Electrical Machines Induction motor operation depends on stationary magnetic field. either of these. rotating magnetic field. None of these stationary magnetic field. either of these. rotating magnetic field. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statement is correct, if short circuit ratio is high? Good voltage regulation High voltage regulation None of these Low short circuit current Good voltage regulation High voltage regulation None of these Low short circuit current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An 8 pole DC generator has 500 armature conductors and useful flux per pole of 0.065 Wb. What will be the emf generated if it is lap connected and runs at 1000 rpm. What must be the speed at which it is driven to produce the same emf if it is wave wound? 541.67V, 250 rpm. 2166.67V, 230 rpm. 541.67V, 200 rpm. 2166.67V, 270 rpm. 541.67V, 250 rpm. 2166.67V, 230 rpm. 541.67V, 200 rpm. 2166.67V, 270 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single-phase transformer has its maximum efficiency at 60 percent of full load. At full load copper loss will be less than core loss. more than core loss. equal to core loss. zero. less than core loss. more than core loss. equal to core loss. zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC shunt generator working on load, the brushes are moved forward in the direction of rotation, as a result of this, commutation will improve but terminal voltage will fall. worsen and terminal voltage will rise. improve and terminal voltage will rise . worsen and terminal voltage will fall improve but terminal voltage will fall. worsen and terminal voltage will rise. improve and terminal voltage will rise . worsen and terminal voltage will fall ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines _____________ types of induction motor are widely used. Slip ring IM. Three phase IM. Single phase IM. Squirrel cage IM. Slip ring IM. Three phase IM. Single phase IM. Squirrel cage IM. ANSWER DOWNLOAD EXAMIANS APP
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