Electrical Machines The induction motor shaft is made of mild steel. aluminium. cast iron. stainless steel. mild steel. aluminium. cast iron. stainless steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC generator runs at a speed of 1000 rpm and flux per pole is 0.2 Wb, number of poles are 2 the winding is wave wound and having 480 conductors. The critical speed is 1200 rpm. Then the generated emf ( Eg ) 1600 Volt. 0 Volt. 1500 Volt. 2000 Volt. 1600 Volt. 0 Volt. 1500 Volt. 2000 Volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. any of the above remains unaffected increases decreases any of the above remains unaffected increases decreases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The emf induced in a conductor rotating in a bipolar field is both of above. AC. DC. None of these both of above. AC. DC. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Mechanical energy is supplied to DC generator at the rate of 4200 J / s. The generator delivers 32.2 Amp at 120 V. What is the percentage efficiency of the generator? 210 V. 205 V. 212 V. 201.02 V. 210 V. 205 V. 212 V. 201.02 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When applied rated voltage per phase is reduce to one half, the starting torque of three phase squirrel cage induction motor becomes 1/4 of the intial value 4 time the initial value 1/2 of the initial value twice the initial value 1/4 of the intial value 4 time the initial value 1/2 of the initial value twice the initial value ANSWER DOWNLOAD EXAMIANS APP
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