Electrical Machines A synchronous motor will deliver maximum power when input power factor is unity. load angle is 45°. load angle is equal to internal angle θ. load angle is 0°. input power factor is unity. load angle is 45°. load angle is equal to internal angle θ. load angle is 0°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The squirrel cage induction motors are provided with blades in order to eliminate noise. balance the rotor dynamically. none of these. facilitate cooling of rotor. eliminate noise. balance the rotor dynamically. none of these. facilitate cooling of rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The use of double squirrel cage winding on the rotor provides low noise. higher efficiency. a large starting torque. reduced starting torque. low noise. higher efficiency. a large starting torque. reduced starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which transformer, the tertiary winding is used? Star - star Delta - star Delta - delta Star - delta Star - star Delta - star Delta - delta Star - delta ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Speed of DC motor can be controlled by varying all of these. its flux oer pole. resistance of armature culture. applied voltage. all of these. its flux oer pole. resistance of armature culture. applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the field system has to be provided on stator unlike synchronous machines Where in it could be on any member, because it gives more uniform air-gap flux distribution commutator action is not possible otherwise dc machines are comparatively low rating machines. it reduces field structure iron losses it gives more uniform air-gap flux distribution commutator action is not possible otherwise dc machines are comparatively low rating machines. it reduces field structure iron losses ANSWER DOWNLOAD EXAMIANS APP
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