- (A) bigger
- (B) smaller
- (C) same
- (D) any of the above
Electrical Engineering Mcqs
- (A) magnetic field and rotor rotate in opposite direction
- (B) rotor speed is less than the synchronous speed of the field and are in the same direction
- (C) rotor speed is more than the synchronous speed of the field and are in the same direction
- (D) none of the above
- (A) humming
- (B) hunting
- (C) crawling
- (D) cogging
- (A) pulling the motor directly on line without a starter
- (B) locking of rotor due to harmonics
- (C) starting the motor on load which is more than the rated load
- (D) interchanging two supply phases for quick stopping
- (A) iron losses in stator will be negligible as compared to that in rotor
- (B) iron losses in motor will be neg¬ligible as compared to that in rotor
- (C) iron losses in stator will be less than that in rotor
- (D) iron losses in stator will be more than that in rotor
- (A) windage losses
- (B) copper losses
- (C) transformation ratio
- (D) power scale of circle diagram
- (A) double cage rotor
- (B) wound rotor
- (C) short-circuited rotor
- (D) any of the above
- (A) 730 r.p.m.
- (B) 960 r.p.m.
- (C) 1440 r.p.m.
- (D) 2880 r.p.m.
- (A) stall after sometime
- (B) stall immediately
- (C) continue to run at lower speed without damage
- (D) get heated and subsequently get damaged
- (A) Ball bearings
- (B) Cast iron bearings
- (C) Bush bearings
- (D) None of the above
