Electrical Machines If the field current is reduced to zero the maximum power developed by alternator is 1.644 KW. 0.9103 KW. 2.73 KW. 5.46 KW. 1.644 KW. 0.9103 KW. 2.73 KW. 5.46 KW. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To increase starting torque of a 3-phase slip ring induction motor, preferred method is to increase supply voltage supply frequency None of these rotor resistance supply voltage supply frequency None of these rotor resistance ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC motors, under trailing pole tips, flux density will_______ ? increase decrease either increase or decrease None of these increase decrease either increase or decrease None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under operating conditions the rotor conductor should be _________________ in induction motor. always opened. always closed. none. semi closed or semi opened. always opened. always closed. none. semi closed or semi opened. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc series motor driving and electric train faces a constant power load. It is running at rated speed and rated voltage. If the speed has to be brought down to 0.25 p.u. the supply voltage has to be approximately brought down to 0.75 p.u 0.25 p.u 0.5 p.u 0.125 p.u 0.75 p.u 0.25 p.u 0.5 p.u 0.125 p.u ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Iron loss in a transformer mainly occurs in transformer insulating oil. iron made tank of transformer. winding of transformer. steel core in transformer. transformer insulating oil. iron made tank of transformer. winding of transformer. steel core in transformer. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS