Electrical Machines If the applied voltage of a DC motor is 230 V, then back emf, for maximum power developed is 200 V. 460 V. 230 V. 115 V. 200 V. 460 V. 230 V. 115 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The damper windings also called the squirrel cage windings or damper grids are provided on the stator for improving power factor. are provided in a synchronous motor to make it self starting. both (A) and (B). consists of short-circuited copper bars embedded in the field pole faces. are provided on the stator for improving power factor. are provided in a synchronous motor to make it self starting. both (A) and (B). consists of short-circuited copper bars embedded in the field pole faces. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The wattage rating of a ceiling fan motor will be 50 - 150 W. 250 - 500 W. 10 - 20 W. 200 - 250 W. 50 - 150 W. 250 - 500 W. 10 - 20 W. 200 - 250 W. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, the ripples in the direct emf generated are reduced by employing graphite brushes. equalizer rings. commutator with large number of segments. carbon brushes. graphite brushes. equalizer rings. commutator with large number of segments. carbon brushes. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Regenerative braking is possible in DC series motor. DC compound motor. DC shunt motor with field weakening control. DC shunt motor with armature resistance control. DC series motor. DC compound motor. DC shunt motor with field weakening control. DC shunt motor with armature resistance control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motors provided with open slots have less breakdown torque. leading power factor. higher efficiency. more breakdown torque. less breakdown torque. leading power factor. higher efficiency. more breakdown torque. ANSWER DOWNLOAD EXAMIANS APP
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