Three Phase Induction Motors DOL starting of induction motors is usually restricted to High speed motors Low horsepower motors High horsepower motors Variable speed motors High speed motors Low horsepower motors High horsepower motors Variable speed motors ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shaft of an induction motor is made of Stainless steel Carbon steel High speed steel Cast iron Stainless steel Carbon steel High speed steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The torque developed by a 3 phase induction motor least depends on Rotor emf Rotor power factor Shaft diameter Rotor current Rotor emf Rotor power factor Shaft diameter Rotor current ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the frequency of 3-phase supply to the stator of a 3-phase induction motor is increased, then synchronous speed ______ None of the listed here Remains unchanged Is increased Is decreased None of the listed here Remains unchanged Is increased Is decreased ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 3 phase induction motor is running at a slip S, then approximate efficiency of the motor is ______ 1-S None of the listed here S-1 1+S 1-S None of the listed here S-1 1+S ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The efficiency of an induction motor can be expected to be nearly 60 to 90% 95 to 98 % 99% 80 to 90% 60 to 90% 95 to 98 % 99% 80 to 90% ANSWER DOWNLOAD EXAMIANS APP
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