__________________ has relatively wider range of speed control?

Related Mcqs:

1. ___________________has least range of speed control?

   A. Slip ring induction motor B. Synchronous motor C. D.C. shunt motor D. Schrage motor...

2. Which of the following motors is preferred when smooth and precise speed control over a wide range is desired ?

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

3. 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...

4. ________________ motor is a constant speed motor?

   A. Synchronous motor B. Schrage motor C. Induction motor D. Universal motor...

5. In a paper mill where constant speed is required________________?

   A. synchronous motors are preferred B. A.C. motors are preferred C. individual drive is preferred D. group drive is preferred...

6. In case of _______________ speed control by injecting e.m.f. in the rotor circuit is possible?

   A. d.c. shunt motor B. schrage motor C. synchronous motor D. slip ring induction motor...

7. In which of the following applications variable speed operation is preferred ?

   A. Exhaust fan B. Ceiling fan C. Refrigerator D. Water pump...

8. In ______________ the speed can be varied by changing the position of brushes?

   A. slip ring motor B. schrage motor C. induction motor D. repulsion motor...

9. 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...

10. The travelling speed of cranes varies from_________________?

    A. 20 to 30 m/s B. 10 to 15 m/s C. 5 to 10 m/s D. 1 to 2.5 m/s...