Electrical Machines Which of the following is/are effects of armature reaction? increases the design cost All of these increase the maintenance and repair increase the iron loss increases the design cost All of these increase the maintenance and repair increase the iron loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous motor, the damper winding is generally used to reduce the eddy currents. provide starting torque only. reduce noise level only. prevent hunting and provide the starting torque. reduce the eddy currents. provide starting torque only. reduce noise level only. prevent hunting and provide the starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single-winding single-phase motor has zero starting torque. high starting torque. starting torque equal to full-load torque. low starting torque. zero starting torque. high starting torque. starting torque equal to full-load torque. low starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of IM the torque is inversely proportional to slip. directly proportional to slip. inversely proportional to √slip. directly proportional to slip2. inversely proportional to slip. directly proportional to slip. inversely proportional to √slip. directly proportional to slip2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machines shape of net flux density is? saddle shape peaky in nature flat tapped or trapezoidal sine wave saddle shape peaky in nature flat tapped or trapezoidal sine wave ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors has negative speed regulation? Differential compound motors. Both B and C. Shunt motors. Series motors. Differential compound motors. Both B and C. Shunt motors. Series motors. ANSWER DOWNLOAD EXAMIANS APP
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