Electrical Machines The current drawn by a 220 V DC series motor of armature resistance 0.5 Ω and back emf of 200 V is 440 A. 400 A. 44 A. 40 A. 440 A. 400 A. 44 A. 40 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The coil spam can never be equal to pole pitch. none of above. may or may not be exactly equal to people pitch. must be exactly equal to people pitch. can never be equal to pole pitch. none of above. may or may not be exactly equal to people pitch. must be exactly equal to people pitch. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The short circuit test on a transformer is conducted to obtain hysteresis loss. copper losses. core loses only. eddy current loss. hysteresis loss. copper losses. core loses only. eddy current loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a 3 - Φ induction motor is clockwise when it is supplied with 3 - Φ sinusoidal voltage having phase sequence A - B - C. For counterclockwise rotation of motor, the phase sequence of the supply should be A - C - B. B - C - A or C - A - B. B - C - A. C - A - B. A - C - B. B - C - A or C - A - B. B - C - A. C - A - B. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature flux is.............with respect to main field flux or main field poles? stationary rotates same direction rotates opposite direction None of these stationary rotates same direction rotates opposite direction None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop synchronous motor torque. induction generator torque. DC motor torque. induction motor torque. synchronous motor torque. induction generator torque. DC motor torque. induction motor torque. ANSWER DOWNLOAD EXAMIANS APP
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