Torque developed by a single phase induction motor at starting is_____________?

Related Mcqs:

1. 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...

2. 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...

3. The rotor developed by a single-phase motor at starting is___________?

   A. more than i.he rated torque B. rated torque C. less than the rated torque D. zero...

4. 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...

5. 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...

6. The starting winding of a single-phase motor is placed in_________?

   A. armature B. field C. rotor D. stator...

7. Starting winding of a single phase motor of a refrigerator is disconnected from the circuit by means of a___________?

   A. magnetic relay B. thermal relay C. centrifugal switch D. none of the above...

8. The power factor of a single-phase induction motor is usually?

   A. lagging B. always leading C. unity D. unity to 0.8 leading...

9. 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...

10. 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...