Electrical Machines It is an advisable to use auto transformer if the transformation ratio is Greater than 1. 0.5. 0.25. near to 1. Greater than 1. 0.5. 0.25. near to 1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a dc machine shunt resistance and armature resistance values are high and high low and high low and low high and low high and high low and high low and low high and low ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If direct axis reactance Xd and quadrature axis reactance Xq are equal, then reluctance power is zero minimum maximum All of these zero minimum maximum All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Methods of synchronizing of alternator may be done by one dark two bright. all of these. all bright lamp method. all dark lamp method. one dark two bright. all of these. all bright lamp method. all dark lamp method. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating windings is placed in which part of a D.C motor? On armature. On yoke in the pole faces. None of these On yoke in the inter pole gap. On armature. On yoke in the pole faces. None of these On yoke in the inter pole gap. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines How can the synchronous speed of a 3 - Φ IM be varied? By varying number of poles. By varying supply voltage. By varying the supply frequency. Both (A) and (B). By varying number of poles. By varying supply voltage. By varying the supply frequency. Both (A) and (B). ANSWER DOWNLOAD EXAMIANS APP
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