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. 2000 Volt. 0 Volt. 1500 Volt. 1600 Volt. 2000 Volt. 0 Volt. 1500 Volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two transformers operating in parallel will share the load depending on their ratings efficiency per unit impedance leakage reactance ratings efficiency per unit impedance leakage reactance ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements are correct ? None of these A small value of leakage reactance will increase the maximum power output of motor. The leakage reactance of the induction motor should be small. Both 1 and 2. None of these A small value of leakage reactance will increase the maximum power output of motor. The leakage reactance of the induction motor should be small. Both 1 and 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following load normally needs starting torque more than rated torque? Conveyers. Air compressors. Centrifugal pumps. Blowers. Conveyers. Air compressors. Centrifugal pumps. Blowers. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through solid connection. none of above. slip rings. commutator. solid connection. none of above. slip rings. commutator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous generator is feeding a zero power factor (lagging) load at rated current. The armature reaction is cross – magnetizing. ineffective. magnetizing. demagnetizing. cross – magnetizing. ineffective. magnetizing. demagnetizing. ANSWER DOWNLOAD EXAMIANS APP
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