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

Related Mcqs:

1. The steam engine provided on steam locomotives is____________?

   A. single acting condensing type B. single acting non-condensing type E. double acting condensing type D. double acting non-condensing type...

2. Which of the following braking systems is used on steam locomotives ?

   A. Hydraulic system B. Pneumatic system C. Vacuum system D. None of the above...

3. The horsepower of steam locomotives is______________?

   A. up to 1500 B. 1500 to 2000 C. 2000 to 3000 D. 3000 to 4000...

4. _______________has the least value of starting torque to full load torque ratio?

   A. D.C. shunt motor B. D.C. series motor C. Squirrel cage induction motor D. Slip ring induction motor...

5. The pulsating d.c. applied to power amplifier causes________________?

   A. Burning of transistor B. Hum in the circuit C. Excessive forward voltage D. None of the above...

6. 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...

7. For which of the following locomotives the maintenance requirements are the least ?

   A. Steam locomotives B. Diesel locomotives C. Electric locomotives D. Equal in all of the above...

8. In case of steam engines the steam pressure is_______________?

   A. 1 to 4 kgf/cm2 B. 5 to 8 kgf/cm2 C. 10 to 15 kgf/cm2 D. 25 to 35 kgf/cm2...

9. For diesel locomotives the range of horsepower is_______________?

   A. 50 to 200 B. 500 to 1000 C. 1500 to 2500 D. 3000 to 5000...

10. The efficiency of diesel locomotives is nearly_______________?

    A. 20 to 25 percent B. 30 to 40 percent C. 45 to 55 percent D. 60 to 70 percent...