Electrical Machines Pole changing methods are suitable only for ___________ type induction motor. none of these. linear. wound. cage. none of these. linear. wound. cage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has a rotor resistance of 0.002 Ω / phase. If the resistance is increased to 0.004 Ω / phase then the maximum torque will increase by 200% reduced to half increase by 100% remain unaltered increase by 200% reduced to half increase by 100% remain unaltered ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The overall power factor of an on load transformer is always lagging. is always leading. is always unity. depends on the power factor of the load. is always lagging. is always leading. is always unity. depends on the power factor of the load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC compound motor has only series field winding. both shunt and series field winding. only shunt field winding. tertiary winding. only series field winding. both shunt and series field winding. only shunt field winding. tertiary winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which motors are preferred for refrigeration and air conditioning in smaller units? Universal motors. Stepper motors. Reluctance motors. Induction motors. Universal motors. Stepper motors. Reluctance motors. Induction motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For P pole machine relation between electrical degrees and mechanical degrees is θelec = 4/P*θmech θelec = 2/P*θmech θelec = P/2*θmech θelec = θmech θelec = 4/P*θmech θelec = 2/P*θmech θelec = P/2*θmech θelec = θmech ANSWER DOWNLOAD EXAMIANS APP
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