Electrical Machines For the speed control of polyphase squirrel cage induction motor, if frequency of operation is decreased with 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 either of these constant supply voltage V, starting torque Tst decreases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the frequency of rotor current of 50 Hz induction motor operating at 4% slip? 2HZ 50Hz 1 Hz 2.5Hz 2HZ 50Hz 1 Hz 2.5Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the armature windings are placed on the rotor because of the necessity for generation of voltage development of torque electromechanical energy conversion commutation generation of voltage development of torque electromechanical energy conversion commutation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In applied voltage is reduced in a dc shunt motor None of these. Full load current. Full load torque. Full load speed. None of these. Full load current. Full load torque. Full load speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a part of transformer? Radiator. Conservator tank. Commutator. Tap changer. Radiator. Conservator tank. Commutator. Tap changer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinss test in DC motor is conducted at ? No load. None of these. Full load. Low load. No load. None of these. Full load. Low load. ANSWER DOWNLOAD EXAMIANS APP
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