Electrical Machines Which of the following relation is correct? None of these Xd = Xq. Xd < Xq. Xd > Xq. None of these Xd = Xq. Xd < Xq. Xd > Xq. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following induction motor has the highest starting torque? Slip ring induction motor. Same in both induction motors. None of these Squirrel cage induction motor. Slip ring induction motor. Same in both induction motors. None of these Squirrel cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC series motor the speed is ______________ proportional to the armature current. none of these. inversely. directly. has no relation. none of these. inversely. directly. has no relation. 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 worsen and terminal voltage will rise. worsen and terminal voltage will fall improve but terminal voltage will fall. improve and terminal voltage will rise . worsen and terminal voltage will rise. worsen and terminal voltage will fall improve but terminal voltage will fall. improve and terminal voltage will rise . ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC shunt machine generates 250 V on open circuit at 1000 RPM. Armature resistance is 0.5 Ω, field resistance 250 Ω. When running as a motor takes 4 A at 250 V. Calculate the efficiency when running as a motor taking 40 A at 250 V. Armature reaction weakens the field by 4%. 78.5% 67.5% 82.5% 72.5% 78.5% 67.5% 82.5% 72.5% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor the speed can be increased by Increasing the armature current. Decreasing the field current. Increasing the field current. Increasing the field current. Increasing the armature current. Decreasing the field current. Increasing the field current. Increasing the field current. ANSWER DOWNLOAD EXAMIANS APP
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