Electrical Machines Two single-phase alternators operating in parallel have induced EMFs on open circuit of 230∠0° and 230∠10° volts and respective reactance of j2 Ω j3 Ω calculate the terminal voltage 223.V. 200 V. 150 V. 300 V. 223.V. 200 V. 150 V. 300 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following will vary the maximum torque? both 1 and 2 rotor resistance R None of these rotor reactance X both 1 and 2 rotor resistance R None of these rotor reactance X ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of rotating magnetic field of 8 pole 50 Hz induction motor is 1500 rpm 3000 rpm 1000 rpm 750 rpm 1500 rpm 3000 rpm 1000 rpm 750 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor wound rotor motor is mainly is used in application where less costly motor is not required. high starting torque. low starting torque. power factor is less. less costly motor is not required. high starting torque. low starting torque. power factor is less. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To increase starting torque of a 3-phase slip ring induction motor, preferred method is to increase supply voltage supply frequency rotor resistance None of these supply voltage supply frequency rotor resistance None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the same power output rating and full load speed, the motor will have poorest starting torque, is Cummulative compound. Differential compound. Shunt. Series. Cummulative compound. Differential compound. Shunt. Series. ANSWER DOWNLOAD EXAMIANS APP
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