Three Phase Induction Motors The magnetising current drawn by a 3 phase induction motor is about _______ of full load stator current. 10 to 15% 5% 15 to 20 % 30 to 50% 10 to 15% 5% 15 to 20 % 30 to 50% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The starting torque of a 3-phase induction motor is _______ supply voltage. Directly proportional to None of the listed here Independent of Directly proportional to sqaure of Directly proportional to None of the listed here Independent of Directly proportional to sqaure of ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase induction motor is running at 2% slip. If the input to rotor is 1000 W, then mechanical power developed by the motor is _______ 500 W 20 W 980 W 200 W 500 W 20 W 980 W 200 W ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In an induction motor if air gap increased The power factor will be low Copper loss will reduce Windage losses will be more Bearing friction will reduce The power factor will be low Copper loss will reduce Windage losses will be more Bearing friction will reduce ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Slip rings are usually made of Copper Aluminium Phospor bronze Carbon Copper Aluminium Phospor bronze Carbon ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor at stand still resemble those of a transformer whose secondady is _______ Open circuited None of the listed here Short circuited Supplying a variable resistive load Open circuited None of the listed here Short circuited Supplying a variable resistive load ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS