Electrical Machines Which of these types of motor is used in elevators? DC compound motor. None of these. DC series motor. DC shunt motor. DC compound motor. None of these. DC series motor. DC shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an auto transformer, for what value of turn ratio, power transferred by inductively and conductively are same? any of the above 0.5 0 1 any of the above 0.5 0 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC motors, under trailing pole tips, flux density will_______ ? decrease None of these either increase or decrease increase decrease None of these either increase or decrease increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3- phase synchronous motor can operate over a wide range of power factors i.e. from lagging to leading power factor. This is achieved by changing the load. changing the field excitation. varying the speed. varying the applied voltage. changing the load. changing the field excitation. varying the speed. varying the applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the above problem, find the induced voltage of an alternator of it is to deliver a load of 100 A at power factor of 0.8 lagging with terminal voltage of 200 V. 230 V. 220 V. 225 V. 222 V. 230 V. 220 V. 225 V. 222 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50 Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor copper loss? 40W 60W 100W 80W 40W 60W 100W 80W ANSWER DOWNLOAD EXAMIANS APP
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