1000+ Electric Traction MCQ Questions and Answers Pdf - 1

Question: 1

In tramways, which of the following motors is used?

(A) A.C. single phase capacitor start motor

(B) A.C. three phase motor

(C) D.C. shunt motor

(D) D.C. series motor

Ans: D

D.C. series motor

Question: 2

The speed of a superfast train is

(A) 60 kmph

(B) 80 kmph

(C) 100 kmph

(D) more than 100 kmph

Ans: D

more than 100 kmph

Question: 3

Which of the following is the advantage of electric braking?

(A) more heat is generated during braking

(B) it is instantaneous

(C) motor continues to remain loaded during braking

(D) it avoid wear of track

Ans: D

it avoid wear of track

Question: 4

Locomotives with monometer bogies have

(A) low co-efficient of adhension

(B) lot of skidding

(C) suitability for passanger as well as freight services

(D) uneven distribution of tractive effect

Ans: C

suitability for passanger as well as freight services

Question: 5

______ is the method of braking in which motor armature remains connected to the supply and draws power from it producing torque opposite to the direction of motion.

(A) Plugging

(B) Regerative braking

(C) Rheostatic braking

(D) None of these

Ans: A

Plugging

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