________?
A. Is a battery
B. Acts like a battery in the breakdown region
C. Has a barrier potential of 1 V
D. Is forward biased
✅ The correct answer is option B.