Electrical Machines When maximum starting torque is obtained, rotor power is ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the temperature of armature resistance is increased, the speed of a series motor would decrease. not change. increase. None of above. decrease. not change. increase. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following DC Motor the ratio of starting torque to full load torque is minimum? Cumulative compound motor. Series motor. Shunt motor. Differential compound motor. Cumulative compound motor. Series motor. Shunt motor. Differential compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At the instant of starting, the per unit slip of 3 - Φ induction motor is 0.1. 0.05. 1.0. 0.5. 0.1. 0.05. 1.0. 0.5. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements : 1. interpole windings are connected in series with armature windings 2. polarity of interpoles must be the same as that of the main poles in advance 3. distortion of the main field under the pole shoes is not affected by the use of interpoles From above, the correct answer is 1 and 2 1 alone 2 and 3 1 and 3 1 and 2 1 alone 2 and 3 1 and 3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A commutator with a diameter of 50 cm rotating at 1000 rpm. For a brush width of 1.5 cm, find the time of commutation in ms. 0.512. 0.573. 0.443. 0.649. 0.512. 0.573. 0.443. 0.649. ANSWER DOWNLOAD EXAMIANS APP
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