Electrical Machines The wound rotor type IM is used for____________ speed operation. minimum. maximum. variable. constant. minimum. maximum. variable. constant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer, hysteresis and eddy current losses depend upon maximum flux density load current supply frequency both 2 and 3 maximum flux density load current supply frequency both 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eb/V ratio of a DC motor is an indication of Speed regulation. Starting torque. Effiency. Running Torque. Speed regulation. Starting torque. Effiency. Running Torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Motors for fans and pumps are selected in the rpm range 1440 to 2880. 375 to 500. 720 to 920. 500 to 720. 1440 to 2880. 375 to 500. 720 to 920. 500 to 720. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When excitation is increased (over excitation), the synchronous generator operates at any of the above. unity power factor. leading power factor. lagging power factor. any of the above. unity power factor. leading power factor. lagging power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The factors that are responsible for decrease in terminal voltage of a shunt generator are armature resistance, effect of armature reaction. reduction in field current, effect of armature reaction, armature. armature resistance, inter poles, armature. armature resistance, effect of armature reaction. armature resistance, effect of armature reaction. reduction in field current, effect of armature reaction, armature. armature resistance, inter poles, armature. armature resistance, effect of armature reaction. ANSWER DOWNLOAD EXAMIANS APP
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