Electrical Machines The armature voltage control is considered suitable for a DC motor driven at constant current. torque. speed. power. current. torque. speed. power. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a transformer to be tested at full load conditions but consuming only losses from the main, we do OC and SC tests None of these load test back to back test OC and SC tests None of these load test back to back test ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following alternators contain large number of poles? Turbo alternators. None of these Aame in both alternators. Hydro alternators. Turbo alternators. None of these Aame in both alternators. Hydro alternators. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum allowable tan - delta (tanδ) of dielectric dispassion factor of power transformer insulating oil is generally taken as 3 at 90°C. 0.5 at 90°C. 1 at 90°C. 2 at 90°C. 3 at 90°C. 0.5 at 90°C. 1 at 90°C. 2 at 90°C. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator pitches of duplex and simplex lap windings are respectively 2 and 2 2 and 1 4 and 2 4 ang 1 2 and 2 2 and 1 4 and 2 4 ang 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the air gap of IM is increased, ____________ will increase. power factor. air gap flux. speed. magnetizing current. power factor. air gap flux. speed. magnetizing current. ANSWER DOWNLOAD EXAMIANS APP
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