Electrical Machines In a DC series generator, the terminal voltage with increase in load will remain nearly constant increase gradually and then stay at rated voltage increase to rated voltage and then may decrease decrease remain nearly constant increase gradually and then stay at rated voltage increase to rated voltage and then may decrease decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reversing the direction of rotation of split phase motors is done by reversing the terminals of main winding. interchanging the capacitor from starting winding to main winding or vice versa. reversing the terminals of starting winding. All of these reversing the terminals of main winding. interchanging the capacitor from starting winding to main winding or vice versa. reversing the terminals of starting winding. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole DC generator rotates at 1500 rpm. How many times in a second, will the emf induced in each armature conductor changes its direction? 100. 200. 500. 750. 100. 200. 500. 750. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor in split phase induction motor is used to improve the power factor. improve the starting torque. start the motor. reduce the harmonics. improve the power factor. improve the starting torque. start the motor. reduce the harmonics. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To eliminate 5th harmonic in the induced voltage phase breadth should be 18° 30° 72° 36° 18° 30° 72° 36° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A commutator with a diameter of 50 cm rotating at 1000 rpm. For a brush width of 1.5 cm, find the time of commutation in ms. 0.649. 0.512. 0.443. 0.573. 0.649. 0.512. 0.443. 0.573. ANSWER DOWNLOAD EXAMIANS APP
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