Electrical Machines A 3- phase synchronous motor can operate over a wide range of power factors i.e. from lagging to leading power factor. This is achieved by changing the field excitation. changing the load. varying the applied voltage. varying the speed. changing the field excitation. changing the load. varying the applied voltage. varying the speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Quadrature axis synchronous reactance is the ratio of Vmax to Imax. Vmin to Imax. Vmin to Imin. Vmax to Imin. Vmax to Imax. Vmin to Imax. Vmin to Imin. Vmax to Imin. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Generators work on the principle of production of None of these dynamically induced emf. dynamically and statically induced emf. statically induced emf. None of these dynamically induced emf. dynamically and statically induced emf. statically induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a 3-phase induction motor operating in its stable region remains constant. decreases with decrease in the load torque. decreases with increase in the load torque. increases with increase in the load torque. remains constant. decreases with decrease in the load torque. decreases with increase in the load torque. increases with increase in the load torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Silicon content in steel lamination is kept within 5% as it All of these makes the material brittle. increases hysteresis loss. Increases cost. All of these makes the material brittle. increases hysteresis loss. Increases cost. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The emf induced in the dc generator armature winding is DC AC AC and DC None of these DC AC AC and DC None of these ANSWER DOWNLOAD EXAMIANS APP
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