Three Phase Induction Motors The number of slip rings on a squirrel cage induction motor is usually One None Two Three One None Two Three ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors When a 3-phase induction motor is at no load, the slip is ______ 0.5 Practically zero 1 0.2 0.5 Practically zero 1 0.2 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The magnetising current drawn by a 3 phase induction motor is about _______ of full load stator current. 5% 30 to 50% 10 to 15% 15 to 20 % 5% 30 to 50% 10 to 15% 15 to 20 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In a double squirrel cage induction motor, the outer cage winding has _______ High resistance None of the listed here High inductance Low resistance High resistance None of the listed here High inductance Low resistance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The speed of a squirrel cage induction motor is changed by None of the listed here Rheostatic control Pole changing Cascade control None of the listed here Rheostatic control Pole changing Cascade control ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The synchronous speed of a 3-phase induction motor having 20 poles and connected to a 50 Hz source is _____ 300 rpm 1000 rpm 1200 rpm 600 rpm 300 rpm 1000 rpm 1200 rpm 600 rpm ANSWER DOWNLOAD EXAMIANS APP
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