Which of the following single-phase induction motors is generally used in time phonographs ?

Related Mcqs:

1. Which of the following statements regarding single-phase induction motors correct?

   A. It requires only one winding B. It can rotate in one direction only C. It is self-starting D. It is not self-starting...

2. Which of the following single-phase motors is suitable for timing and control purposes ?

   A. Reluctance motor B. Series motor C. Repulsion motor D. Universal motor...

3. Which of the following single-phase motors has relatively poor starting torque ?

   A. Universal motor B. Repulsion motor C. Capacitor motor D. All single phase motors have zero starting torque...

4. The capacitors used in single-phase capacitor motors have no__________?

   A. voltage rating B. dielectric medium C. polarity marking D. definite value...

5. A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will______________?

   A. start and then stop B. start and run slowly C. start and run at rated speed D. not start at all...

6. A single-phase induction motor is__________?

   A. inherently self-starting with high torque B. inherently self-starting with low torque C. inherently non-self-starting with low torque D. inherently non-self-starting with high torque...

7. Single phase induction motor usually operates on__________?

   A. 0.6 power factor lagging B. 0.8 power factor lagging C. 0.8 power factor leading D. unity power factor...

8. After the starting winding of a single phase induction motor is disconnected from supply, it continues to run only on ______________?

   A. running winding B. rotor winding C. field winding D. compensating winding...

9. If a single phase induction motor runs slower than normal, the most likely defect is_____________?

   A. worn bearings B. short-circuit in the winding C. open-circuit in the winding D. none of the above...

10. If starting winding of a single-phase induction motor is left in the circuit, it will____________?

    A. run faster B. spark at light loads C. draw excessive current and overheat D. run slower...