Electrical Machines When a transformer is loaded, the secondary terminal voltage drops. That means power factor is zero. leading. unity. lagging. zero. leading. unity. lagging. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a fault at the terminal of a synchronous generator, the fault current is maximum for a line to line fault. line to ground fault. 3 - phase fault. 3 - phase to ground fault. line to line fault. line to ground fault. 3 - phase fault. 3 - phase to ground fault. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 100/10, 50 VA double winding transformer is converted to 100/110 V auto transformer. The rating of auto transformer is 110 VA 100 VA 550 VA 500 VA 110 VA 100 VA 550 VA 500 VA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop induction motor torque. DC motor torque. synchronous motor torque. induction generator torque. induction motor torque. DC motor torque. synchronous motor torque. induction generator torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous machine, if the field flux axis is ahead of the armature field axis in the direction of rotation, the machine operating is asynchronous motor. asynchronous generator. synchronous generator. synchronous motor. asynchronous motor. asynchronous generator. synchronous generator. synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The compensating winding in a DC machine is located in armature slots for compensation of the armature reaction. is located on commutating poles for improving commutation. is located on pole shoes to avoid the sparking at the brushes. is located on pole shoes for avoiding the flashover at the commutator. is located in armature slots for compensation of the armature reaction. is located on commutating poles for improving commutation. is located on pole shoes to avoid the sparking at the brushes. is located on pole shoes for avoiding the flashover at the commutator. ANSWER DOWNLOAD EXAMIANS APP
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