# Electrical Drive Systems MCQ Questions & Answers

Electrical Drive Systems MCQs : This section focuses on the "Electrical Drive Systems". These Multiple Choice Questions (MCQs) should be practiced to improve the Electrical Drive Systems skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

Calculate the coefficient of friction if the angle of inclination is 0°.

A. 2
B. 1
C. 4
D. 0

Question 2

Calculate the minimum anode current required to turn off SCR if the latching current value is 2 A.

A. 2 A
B. 3 A
C. 4 A
D. 5 A

Question 3

Calculate the value measured by PMMC when a sinusoidal voltage signal V(t)=20sin(?t) is applied to it.

A. 1 V
B. 2 V
C. 6 V
D. 0 V

Question 4

Calculate the value of the coefficient of static friction using the data: F=4 N, Normal force=16 N.

A. 0.24
B. 0.25
C. 0.15
D. 0.14

Question 5

Current Chopping is most severe in which one of the following?

A. Air Blast Circuit Breaker
B. Oil Circuit Breaker
C. Air Break Circuit Breaker
D. Vacuum Circuit Breaker

Question 6

Full form of LSS is ____________

A. Line Surge Suppressors
B. Local Surge System
C. Local Surge Suppressors
D. Line Surge System

Question 7

Full form of MCC is ____________

A. Motor control center
B. Motor counter center
C. Machine control center
D. Motor coil counter

Question 8

Full form of PCC is ____________

A. Producer control center
B. Poor counter center
C. Power control center
D. Power coil counter

Question 9

Full form of PLC is ____________

A. Programmable Logic Controller
B. Programmable Language Controller
C. Peterson Language Counter
D. Programmable Logic Counter

Question 10

Full form of TVS is __________

A. Transient voltage suppression
B. Transient voltage surge
C. Total voltage surge
D. True voltage surge

Question 11

Oil circuit breaker is mainly used in _____________

A. Synchronous machine
B. Induction machine
C. DC machine
D. Transformer

Question 12

The frictional force always acts in the perpendicular direction of motion of the body.

A. True
B. False

Question 13

The power conductor in electric trains is called a contact wire.

A. True
B. False

Question 14

When was the first train built?

A. 1804
B. 1810
C. 1814
D. 1820

Question 15

Who invented the first circuit breaker?

A. Albert Einstein
B. Thomas Edison
C. Nicola Tesla
D. Trent Boult

Question 16

Calculate the minimum anode current required to turn off SCR if the latching current value is 2 A.

A. 2:00 AM
B. 3:00 AM
C. 4:00 AM
D. 5:00 AM