Electrical Machines A 3-phase, 50Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor output power? 1920W 1450W 1820W 2000W 1920W 1450W 1820W 2000W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which machine is used for battery charging? Compounded DC generator. DC shunt generator. DC series generator. None of these. Compounded DC generator. DC shunt generator. DC series generator. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The sequence of induction motor is RYB, then the direction of induction motor can be changed by which of the following sequence? RBY BYR BRY All of these RBY BYR BRY All of these 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 double. half. 4 times. one fourth. double. half. 4 times. one fourth. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the applied voltage of a certain transformer is increased by 50% and the frequency is reduced by 50%, the maximum flux density will (assuming that the magnetic circuit remains unsaturated) remain the same as the original changes to 1.5 times the original value changes to 0.5 times the original value changes to three times the original value remain the same as the original changes to 1.5 times the original value changes to 0.5 times the original value changes to three times the original value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has synchronous speed of 1500 rpm. What will be the slip when it is running at a speed of 1450 rpm? -3.33% +3% -3% +3.33% -3.33% +3% -3% +3.33% ANSWER DOWNLOAD EXAMIANS APP
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