Electrical Machines Which of the following machine is invariably provided with forced ventilation? Fractional horse power high speed motor. Hermetically sealed motor of refrigerator. 50 MW generator in a power plant. Fractional horse power slow speed motor. Fractional horse power high speed motor. Hermetically sealed motor of refrigerator. 50 MW generator in a power plant. Fractional horse power slow speed motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ slip ring motor has wound rotor. short-circuited rotor. double cage rotor. any of the above. wound rotor. short-circuited rotor. double cage rotor. any of the above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Brushes are always placed on--------------- , in order to achieve sparkles commutation? GNA either GNA or MNA MNA None of these GNA either GNA or MNA MNA None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum efficiency will occur, when copper loss is_______to iron loss? any of the above greater than equal to less than any of the above greater than equal to less than ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load current in a transformer lags the applied voltage by about 75°. 90°. about 115°. 0°. about 75°. 90°. about 115°. 0°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases keeping the terminal voltage constant, then flux will any of the above. increase. decrease. remain constant. any of the above. increase. decrease. remain constant. ANSWER DOWNLOAD EXAMIANS APP
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