Electrical Machines In which transformer, the tertiary winding is used? Star - delta Delta - star Delta - delta Star - star Star - delta Delta - star Delta - delta Star - star ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor is accidentally connected to single phase ac supply voltage. The torque produced will be pulsating and unidirectional oscillating None of these steady and unidirectional pulsating and unidirectional oscillating None of these steady and unidirectional ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load and full load speed of DC motor are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor ? 15.30%. 18.25%. 16.67%. 14.28%. 15.30%. 18.25%. 16.67%. 14.28%. 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. kept constant to certain value. decreased. increased. remains unchanged. kept constant to certain value. decreased. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two DC series motors are connected in series and are driving the same mechanical load. If the motors are now connected in parallel the speed will become half. 4 times. double. one fourth. half. 4 times. double. one fourth. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 2 pole, 12 slot synchronous machine is operating at synchronous speed. Find the slot angle? 18° 30° 20° 60° 18° 30° 20° 60° ANSWER DOWNLOAD EXAMIANS APP
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