Electrical Machines In a 3-phase induction motor, torque and supply voltage are related as T∝ V² T ∝ V T ∝ 1/V T ∝ 1/V² T∝ V² T ∝ V T ∝ 1/V T ∝ 1/V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through solid connection. commutator. slip rings. none of above. solid connection. commutator. slip rings. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 20KVA auto transformer, turn ratio is 0.8. Find the power transferred conductively? 20KVA 4KVA 16KVA 0KVA 20KVA 4KVA 16KVA 0KVA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Semi closed slots or totally closed slots are used in induction motors, essentially to decrease starting torque reduce magnetising current and improve power factor improve starting torque increase pull out torque decrease starting torque reduce magnetising current and improve power factor improve starting torque increase pull out torque ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The demagnetising component of armature reaction in a DC generator results in sparking trouble. increases armature speed. reduces inter poles flux density. reduces generator emf. results in sparking trouble. increases armature speed. reduces inter poles flux density. reduces generator emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has negative speed regulation? Series motor Cumulative compound motors Differential compound motor Shunt motor Series motor Cumulative compound motors Differential compound motor Shunt motor ANSWER DOWNLOAD EXAMIANS APP
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