Electrical Machines Total core loss is also called as -------------? Hysteresis loss Copper loss Magnetic loss Eddy current loss Hysteresis loss Copper loss Magnetic loss Eddy current loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If residual magnetism of a shunt generator is destroyed accidentally it may be restored by connecting its shunt field to an AC source. to a DC source. to earth. in reverse. to an AC source. to a DC source. to earth. in reverse. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are 4% and 5% from no load to full load. Consider the governors operating at 50Hz on no load. How will the machine share, if the load is 600 MW? generator 1 gets over load 200 MW and 400MW None of these generator 2 gets over load generator 1 gets over load 200 MW and 400MW None of these generator 2 gets over load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A part an alternator winding consist of eight coils in series, each having an emf of 20 V rms induced in it. Coils are placed in successive slots and between each slot and the next, there is an electrical phase displacement of 30°. Find the emf of eight coils in series 66.91 V. 76.91 V. 86.91 V. 56.91 V. 66.91 V. 76.91 V. 86.91 V. 56.91 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors is/are widely used? either of these slip ring induction motor squirrel cage induction motor None of these either of these slip ring induction motor squirrel cage induction motor None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The ___________________ generator has the poorest voltage regulation. under-compounded. over compounded. shunt. differential compounded. under-compounded. over compounded. shunt. differential compounded. ANSWER DOWNLOAD EXAMIANS APP
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