Electrical Machines Slot wedges in a dc machine is made up of silicon steel. cast iron. mild steel. fibre. silicon steel. cast iron. mild steel. fibre. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC cumulatively compounded motor delivers rated load torque at rated speed. If the series field is short-circuited, then the armature current and speed will both decrease decrease and increase respectively increase and decrease respectively both increase both decrease decrease and increase respectively increase and decrease respectively both increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor when started on no load does not accelerate up to full speed but runs at 1/7th of the rated speed. The motor is said to be crawling. cogging. plugging. locking. crawling. cogging. plugging. locking. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An unexcited single phase synchronous motor is universal motor. repulsion motor. AC series motor. reluctance motor. universal motor. repulsion motor. AC series motor. reluctance motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases then field flux increases. decreases remains constant. decreases. increases. decreases remains constant. decreases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator sparking between brushes and commutator surface may be due to under commutation. any of the above. too rapid reversal of current. over commutation. under commutation. any of the above. too rapid reversal of current. over commutation. ANSWER DOWNLOAD EXAMIANS APP
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