Electrical Machines In one 132 / 33 kV transformer the LV resistance is 0.02 per unit. The resistance referred to HV side is 0.16 pu. 0.01 pu. 0.02 pu. 0.08 pu. 0.16 pu. 0.01 pu. 0.02 pu. 0.08 pu. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, brushes are always placed along geometrical neutral axis. load axis. magnetic neutral axis. armature axis. geometrical neutral axis. load axis. magnetic neutral axis. armature axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator the emf generated by the armature is maximum when rate of change of flux is minimum. shaft rotation is high. induced voltage is high. rate of change of flux is maximum. rate of change of flux is minimum. shaft rotation is high. induced voltage is high. rate of change of flux is maximum. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two identical loss less series motors connected in series across a dc supply voltage, runs at speed of N1 and N2, then ratio of their output power is none. 1 : 1. N1 : N2. N12 : N22. none. 1 : 1. N1 : N2. N12 : N22. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eg (generated emf) and Eb (back emf) both are same. none of above. different. changes. same. none of above. different. changes. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a given torque, reducing diverter resistance of a DC series motor causes increase in speed but armature currnet remains the same. increase in speed demanding more armature current. decrease in speed but armature current remains the same. decrease in speed demanding less armature current. increase in speed but armature currnet remains the same. increase in speed demanding more armature current. decrease in speed but armature current remains the same. decrease in speed demanding less armature current. ANSWER DOWNLOAD EXAMIANS APP
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