Electric Traction MCQ Questions & Answers

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Coefficient of adhesion reduces due to the presence of which of the following?

A) Sand on rails B) Dew on rails C) Oil on the rails D) Both (B) and (C)

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Long distance railways use which of the following?

A) 200 V D.C. B) 25 kV single phase A.C. C) 25 kV two phase A.C. D) 25 kV three phase A.C.

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The specific energy consumption of a train depends on which of the following?

A) Acceleration and retardation B) Gradient C) Distance covered D) All of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The pulsating torque exerted by steam locomotives causes which of the following?

A) Jolting and skidding B) Hammer blow C) Pitching D) All of the above

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Coefficient of adhesion is

A) High in case of D.C. traction than in the case of AC. traction B) Low in case of D.C. traction than in the case of AC. traction C) Equal in both AC. and D.C. traction D) Any of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which of the following braking systems on the locomotives is costly?

A) Regenerative braking on electric locomotives B) Vacuum braking on diesel locomotives C) Vacuum braking on steam locomotives D) All braking systems are equally costly

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Battery operated trucks are used in

A) Steel mills B) Power stations C) Narrow gauge traction D) Factories for material transportation

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Main traction systems used in India are, those using

A) Electric locomotives B) Diesel engine locomotives C) Steam engine locomotives D) All of the above

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Series motor is not suited for traction duty due to which of the following account?

A) Less current drain on the heavy load torque B) Current surges after temporary switching off supply C) Self relieving property D) Commutating property at heavy load

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Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Specific energy consumption is affected by which of the following factors?

A) Retardation and acceleration values B) Gradient C) Distance between stops D) All of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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Electric Traction MCQ Questions & Answers | Electrical Engineering