Electrical Machines Which of the following motors is/are widely used? either of these slip ring induction motor squirrel cage induction motor None of these either of these slip ring induction motor squirrel cage induction motor None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Series generators are used in which of the following applications? Used as boosters in dc distribution or transmission. Arc welding. Air crafts. All of these Used as boosters in dc distribution or transmission. Arc welding. Air crafts. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 6 pole, 50 Hz IM has a rotor speed of 987 rpm find rotor frequency? 0.70 Hz. 0.75 Hz. 0.65 Hz. 60 Hz. 0.70 Hz. 0.75 Hz. 0.65 Hz. 60 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor when the length of the air gap is increased, the magnetizing current of the motor increases while the short circuit current __________________. increased. remains unchanged. decreased. kept constant to certain value. increased. remains unchanged. decreased. kept constant to certain value. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the frequency of rotor current of 50 Hz induction motor operating at 4% slip? 1 Hz 2.5Hz 50Hz 2HZ 1 Hz 2.5Hz 50Hz 2HZ ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines stepped cores are used in transformers in order to reduce volume of iron. volume of copper. iron loss. reluctance of core. volume of iron. volume of copper. iron loss. reluctance of core. ANSWER DOWNLOAD EXAMIANS APP
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