Electrical Machines The field divertor resistance for a DC series motor is of order of 100 Ω 10 Ω 50 Ω 0.1 Ω 100 Ω 10 Ω 50 Ω 0.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous motor will deliver maximum power when load angle is equal to internal angle θ. load angle is 45°. load angle is 0°. input power factor is unity. load angle is equal to internal angle θ. load angle is 45°. load angle is 0°. input power factor is unity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The application that need frequent starting and stopping is paper mills. lifts and hoists. blowers. jaw crushers. paper mills. lifts and hoists. blowers. jaw crushers. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, the ripples in the direct emf generated are reduced by employing equalizer rings. graphite brushes. carbon brushes. commutator with large number of segments. equalizer rings. graphite brushes. carbon brushes. commutator with large number of segments. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor the speed can be increased by Increasing the field current. Increasing the armature current. Increasing the field current. Decreasing the field current. Increasing the field current. Increasing the armature current. Increasing the field current. Decreasing the field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the number of rotor slots is equal to number of stator slots, then motor refuses to start. Hence it is known as air gap. cogging. crawling. relative speed. air gap. cogging. crawling. relative speed. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS