Three Phase Induction Motors The torque developed by a 3 phase induction motor least depends on Rotor emf Rotor current Rotor power factor Shaft diameter Rotor emf Rotor current Rotor power factor Shaft diameter ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors When a 3-phase induction motor is at no load, the slip is ______ 1 Practically zero 0.5 0.2 1 Practically zero 0.5 0.2 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shaft of an induction motor is made of Stainless steel High speed steel Cast iron Carbon steel Stainless steel High speed steel Cast iron Carbon steel ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Less maintenance troubles are experienced in case of Slip ring induction motor Both (A) and (B) None of these Squirrel cage induction motor Slip ring induction motor Both (A) and (B) None of these Squirrel cage induction motor ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the air gap between the rotor and stator of a 3-phase induction motor is increased, then_______ Leakage reactances are decreased None of the listed here No load current is decreased Leakage reactances are increased Leakage reactances are decreased None of the listed here No load current is decreased Leakage reactances are increased ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Very large 3-phase induction motors (greater than 25 HP) are started _____ Star-delta starting None of the listed here By auto transformer starting Direct on line Star-delta starting None of the listed here By auto transformer starting Direct on line ANSWER DOWNLOAD EXAMIANS APP
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