Electrical Machines In a transformer zero voltage regulation is achieved at a load power factor which is lagging unity leading zero lagging unity leading zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a star - delta starting of an IM resistance is inserted in the rotor. applied voltage per stator phase is 57.7 % of a line volt line voltage is 57.7 % of stator voltage. reduced voltage is applied to the stator. resistance is inserted in the rotor. applied voltage per stator phase is 57.7 % of a line volt line voltage is 57.7 % of stator voltage. reduced voltage is applied to the stator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Flux density under leading pole tips in case of generator will increase None of these decrease either increase or decrease increase None of these decrease either increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A transformer has hysteresis loss of 30 W, at 240 V, 60 Hz. The hysteresis loss at 200 V, 50 Hz will be 25 W. 36 W. 30 W. 28 W. 25 W. 36 W. 30 W. 28 W. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor used in hair dryers? Shaded pole IM. Synchronous motors. Cage induction motor. Split phase IM. Shaded pole IM. Synchronous motors. Cage induction motor. Split phase IM. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Width of a carbon brush should be equal to the width more than 3 commutator segment. the width of the 2 to 3 commutator segment. the width of the 1 to 2 commutator segment. less than the width of commutator segment. the width more than 3 commutator segment. the width of the 2 to 3 commutator segment. the width of the 1 to 2 commutator segment. less than the width of commutator segment. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS