Electrical Machines If a DC motor is connected across the AC supply it will Burn. Run at normal speed. Not run. Run at lower speed. Burn. Run at normal speed. Not run. Run at lower speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator beyond critical resistance will generate maximum power. maximum current. maximum voltage. no voltage. maximum power. maximum current. maximum voltage. no voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Wave winding is prefered for which of the following rating? high current and high voltage low current and low voltage high current and low voltage low current and high voltage high current and high voltage low current and low voltage high current and low voltage low current and high voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a 50 Hz three phase induction motor under full load condition is 725 rpm the number of poles of the motor are ______________. 6. 2. 4. 8. 6. 2. 4. 8. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an induction motor, the no-load slip is generally equal to 4 %. zero. 1.5 %. less than 1 %. 4 %. zero. 1.5 %. less than 1 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When R2 is rotor resistance, X2 the rotor reactance at supply frequency and s the slip, then the condition for maximum torque under running condition will be R2 = sX2. sR2 = X2. R2 = s2X2. R2 = s2X2. R2 = sX2. sR2 = X2. R2 = s2X2. R2 = s2X2. ANSWER DOWNLOAD EXAMIANS APP
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