Electrical Machines If the applied voltage to a dc machine is 230 V, then the back emf, for maximum power developed, is 460 V 200 V 230 V 115 V 460 V 200 V 230 V 115 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Skewing of cage rotors offers the following advantages uniform torque. all of below. locking tendency is reduced. less noise. uniform torque. all of below. locking tendency is reduced. less noise. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronous condensers are used to improve starting torque improve the power factor reduce hunting All of these improve starting torque improve the power factor reduce hunting All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of bearing is provided in small induction motors to support the rotor shaft? Ball bearings. Cast iron bearings. Bush bearings. None of these Ball bearings. Cast iron bearings. Bush bearings. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the advantages of parallel operation of alternators? All of these continuity supply is maintained Increase efficiency under light load conditions Increase in reliability All of these continuity supply is maintained Increase efficiency under light load conditions Increase in reliability ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The overall power factor of an on load transformer is always unity. depends on the power factor of the load. is always lagging. is always leading. is always unity. depends on the power factor of the load. is always lagging. is always leading. ANSWER DOWNLOAD EXAMIANS APP
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