Electrical Machines If input of a transformer is square wave the output will be square wave. triangular wave. sine wave. pulsed wave. square wave. triangular wave. sine wave. pulsed wave. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is reduced, the power factor is None of these lagging power factor unity power factor leading power factor None of these lagging power factor unity power factor leading power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The brushes of a DC machine should be placed on the armature midway between poles. armature in the polar axis. commutator in the polar axis. commutator in the inter polar axis. armature midway between poles. armature in the polar axis. commutator in the polar axis. commutator in the inter polar axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Crawling in an induction motor is due to time harmonics in supply. slip ring rotor. space harmonics produced by winding currents. insufficient starting torque. time harmonics in supply. slip ring rotor. space harmonics produced by winding currents. insufficient starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor electromotive force of the IM is observed to make 100 complete alterations per minute, calculated slip 0 .001 %. 3 %. 3.33 %. None of these 0 .001 %. 3 %. 3.33 %. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tertiary winding in a transformer is mostly star connected. delta connected. zig - zag delta connected. zig - zag star connected. star connected. delta connected. zig - zag delta connected. zig - zag star connected. ANSWER DOWNLOAD EXAMIANS APP
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