Electrical Machines Pole changing methods are suitable only for ___________ type induction motor. none of these. cage. linear. wound. none of these. cage. linear. wound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For 250 volt DC Shunt Motor the armature and field resistance are 0.5 ohm and 250 ohm respectively. What will be the back e.m.f. produced when it takes a load current of 21A. 150 V. 280 V. 240 V. 220 V. 150 V. 280 V. 240 V. 220 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load current in a transformer lags the applied voltage by about 115°. 90°. about 75°. 0°. about 115°. 90°. about 75°. 0°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Generators work on the principle of production of None of these statically induced emf. dynamically and statically induced emf. dynamically induced emf. None of these statically induced emf. dynamically and statically induced emf. dynamically induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is power factor of a 3 - φ induction motor at no load? Equal to 1. Low. Same as full load. High. Equal to 1. Low. Same as full load. High. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is an advisable to use auto transformer if the transformation ratio is near to 1. 0.25. Greater than 1. 0.5. near to 1. 0.25. Greater than 1. 0.5. ANSWER DOWNLOAD EXAMIANS APP
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