Electrical Machines Hunting phenomenon is observed in which motor? DC motor. Both A and C. Synchronous motor. Induction motor. DC motor. Both A and C. Synchronous motor. Induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3-phase induction motor, if the supply voltage and frequency are reduced by the same ratio, then slip at which maximum torque occurs is less and maximum torque decreases less and maximum torque increases more and maximum torque decreases more and maximum torque remains constant less and maximum torque decreases less and maximum torque increases more and maximum torque decreases more and maximum torque remains constant ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC generators has rising V-I characteristics? Series. None of them. Compound. Shunt. Series. None of them. Compound. Shunt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following rotor requires damper winding? Salient pole rotor. Both type rotor. None of these Cylindrical rotor. Salient pole rotor. Both type rotor. None of these Cylindrical rotor. 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 0.01 pu. 0.02 pu. 0.08 pu. 0.16 pu. 0.01 pu. 0.02 pu. 0.08 pu. 0.16 pu. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of DC machine is made of silicon steel lamination to reduce eddy current loss only. reduce both eddy current and hysteresis loss. increase the permeability. reduce hysteresis loss only. reduce eddy current loss only. reduce both eddy current and hysteresis loss. increase the permeability. reduce hysteresis loss only. ANSWER DOWNLOAD EXAMIANS APP
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