Electrical Machines If the applied voltage of a DC motor is 230 V, then back emf, for maximum power developed is 460 V. 200 V. 115 V. 230 V. 460 V. 200 V. 115 V. 230 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip rings of an induction motors are made of phosphor bronze. stainless steel. carbon. aluminium. phosphor bronze. stainless steel. carbon. aluminium. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are the methods to reduce the armature reaction and its effects? compensating winding All of these pole stacking pole chamfering compensating winding All of these pole stacking pole chamfering ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a transformer to be tested at full load conditions but consuming only losses from the main, we do None of these load test OC and SC tests back to back test None of these load test OC and SC tests back to back test ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is minimized by laminating the core of a transformer? Eddy current loss. Copper loss. Stray loss. Hysteresis loss. Eddy current loss. Copper loss. Stray loss. Hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC series motor the speed is ______________ proportional to the armature current. directly. none of these. inversely. has no relation. directly. none of these. inversely. has no relation. ANSWER DOWNLOAD EXAMIANS APP
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