Electrical Machines If a DC Series motor is connected across an AC supply it will run at normal speed. not run. burn. run at lower speed. run at normal speed. not run. burn. run at lower speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principle of operation of a 3 - Φ induction motor is almost similar to that of transformer with secondary short circuited. synchronous motor. repulsion start induction motor. capacitor start induction motor. transformer with secondary short circuited. synchronous motor. repulsion start induction motor. capacitor start induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At the instant of starting, the per unit slip of 3 - Φ induction motor is 0.5. 1.0. 0.05. 0.1. 0.5. 1.0. 0.05. 0.1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. The frequency of rotor current is 5 Hz 1 Hz 0 Hz 50 Hz 5 Hz 1 Hz 0 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the frequency of a alternator, if P = number of poles and N = revolution made per second? 120N / P Hz. 120 / PN Hz. 120P / N Hz. PN / 2 Hz. 120N / P Hz. 120 / PN Hz. 120P / N Hz. PN / 2 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The wattage rating of a ceiling fan motor will be 50 - 150 W. 200 - 250 W. 250 - 500 W. 10 - 20 W. 50 - 150 W. 200 - 250 W. 250 - 500 W. 10 - 20 W. ANSWER DOWNLOAD EXAMIANS APP
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