Electrical Machines In a 6 pole DC machine, 90 mechanical degrees correspond to which of the following electrical degree? 45. 30. 180. 270. 45. 30. 180. 270. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors is/are widely used? slip ring induction motor None of these either of these squirrel cage induction motor slip ring induction motor None of these either of these squirrel cage induction motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by a DC motor at the time of starting is Normal. Very high. Zero. Very low. Normal. Very high. Zero. Very low. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronous reactance of an alternator represents All of these field winding reactance a reactance operating at synchronous speed armature reactance and leakage reactance All of these field winding reactance a reactance operating at synchronous speed armature reactance and leakage reactance ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In auto transformer if the turn ratio is K, what is the power transferred inductively? K × input power both A and B None of these (1-K) × input power K × input power both A and B None of these (1-K) × input power ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following generators are used in arc welding? differential compound generators shunt generators series generators cumulative compound generators differential compound generators shunt generators series generators cumulative compound generators ANSWER DOWNLOAD EXAMIANS APP