Electrical Machines In a resistance split phase motor, what is the range of torque angle? 90° 70° to 85° 0° 25° to 30° 90° 70° to 85° 0° 25° to 30° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tap changer is generally provided in power transformer. voltage transformer. current transformer. earthing transformer. power transformer. voltage transformer. current transformer. earthing transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If we increase the rotor reactance value, the maximum torque will decrease not changed increase None of these decrease not changed increase None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors. Calculate the back emf produced when it is running at a speed of 1500 rpm. 440 volt. 230 volt. 220 volt. 240 volt. 440 volt. 230 volt. 220 volt. 240 volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In electric locomotive which of the following motor are used ? Separately compound motor. DC series motor. Shunt motor. Synchronous motor. Separately compound motor. DC series motor. Shunt motor. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an AC servomotor has one of its winding excited by AC, then voltage measured at the other winding with rotor running will be zero. constant independent of speed. proportional to square of rotor speed. proportional to rotor speed. zero. constant independent of speed. proportional to square of rotor speed. proportional to rotor speed. ANSWER DOWNLOAD EXAMIANS APP
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