Electrical Machines Brushes are always placed on--------------- , in order to achieve sparkles commutation? MNA GNA None of these either GNA or MNA MNA GNA None of these either GNA or MNA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature MMF waveform of a DC machine is triangular. sinusoidal. pulsating. rectangular. triangular. sinusoidal. pulsating. rectangular. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A short circuit test on a transformer gives copper loss at any load. copper loss at half load. copper loss at full load. copper loss at over load. copper loss at any load. copper loss at half load. copper loss at full load. copper loss at over load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole dc generator is running at 1500 rpm the frequency of current in the armature winding is 200Hz. 50Hz. 100Hz. 150Hz. 200Hz. 50Hz. 100Hz. 150Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machines internal characteristics are plotted between Vt vs load current Vt vs Ia Eg vs load current Eg vs Ia Vt vs load current Vt vs Ia Eg vs load current Eg vs Ia ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC Shunt Motor has disadvantage(s) of constant speed. not suitable for rapidly changing loads. none of above. less expensive. constant speed. not suitable for rapidly changing loads. none of above. less expensive. ANSWER DOWNLOAD EXAMIANS APP
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