1. Single phase motor is preferred due to:
(A) Low price
(B) High efficiency
(C) None of these
(D) Both a & b
2. Single phase motor is commonly used:
(A) In industries
(B) For home appliances
(C) At business places
(D) All of these
3. Single phase capacitor start motor does not start; possible reasons:
(A) Low voltage
(B) Open circuit
(C) Overload
(D) All of these
4. Speed of single phase motor is low; possible reasons:
(A) Short circuit
(B) Open circuit
(C) Low voltage
(D) Load is too low
5. It is such type of motor that runs on both supplies: A.C & D.C:
(A) Induction motor
(B) Synchronous motor
(C) Universal motor
(D) Repulsion motor
6. Single phase motor gets heated up:
(A) Overload
(B) Both a & b
(C) Short circuit in winding
(D) None of these
7. Starting torque of universal motor is low; possible reasons:
(A) Open circuit in field coil
(B) Open circuit in armature winding
(C) None of these
(D) Carbon brushes not set in neutral position
8. How many types of synchronous motor:
(A) 1
(B) 4
(C) 3
(D) 2
9. Reluctance motor is type of:
(A) Single phase synchronous motor
(B) Universal motor
(C) Both a & b
(D) Single phase induction motor
10. Universal motor is also called:
(A) Induction motor
(B) Commutator motor
(C) Synchronous motor
(D) Wound rotor motor