Electrical Machines Consider a separately excited DC motor. If the field current is increased while the armature terminal voltage is held constant, then speed of the motor Increase. Remains same. None of these. Decrease. Increase. Remains same. None of these. Decrease. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slight curvature at the lower end of the OCC of a self excited DC generator is due to high speed. magnetic inertia. residual flux. high field resistance. high speed. magnetic inertia. residual flux. high field resistance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The working principle of transformer depends on Coulombs law. Faradays law of electromagnetic induction. Newtons law. Amperes law. Coulombs law. Faradays law of electromagnetic induction. Newtons law. Amperes law. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by a DC motor at the time of starting is Very low. Normal. Very high. Zero. Very low. Normal. Very high. Zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, full form of MNA is what? Magnetic no-load axis. Magnetic neutral armature co-ordinate. Magnetically no-load armature co-ordinate. Magnetic neutral axis. Magnetic no-load axis. Magnetic neutral armature co-ordinate. Magnetically no-load armature co-ordinate. Magnetic neutral axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a 50 Hz three phase induction motor under full load condition is 725 rpm the number of poles of the motor are ______________. 8. 2. 6. 4. 8. 2. 6. 4. ANSWER DOWNLOAD EXAMIANS APP
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