Electrical Machines An unexcited single phase synchronous motor is universal motor. reluctance motor. repulsion motor. AC series motor. universal motor. reluctance motor. repulsion motor. AC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Larger values of air flux density is taken while designing IM for larger output. none. larger bore diameter. both. larger output. none. larger bore diameter. both. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the back emf in DC motor vanishes suddenly the motor will burn. start haunting. run at very high speed. run at very low speed. burn. start haunting. run at very high speed. run at very low speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux involved in the emf equation of a transformer has rms value. total value. average value. maximum value. rms value. total value. average value. maximum value. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator, when driven without any excitation, showed an open circuit voltage of 12 V. When the field winding was excited, the voltage dropped to zero. It happened because field winding was wrongly connected there was no residual magnetism in the field circuit field resistance was higher than critical resistance there was a break in the armature circuit field winding was wrongly connected there was no residual magnetism in the field circuit field resistance was higher than critical resistance there was a break in the armature circuit ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinson test is conducted under which of the following condition? half load any of the above full load no load half load any of the above full load no load ANSWER DOWNLOAD EXAMIANS APP
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