Three Phase Induction Motors The air gap between stator and rotor of 3-phase induction motor ranges from ______ 2 cm to 4 cm 0.4 mm to 4 mm 4 cm to 6 cm 1 cm to 2 cm 2 cm to 4 cm 0.4 mm to 4 mm 4 cm to 6 cm 1 cm to 2 cm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The reactance of the rotor circuit of a 3-phase induction motor is maximum at No load Full load Half full load Starting No load Full load Half full load Starting ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shaft of an induction motor is made of Cast iron Carbon steel Stainless steel High speed steel Cast iron Carbon steel Stainless steel High speed steel ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The speed of a squirrel-cage induction motor can be controlled by all of the following except Changing supply frequency Reducing supply voltage Changing number of poles Changing winding resistance Changing supply frequency Reducing supply voltage Changing number of poles Changing winding resistance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If any two phases for an induction motor are interchanged The motor will not run The motor will run in reverse direction The motor will run at reduced speed The motor will burn The motor will not run The motor will run in reverse direction The motor will run at reduced speed The motor will burn ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Less maintenance troubles are experienced in case of Squirrel cage induction motor Slip ring induction motor None of these Both (A) and (B) Squirrel cage induction motor Slip ring induction motor None of these Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP