Electric Traction Objective Type Questions - Set 01 - ObjectiveBooks

Electric Traction Objective Type Questions - Set 01

Practice Test: Question Set - 01

1. In a steam locomotive electric power is provided through
    (A) Overhead wire
    (B) Battery system
    (C) Small turbo-generator
    (D) Diesel engine generator

2. The steam engine provided on steam locomotives is
    (A) Single acting condensing type
    (B) Single acting non-condensing type
    (C) Double acting condensing type
    (D) Double acting non-condensing type

3. For given maximum axle load tractive efforts of AC. locomotive will be
    (A) Less than that of D.C. locomotive
    (B) More than that of D.C. locomotive
    (C) Equal to that of D.C. locomotive
    (D) None of the above

4. The rate of acceleration on sub-urban or urban services is restricted by the consideration of
    (A) Engine power
    (B) Track curves
    (C) Passenger Discomfort
    (D) Track size

5. The resistance encountered by a train in motion is on account of
    (A) Resistance offered by air
    (B) Friction at the track
    (C) Friction at various parts of the rolling stock
    (D) All of the above

6. 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

7. The return circuit for tram cars is through
    (A) Neutral wire
    (B) Rails
    (C) Cables
    (D) Common earthing

8. Which of the following happens in Kando system?
    (A) Three phase A.C. is converted into D.C.
    (B) Single phase A.C. is converted into D.C.
    (C) Single phase supply is converted into three phase system
    (D) None of the above

9. The braking retardation is usually in the range
    (A) 0.15 to 0.30 km phps
    (B) 0.30 to 0.6 km phps
    (C) 0.6 to 2.4 km phps
    (D) 3 to 5 km phps

10. Automatic signaling is used for which of the following trains?
    (A) Mail and express trains
    (B) Superfast trains
    (C) Suburban and Urban electric trains
    (D) All trains

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