Three Phase Induction Motors When the rotor of a 3-phase induction motor is blocked, the slip is _____ 0 0.1 0.5 1 0 0.1 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shaft of an induction motor is made of Stainless steel High speed steel Carbon steel Cast iron Stainless steel High speed steel Carbon steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The injected e.m.f. in the rotor of induction motor must have The same frequency as the slip frequency The same phase as the rotor e.m.f. Zero frequency High value for the satisfactory speed control The same frequency as the slip frequency The same phase as the rotor e.m.f. Zero frequency High value for the satisfactory speed control ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If any two phases for an induction motor are interchanged The motor will run in reverse direction The motor will run at reduced speed The motor will not run The motor will burn The motor will run in reverse direction The motor will run at reduced speed The motor will not run The motor will burn ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors As load on an induction motor goes on increasing Its power factor goes on increasing up to full load and then it falls again Its power factor goes on increasing even after full load Its power factor goes on decreasing Its power factor remains constant Its power factor goes on increasing up to full load and then it falls again Its power factor goes on increasing even after full load Its power factor goes on decreasing Its power factor remains constant ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Slip of an induction motor is negative when Rotor speed is more than the synchronous speed of the field and are in the same direction Rotor speed is less than the synchronous speed of the field and are in the same direction None of these Magnetic field and rotor rotate in opposite direction Rotor speed is more than the synchronous speed of the field and are in the same direction Rotor speed is less than the synchronous speed of the field and are in the same direction None of these Magnetic field and rotor rotate in opposite direction ANSWER DOWNLOAD EXAMIANS APP
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