Explore topic-wise MCQs in Electric Drives Questions and Answers.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Electric Drives Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

Calculate the active power in a .8 Ω resistor with 2 A current flowing through it.

A. 2.4 W
B. 3.4 W
C. 2.2 W
D. 3.2 W
Answer» E.
Discussion
2.

The slope of the V-I curve is 16.8°. Calculate the value of resistance. Assume the relationship between voltage and current is a straight line.

A. .324 Ω
B. .301 Ω
C. .343 Ω
D. .398 Ω
Answer» C. .343 Ω
Discussion
3.

100 V, 2 A, 90 rpm separately excited dc motor with armature resistance (Ra) equal to 8 ohms. Calculate back emf developed in the motor when it operates on 3th/4 of the full load. (Assume rotational losses are neglected)

A. 100 V
B. 87 V
C. 88 V
D. 90 V
Answer» D. 90 V
Discussion
4.

Calculate the phase angle of the sinusoidal waveform z(t)=.99sin(4578πt+78π÷78).

A. π÷3
B. 2π
C. π÷7
D. π
Answer» E.
Discussion