Explore topic-wise MCQs in Electric Drives.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Electric Drives knowledge and support exam preparation. Choose a topic below to get started.

1.

Calculate the De-rating factor if the string efficiency is 5 %.

A. 0.95
B. .55
C. .65
D. .85
Answer» B. .55
2.

Calculate peak-peak voltage if Vmax=0 V and Vmin=9 V.

A. -5 V
B. -6 V
C. -9 V
D. -10 V
Answer» D. -10 V
3.

Full form of BHEL is ____________

A. Bharat Heavy Electronics Limited
B. Bharat Heavy Electrical Limited
C. Bharat Hero Electronics Limited
D. Busy Hero Electrical Limited
Answer» C. Bharat Hero Electronics Limited
4.

The power factor of a WRIM generally is ___________

A. .1-.2
B. .6-.8
C. .3-.4
D. .5-.7
Answer» E.
5.

Who invented the first Solar car?

A. Ian Bell
B. Trent Boult
C. Jon Woakes
D. William G. Cobb
Answer» E.
6.

When was the first solar cell invented?

A. 1950
B. 1954
C. 1965
D. 1952
Answer» C. 1965
7.

Who made the first solar cell?

A. Gerald Pearson
B. Tim Bell
C. Tim Cook
D. Nicola Tesla
Answer» B. Tim Bell
8.

Full form of SSS is ____________

A. Saur Sujala Yojana
B. Saur Solar Yojana
C. Solar Sun Yojana
D. Sun Sujala Yojana
Answer» B. Saur Solar Yojana
9.

Which of the relationship is correct in Permanent magnet DC motor?

A. E ∝ (N)2
B. E ∝ (N)0
C. E ∝ N
D. E2 ∝ N
Answer» D. E2 ∝ N
10.

Full form of ICE is ____________

A. Internal Combustion Engine
B. International Combustion Engine
C. Iterative Combustion Engine
D. Iterative Commercial Engine
Answer» B. International Combustion Engine
11.

Calculate Fill factor using the data: Pmax=5 W, Voc=5 V, Isc=1 A.

A. 5
B. 3
C. 2
D. 1
Answer» E.
12.

Which of the relationship is correct in Permanent magnet DC motor?a) T ∝ (Ia)2b) T ∝ (I

A. T ∝ (Ia)2
B. T ∝ (Ia)0
C. T ∝ Ia
D. T2 ∝ Ia
Answer» D. T2 ∝ Ia
13.

The output of the Solar panel is DC.

A. True
B. False
Answer» B. False
14.

There are four types of Water pumps.

A. True
B. False
Answer» C.
15.

The output power of the centrifugal pump is proportional to the _________ of the speed.

A. Square
B. Cube
C. Square-root
D. Cube-root
Answer» C. Square-root