Electrical Machines Which of the DC Motor use flywheel? Shunt motor. Series motor. Differently compared motor. Cumulatively compound motor. Shunt motor. Series motor. Differently compared motor. Cumulatively compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The net voltage across the armature resistance at the time of plugging will be 6 V 234 V 474 V 240 V 6 V 234 V 474 V 240 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous motor, the damper winding is generally used to prevent hunting and provide the starting torque. provide starting torque only. reduce noise level only. reduce the eddy currents. prevent hunting and provide the starting torque. provide starting torque only. reduce noise level only. reduce the eddy currents. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Example of double excited machine is Both are correct. DC Shunt Motor Synchronous motor. None of these Both are correct. DC Shunt Motor Synchronous motor. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under which of the following conditions is a dc motor provided with compensating winding used ? 1. Wide range of speed control above normal 2. Wide range of steady load variation with no speed control 3.Wide range of rapid variation in load Select the correct answer using the codes given below : Codes : 2 and 3 1 and 3 1 and 2 1, 2 and 3 2 and 3 1 and 3 1 and 2 1, 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the speed control of polyphase squirrel cage induction motor, if frequency of operation is decreased with either of these constant supply voltage V, starting torque Tst decreases None of these constant V, Tst increases either of these constant supply voltage V, starting torque Tst decreases None of these constant V, Tst increases ANSWER DOWNLOAD EXAMIANS APP
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