Electrical Machines Lamination of core are generally made of carbon. silicon steel. stainless steel. cast iron. carbon. silicon steel. stainless steel. cast iron. 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 relative speed. cogging. air gap. crawling. relative speed. cogging. air gap. crawling. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For high current and low current rating which winding is employed to DC machine? Wave winding Lap winding Both lap and wave winding None of above Wave winding Lap winding Both lap and wave winding None of above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The condition for maximum running torque is zero R = S.X unity 0.707 lagging 0.5 lagging zero R = S.X unity 0.707 lagging 0.5 lagging ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding is placed in the All of these pole shoe armature core main field All of these pole shoe armature core main field ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A commutator in DC machines can 1. provide half-wave rectification 2. Provide full-wave rectification 3. convert ac to dc 4. Convert dc to ac 5. provide controlled full-wave rectification From these, the correct answer is 2, 3 ,5 2, 3, 4 2, 3, 4, 5 1, 2, 3 2, 3 ,5 2, 3, 4 2, 3, 4, 5 1, 2, 3 ANSWER DOWNLOAD EXAMIANS APP
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