Electrical Machines A 8 pole, 50 Hz single phase induction motor is running at 690 rpm. Its slip with respect to forward field is -0.08 1.92 0.08 -1.92 -0.08 1.92 0.08 -1.92 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt motor has external resistance Ra and Rf in the armature and field circuits respectively. Armature current at starting can be reduced by keeping Ra maximum and Rf minimum Ra maximum and Rf maximum Ra minimum and Rf minimum Rf maximum and Ra minimum Ra maximum and Rf minimum Ra maximum and Rf maximum Ra minimum and Rf minimum Rf maximum and Ra minimum ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slot edges in a DC machine are made of Silicon steel. Mild steel. Cast iron. Fibre. Silicon steel. Mild steel. Cast iron. Fibre. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a 3-phase, 4 pole, 50 Hz synchronous motor the frequency, pole number and the frequency are halved. The motor speed will be 1500 rpm 3000 rpm 375 rpm 75 rpm 1500 rpm 3000 rpm 375 rpm 75 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eg (generated emf) and Eb (back emf) both are same. different. changes. none of above. same. different. changes. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In travelling cranes for crane travel, trolley and boom hoist which motor is preferred? Synchronous motor. DC differential compound motor. Slip ring induction motor. Stepper motor. Synchronous motor. DC differential compound motor. Slip ring induction motor. Stepper motor. ANSWER DOWNLOAD EXAMIANS APP
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