Electrical Machines Demagnetization effects which of the following? commutation both B and C reduction in main field flux reduces the terminal voltage commutation both B and C reduction in main field flux reduces the terminal voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eg (generated emf) and Eb (back emf) both are different. none of above. changes. same. different. none of above. changes. same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principal of starting of 3 - Φ IM is similar to synchronous motor. capacitor run IM. transformer with short-circuited secondary. repulsion motor type starting. synchronous motor. capacitor run IM. transformer with short-circuited secondary. repulsion motor type starting. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What type of connection is made in between the inter-pole and the field winding? Compound. Parallel. Series. None of the options. Compound. Parallel. Series. None of the options. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator pitches of duplex and simplex lap windings are respectively 2 and 2 4 and 2 4 ang 1 2 and 1 2 and 2 4 and 2 4 ang 1 2 and 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The shaft torque of a dc motor is less than the electromagnetic torque because of ohmic losses. hysteresis losses. mechanical losses. eddy current losses. ohmic losses. hysteresis losses. mechanical losses. eddy current losses. ANSWER DOWNLOAD EXAMIANS APP
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