Electrical Machines Which of the following rotor requires damper winding? Cylindrical rotor. Salient pole rotor. None of these Both type rotor. Cylindrical rotor. Salient pole rotor. None of these Both type rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC Shunt Motor having armature resistance of 0.5 Ω and 2A armature current at no-load, when the armature current is changed to 20A at loaded condition the speed is 1000 r.p.m. What is the speed at no-load? 1037.5 r.p.m. 1130 r.p.m. 963.8 r.p.m. 4575.4 r.p.m. 1037.5 r.p.m. 1130 r.p.m. 963.8 r.p.m. 4575.4 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of a DC motor is laminated to reduce friction and windage loss. hysteresis loss. eddy current loss. copper loss. friction and windage loss. hysteresis loss. eddy current loss. copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the e.m.f. generated by a 4 pole lap connected DC Generator rotating at 1500 r.p.m.? Its flux per pole is 0.4 mWb and total no of armature conductors is 1000. 40 volts. 10 volts. 20 volts. 30 volts. 40 volts. 10 volts. 20 volts. 30 volts. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC Motor is used in paper machines? Separately excited DC motor. DC Shunt motor. DC compound motor. DC series motor. Separately excited DC motor. DC Shunt motor. DC compound motor. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
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