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. 4. 6. 2. 8. 4. 6. 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two of supply terminals to a 3 - Φ induction motor get interchanged during re-connection after normal maintenance. When switched on the supply, the motor will get heated and damaged. rotate in the same direction as before maintenance. rotate in direction opposite to that before maintenance. not start at all. get heated and damaged. rotate in the same direction as before maintenance. rotate in direction opposite to that before maintenance. not start at all. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The back emf produced in a dc motor depends on P. P and Z. none of these. Z. P. P and Z. none of these. Z. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In applied voltage is reduced in a dc shunt motor None of these. Full load speed. Full load current. Full load torque. None of these. Full load speed. Full load current. Full load torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The 3 - Φ induction motors are, by a very considerable margin, the most widely used AC motors as they have maximum efficiency and maximum starting torque. they have very good speed regulation. these are cheaper in cost, simple and rugged in construction. they are capable of operation under range of leading and lagging pf. they have maximum efficiency and maximum starting torque. they have very good speed regulation. these are cheaper in cost, simple and rugged in construction. they are capable of operation under range of leading and lagging pf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eddy current loss will depends on All of these Flux density Thickness Frequency All of these Flux density Thickness Frequency ANSWER DOWNLOAD EXAMIANS APP
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