Menu
Home / EEE / Electric Traction :: section-1

EEE :: Electric Traction

Electric Traction - section-1
Electric Traction - Section-2
  1. Coefficient of adhesion reduces due to the presence of which of the following?

    2. A.

     Sand on rails
    B.

     Dew on rails
    C.

     Oil on the rails
    D.

     Both (B) and (C)

    View Answer

    Workspace

    Discuss Discuss in Forum

  2. Long distance railways use which of the following?

    3. 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.

    View Answer

    Workspace

    Discuss Discuss in Forum

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

    4. A.

     Acceleration and retardation
    B.

     Gradient
    C.

     Distance covered
    D.

     All of the above

    View Answer

    Workspace

    Discuss Discuss in Forum

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

    5. A.

     Jolting and skidding
    B.

     Hammer blow
    C.

     Pitching
    D.

     All of the above

    View Answer

    Workspace

    Discuss Discuss in Forum

  5. Coefficient of adhesion is

    6. 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

    View Answer

    Workspace

    Discuss Discuss in Forum

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

    7. 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

    View Answer

    Workspace

    Discuss Discuss in Forum

  7. Battery operated trucks are used in

    8. A.

     Steel mills
    B.

     Power stations
    C.

     Narrow gauge traction
    D.

     Factories for material transportation

    View Answer

    Workspace

    Discuss Discuss in Forum

  8. Main traction systems used in India are, those using

    9. A.

     Electric locomotives
    B.

     Diesel engine locomotives
    C.

     Steam engine locomotives
    D.

     All of the above

    View Answer

    Workspace

    Discuss Discuss in Forum

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

    10. 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

    View Answer

    Workspace

    Discuss Discuss in Forum

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

    11. A.

     Retardation and acceleration values
    B.

     Gradient
    C.

     Distance between stops
    D.

     All of the above

    View Answer

    Workspace

    Discuss Discuss in Forum

Java Programming Questions and Answers Interview Questions and Answers