Electrical Machines In a transformer zero voltage regulation is achieved at a load power factor which is lagging unity leading zero lagging unity leading zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A smaller air gap in a polyphase induction motor helps to reduce the chance of cogging. reduce the chance of crawling. reduce the magnetizing current. increase the starting torque. reduce the chance of cogging. reduce the chance of crawling. reduce the magnetizing current. increase the starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In one 132 / 33 kV transformer the LV resistance is 0.02 per unit. The resistance referred to HV side is 0.08 pu. 0.16 pu. 0.01 pu. 0.02 pu. 0.08 pu. 0.16 pu. 0.01 pu. 0.02 pu. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip exists in none of above. synchronous motor. in both machines. induction motor. none of above. synchronous motor. in both machines. induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field current is reduced to zero the maximum power developed by alternator is 0.9103 KW. 1.644 KW. 5.46 KW. 2.73 KW. 0.9103 KW. 1.644 KW. 5.46 KW. 2.73 KW. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the applied voltage of a DC motor is 230 V, then back emf, for maximum power developed is 200 V. 115 V. 230 V. 460 V. 200 V. 115 V. 230 V. 460 V. ANSWER DOWNLOAD EXAMIANS APP
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