Electrical Machines Brushes are always placed on--------------- , in order to achieve sparkles commutation? MNA either GNA or MNA GNA None of these MNA either GNA or MNA GNA None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The wattage rating of a ceiling fan motor will be 50 - 150 W. 250 - 500 W. 200 - 250 W. 10 - 20 W. 50 - 150 W. 250 - 500 W. 200 - 250 W. 10 - 20 W. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The polarity of a DC generator can be reversed by any of above. increasing field current. reversing the field current. reversing field electric current as well as direction of rotation. any of above. increasing field current. reversing the field current. reversing field electric current as well as direction of rotation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Normally for the design of transformer the ambient temperature is taken as 45°C. 35°C. 27°C. 32°C. 45°C. 35°C. 27°C. 32°C. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a standard frequency the machine operates at a particular speed known as any of the above. normal speed. synchronous speed. slip speed. any of the above. normal speed. synchronous speed. slip speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power will be developed when back emf is All of these double the supply voltage. equal to supply voltage. half of the supply voltage. All of these double the supply voltage. equal to supply voltage. half of the supply voltage. ANSWER DOWNLOAD EXAMIANS APP
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