Electrical Machines In a transformer zero voltage regulation is achieved at a load power factor which is leading zero lagging unity leading zero lagging unity ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The application that need frequent starting and stopping is jaw crushers. lifts and hoists. blowers. paper mills. jaw crushers. lifts and hoists. blowers. paper mills. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A three phase 400 V, 6 pole, 50 Hz, squirrel cage induction motor is running at a slip of 5%. The speed of stator magnetic field with respect to rotor magnetic field and speed of rotor w.r.t stator magnetic field are zero, 950 rpm. zero , - 50 rpm. 1000 rpm, 950 rpm. 1000 rpm, - 50 rpm. zero, 950 rpm. zero , - 50 rpm. 1000 rpm, 950 rpm. 1000 rpm, - 50 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In escalator which motor is used? 1 - φ IM. Universal motor. 3 - φ IM. DC shunt motor. 1 - φ IM. Universal motor. 3 - φ IM. DC shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a transformer to be tested at full load conditions but consuming only losses from the main, we do load test OC and SC tests back to back test None of these load test OC and SC tests back to back test None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A separately excited DC motor has an armature resistance of 0.5 Ohm. The supply voltage is 250V. Armature current is 20A and the speed of rotation is 1500 rpm. Find the torque developed? 15.28 Nm 16.55 Nm Zero 15.6 Nm 15.28 Nm 16.55 Nm Zero 15.6 Nm ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS