Electrical Machines Shunt field of DC generators consists of--------number of turns and ---------- conductors respectively large and thick large and thin less and thick less and thin large and thick large and thin less and thick less and thin ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an additional resistance is connected in series with a DC series motor operating at rated speed, the speed of the motor will Reduce. Remain unaltered. Increase. Oscillate around the normal speed. Reduce. Remain unaltered. Increase. Oscillate around the normal speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a star - delta starting of an IM applied voltage per stator phase is 57.7 % of a line volt reduced voltage is applied to the stator. line voltage is 57.7 % of stator voltage. resistance is inserted in the rotor. applied voltage per stator phase is 57.7 % of a line volt reduced voltage is applied to the stator. line voltage is 57.7 % of stator voltage. resistance is inserted in the rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a dc machine shunt resistance and armature resistance values are low and high high and high high and low low and low low and high high and high high and low low and low ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements regarding the speed control of dc motors : 1. ward-leonard method is suitable forconstant-torque drives 2. Ward-leonard method is suitable for constant-power drives 3. field-control method facilitates speed control below base speed 4. Armature-resistance control method is more efficient than ward-leanard method 5. Field-control method is suitable for constant-torque drives 6. Armature-resistance control method is suitable for constant-torque drives From these, the correct answer is 1, 2, 6 1, 4, 6 1, 3, 5 1, 2, 5 1, 2, 6 1, 4, 6 1, 3, 5 1, 2, 5 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is used in grinders? Split phase IM. Synchronous motor. Capacitor start IM. Capacitor start capacitor run IM. Split phase IM. Synchronous motor. Capacitor start IM. Capacitor start capacitor run IM. ANSWER DOWNLOAD EXAMIANS APP
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