Electrical Machines The current drawn by the a 230 V DC motor of armature resistance 0.5 Ω and back emf 200 V is 600 40 660 60 600 40 660 60 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is advisable to start a DC series motor with some load to Limit the speed. Avoid sparking. Limit the current. Limit the flux. Limit the speed. Avoid sparking. Limit the current. Limit the flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Star - delta method of starting of motor is not possible in case of single phase induction motor. high speed motor. low horse power motor. high torque motor. single phase induction motor. high speed motor. low horse power motor. high torque motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchorous generator connected to an infinite bus is over excited. Considering only the reactive power from the point view of the system the machine acts as A resistor. an inductor. None of these. A capacitor. A resistor. an inductor. None of these. A capacitor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The effect of ------------------ on main field flux is armature reaction? All of these armature mmf armature flux armature current All of these armature mmf armature flux armature current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors are preferred in lifts? DC series motors. DC shunt motors. None of these DC compound motors. DC series motors. DC shunt motors. None of these DC compound motors. ANSWER DOWNLOAD EXAMIANS APP
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