Electrical Machines In dc machines, the field-flux axis and armature-mmf axis are respectively along direct axis and interpolar axis quadrature axis and direct axis direct axis and indirect axis quadrature axis and interpolar axis direct axis and interpolar axis quadrature axis and direct axis direct axis and indirect axis quadrature axis and interpolar axis ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Series field consists of--------number of turns and ---------- conductors respectively less and thin less and thick large and thin large and thick less and thin less and thick large and thin large and thick ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Quadrature axis synchronous reactance is the ratio of Vmin to Imin. Vmax to Imin. Vmax to Imax. Vmin to Imax. Vmin to Imin. Vmax to Imin. Vmax to Imax. Vmin to Imax. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking is employed to brake reversing drive both 1 and 2 None of these non reversing drive reversing drive both 1 and 2 None of these non reversing drive 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 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 improve but terminal voltage will fall. worsen and terminal voltage will rise. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A self-excited shunt generator fails to build up, because 1. the field circuit is open 2. The armature circuit is open 3. the residual magnetism is absent 4. The direction of rotation is wrong From these, the correct answer is 1, 2, 3 and 4 1, 3 1, 2 and 3 3 only 1, 2, 3 and 4 1, 3 1, 2 and 3 3 only ANSWER DOWNLOAD EXAMIANS APP
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