Electrical Machines A 3 - Φ, 4 pole, 50 Hz induction motor 4 % slip, calculate frequency of the rotor emf? 2 Hz. 3 Hz. 10 Hz. 50 Hz. 2 Hz. 3 Hz. 10 Hz. 50 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On switching a DC motor to DC supply mains, it is found to rotate in the direction opposite to that for which it is designed. The DC motor is Cummulative compound. have an equal number of electrons and protons. Differentical compound. Series shunt. Cummulative compound. have an equal number of electrons and protons. Differentical compound. Series shunt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the same power output rating and full load speed, the motor will have poorest starting torque, is Shunt. Cummulative compound. Series. Differential compound. Shunt. Cummulative compound. Series. Differential compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The overall power factor of an on load transformer depends on the power factor of the load. is always leading. is always unity. is always lagging. depends on the power factor of the load. is always leading. is always unity. is always lagging. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reversing the direction of rotation of split phase motors is done by All of these interchanging the capacitor from starting winding to main winding or vice versa. reversing the terminals of main winding. reversing the terminals of starting winding. All of these interchanging the capacitor from starting winding to main winding or vice versa. reversing the terminals of main winding. reversing the terminals of starting winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of these types of motor is self starting? Poly-phase synchronous machine. Poly-phase induction motor. Single phase induction motor. None of these. Poly-phase synchronous machine. Poly-phase induction motor. Single phase induction motor. None of these. ANSWER DOWNLOAD EXAMIANS APP