Electrical Machines The condition for maximum running torque is R = S.X zero 0.5 lagging unity 0.707 lagging R = S.X zero 0.5 lagging unity 0.707 lagging ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the effect of armature reaction ? Armature flux distorts the main field flux. Both option B and C. None of the options. Armature flux weakens the main field flux. Armature flux distorts the main field flux. Both option B and C. None of the options. Armature flux weakens the main field flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The type of DC motor generally used for shears and punches is Differential compound motor. Cummulative compound motor. Series motor. Shunt motor. Differential compound motor. Cummulative compound motor. Series motor. Shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two transformers with identical rating, are designed with flux densities of 1.2 and 1.4 Wb / m2 respectively. The weight of first transformer per kVA is less than that of second transformer. none of these. more than that of second transformer. equal to that of second transformer. less than that of second transformer. none of these. more than that of second transformer. equal to that of second transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed depends on reactance load angle both 1and 2 voltage reactance load angle both 1and 2 voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The factors that are responsible for decrease in terminal voltage of a shunt generator are armature resistance, effect of armature reaction. armature resistance, inter poles, armature. reduction in field current, effect of armature reaction, armature. armature resistance, effect of armature reaction. armature resistance, effect of armature reaction. armature resistance, inter poles, armature. reduction in field current, effect of armature reaction, armature. armature resistance, effect of armature reaction. ANSWER DOWNLOAD EXAMIANS APP
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