Electrical Machines The material used for commutator brushes is mostly copper. mica. cast iron. carbon. copper. mica. cast iron. carbon. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following machines have highest power factor with respect to magnetizing current? Open slot type machines. Semi closed slot type machine. Any of the above. Closed slot type machines. Open slot type machines. Semi closed slot type machine. Any of the above. Closed slot type machines. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors has low ratings only? Shaded pole Resistance split phase Capacitor run Capacitor start Shaded pole Resistance split phase Capacitor run Capacitor start ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under operating conditions the rotor conductor should be _________________ in induction motor. always closed. always opened. none. semi closed or semi opened. always closed. always opened. none. semi closed or semi opened. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The self induced emf in the coil undergoing commutation is called the statically induced voltage. reactance voltage. None of these dynamically induced voltage. statically induced voltage. reactance voltage. None of these dynamically induced voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following generators are used in arc welding? shunt generators series generators differential compound generators cumulative compound generators shunt generators series generators differential compound generators cumulative compound generators ANSWER DOWNLOAD EXAMIANS APP
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