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MCQs

Total Questions : 323 | Page 29 of 33 pages
Question 281. Speed-time curve of main line service differs from those of urban and suburban services on following account_______________?
  1.    it has longer free running period
  2.    it has longer coasting period
  3.    accelerating and braking periods are comparatively smaller
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 282. The specific energy consumption of a train depends on which of the following ?
  1.    Acceleration and retardation
  2.    Gradient
  3.    Distance covered
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 283. Co-efficient of adhesion is________________-?
  1.    high in case of D.C. traction than in the case of AC. traction
  2.    low in case of D.C. traction than in the case of AC. traction
  3.    equal in both AC. and D.C. traction
  4.    any of the above
 Discuss Question
Answer: Option B. -> low in case of D.C. traction than in the case of AC. traction
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 284. The rate of acceleration on suburban orurban services is restricted by the consideration of______________?
  1.    Engine power
  2.    Track curves
  3.    Passenger Discomfort
  4.    Track size
 Discuss Question
Answer: Option C. -> Passenger Discomfort
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 285. Quadrilateral speed-time curve pertains to which of the following services ?
  1.    Main line service
  2.    Urban service
  3.    Sub-urban service
  4.    Urban and sub-urban service
 Discuss Question
Answer: Option D. -> Urban and sub-urban service
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 286. The normal value of adhesion friction is______________?
  1.    0.12
  2.    0.25
  3.    0.40
  4.    0.75
 Discuss Question
Answer: Option B. -> 0.25
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 287. Which of the following is the disadvantage of electric traction over other systems of traction ?
  1.    Corrosion problems in the under-ground pipe work
  2.    Short time power failure interrupts traffic for hours
  3.    High capital outlay in fixed installations beside route limitation
  4.    Interference with communication lines
  5.    All of the above
 Discuss Question
Answer: Option C. -> High capital outlay in fixed installations beside route limitation
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 288. Which of the following braking systems is used on steam locomotives ?
  1.    Hydraulic system
  2.    Pneumatic system
  3.    Vacuum system
  4.    None of the above
 Discuss Question
Answer: Option C. -> Vacuum system
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 289. The friction at the track is proportional to________________?
  1.    1/speed
  2.    l/(speed)2
  3.    speed
  4.    none of the above
 Discuss Question
Answer: Option C. -> speed
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 290. In main line service as compared to urban and suburban service______________?
  1.    distance between the stops is more
  2.    maximum speed reached is high
  3.    acceleration and retardation rates are low
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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