Electrical Machines In a transformer which of the following losses are zero? Copper loss Rotational loss Iron loss All of these Copper loss Rotational loss Iron loss All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a loaded DC motor, if the brushes are given a shift from the interpolar axis in the direction of rotation, then the commutation will deteriorate and the speed rises. improve and the speed rises. deteriorate and the speed falls. improve and the speed falls. deteriorate and the speed rises. improve and the speed rises. deteriorate and the speed falls. improve and the speed falls. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tertiary winding in a transformer is mostly zig - zag star connected. delta connected. star connected. zig - zag delta connected. zig - zag star connected. delta connected. star connected. zig - zag delta connected. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a transformer to be tested at full load conditions but consuming only losses from the main, we do None of these back to back test OC and SC tests load test None of these back to back test OC and SC tests load test ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an alternator, voltage drops occurs in armature resistance and leakage reactance. armature resistance, leakage reactance and armature reaction. armature resistance, leakage reactance, armature reaction and earth connection. armature resistance only. armature resistance and leakage reactance. armature resistance, leakage reactance and armature reaction. armature resistance, leakage reactance, armature reaction and earth connection. armature resistance only. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For larger units high torque it is preferred to use Universal motor. Partial motor. DC shunt motor. Slip induction motor. Universal motor. Partial motor. DC shunt motor. Slip induction motor. ANSWER DOWNLOAD EXAMIANS APP
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