Electrical Machines A shunt generator is running at 1000 rpm. If flux is reduced by half, then what is the new speed? 500. 1000. 2000. 0. 500. 1000. 2000. 0. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine current and emf at the terminals are alternating. emf in armature conductors and at the terminals is alternating. current and emf in armature are unidirectional current and emf in armature are alternating. current and emf at the terminals are alternating. emf in armature conductors and at the terminals is alternating. current and emf in armature are unidirectional current and emf in armature are alternating. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What are the starters used for starting of cage motors? Auto transformer starter. Star-delta starter. DOL starter. All of these. Auto transformer starter. Star-delta starter. DOL starter. All of these. 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 use of double squirrel cage winding on the rotor provides a large starting torque. reduced starting torque. low noise. higher efficiency. a large starting torque. reduced starting torque. low noise. higher efficiency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When excitation is increased (over excitation), the synchronous generator operates at unity power factor. leading power factor. any of the above. lagging power factor. unity power factor. leading power factor. any of the above. lagging power factor. ANSWER DOWNLOAD EXAMIANS APP
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