Speed-time curve of main line service differs from those of urban and suburban services on following account_______________?

Related Mcqs:

1. In main line service as compared to urban and suburban service______________?

   A. distance between the stops is more B. maximum speed reached is high C. acceleration and retardation rates are low D. all of the above...

2. The rate of acceleration on suburban orurban service is in the range_________________?

   A. 0.2 to 0.5 km phps B. 1.6 to 4.0 km phps C. 5 to 10 km phps D. 15 to 25 km phps...

3. The rate of acceleration on suburban orurban services is restricted by the consideration of______________?

   A. Engine power B. Track curves C. Passenger Discomfort D. Track size...

4. _______________watt-hours per tonne km is usually the specific energy consumption for suburban services?

   A. 15—20 B. 50—75 C. 120—150 D. 160—200...

5. Quadrilateral speed-time curve pertains to which of the following services ?

   A. Main line service B. Urban service C. Sub-urban service D. Urban and sub-urban service...

6. The voltage used for suburban trains in D.C. system is usually_______________?

   A. 12 V B. 24 V C. 220 V D. 600 to 750 V...

7. Which of the following motors is preferred when quick speed reversal is the main consideration ?

   A. Squirrel cage induction motor B. Wound rotor induction motor E. Synchronous motor D. D.C. motor...

8. An aeroplane of wingspan 10m flies from the equator towards the North Pole. The wings are perpendicular to the vertical component of the earths magnetic field (B = 4×10-5T). At maximum speed an emf of 96mV is induced across the wing tips. The maximum speed of the aeroplane is____________?

   A. 150msec-1 B. 384msec-1 C. 38.4msec-1 D. 200msec-1...

9. The slope of a.c. load line is ______________ that of d.c. load line?

   A. The same as B. More than C. Less than D. None of the above...

10. Specific energy consumption is least in ________________ service?

    A. main line B. urban C. suburban...