Electrical Machines Which type of motors uses slip rings? DC Shunt Motor Synchronous motors Induction motors Both Synchronous and Induction motor DC Shunt Motor Synchronous motors Induction motors Both Synchronous and Induction motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under operating conditions the rotor conductor should be _________________ in induction motor. semi closed or semi opened. none. always closed. always opened. semi closed or semi opened. none. always closed. always opened. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If in a sub – station there is one 132 / 33 kV transformer whose secondary is connected with primary of one 33 / 11 kV transformer, the total transformation ratio of the sub – station will be, 12. 4. 3. 7. 12. 4. 3. 7. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A three phase induction motor has a synchronous speed of 1500 rpm the machine runs at 1460 rpm at a particular load. The slip at this load is ___________. 5 %. 2.67 %. 30 %. 1.5 %. 5 %. 2.67 %. 30 %. 1.5 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a dc motor the ratio Eb / E is indicative of ratio of input to output voltage. ratio of starting to running torque. efficiency. ratio of starting to running current. ratio of input to output voltage. ratio of starting to running torque. efficiency. ratio of starting to running current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Universal motor have which of the following application? Traction. Food mixer. Lift. Domestic pump. Traction. Food mixer. Lift. Domestic pump. ANSWER DOWNLOAD EXAMIANS APP
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