Electrical Machines The power factor of an induction motor operating at no load will have a value around 0.9 lag 0.2 lead unity 0.2 lag 0.9 lag 0.2 lead unity 0.2 lag ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Transformer core is laminated to reduce both 1 and 2. eddy current loss. hysteresis loss. copper loss. both 1 and 2. eddy current loss. hysteresis loss. copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To increase starting torque of a 3-phase slip ring induction motor, preferred method is to increase rotor resistance None of these supply frequency supply voltage rotor resistance None of these supply frequency supply voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines There are two 2-pole DC machines. Main field axis of machine A is horizontal and that of B is vertical. It is preferable to purchase any of the two machines machine B machine A none of these any of the two machines machine B machine A none of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is done in speed control of DC motor by field flux control? Any of above. Inserting an additional resistance in the armature circuit. Inserting an additional resistance in the field circuit. Inserting resistance to armature circuit and field circuit. Any of above. Inserting an additional resistance in the armature circuit. Inserting an additional resistance in the field circuit. Inserting resistance to armature circuit and field circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For standing a DC motor a starter is required because It starts the motor. it limits the starting current to a safe value. it limits the speed of the motor. None of these It starts the motor. it limits the starting current to a safe value. it limits the speed of the motor. None of these ANSWER DOWNLOAD EXAMIANS APP
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