Electrical Machines As compared to an induction motor, the air gap in a DC motor is between 50% and 90%. more. same. less than 50%. between 50% and 90%. more. same. less than 50%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a cumulatively compound DC motor can be controlled by varying Armature voltage control. Shunt field resistance control. Armature resistance control. Any of above. Armature voltage control. Shunt field resistance control. Armature resistance control. Any of above. 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 OC and SC tests back to back test None of these load test OC and SC tests back to back test None of these load test ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an ideal DC generator the regulation is positive. high. zero. low. positive. high. zero. low. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Cogging and crawling are phenomena associated with any of the above. the former at a fraction of its rate speed and the latter during starting. the former during starting and the latter at a fraction of its rated speed. cage induction machines and they are essentially the same. any of the above. the former at a fraction of its rate speed and the latter during starting. the former during starting and the latter at a fraction of its rated speed. cage induction machines and they are essentially the same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an alternator, voltage drops occurs in armature resistance, leakage reactance, armature reaction and earth connection. armature resistance, leakage reactance and armature reaction. armature resistance and leakage reactance. armature resistance only. armature resistance, leakage reactance, armature reaction and earth connection. armature resistance, leakage reactance and armature reaction. armature resistance and leakage reactance. armature resistance only. ANSWER DOWNLOAD EXAMIANS APP
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