Electrical Machines The demagnetising component of armature reaction in a DC generator increases armature speed. reduces inter poles flux density. reduces generator emf. results in sparking trouble. increases armature speed. reduces inter poles flux density. reduces generator emf. results in sparking trouble. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinson test is conducted under which of the following condition? full load any of the above half load no load full load any of the above half load no load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The condition for maximum running torque is unity 0.5 lagging zero 0.707 lagging R = S.X unity 0.5 lagging zero 0.707 lagging R = S.X ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 stack stepper motor has 12 teeth on stator as well as on rotor. Determine the step size when each stack excited? 10°. 24°. 30°. 45°. 10°. 24°. 30°. 45°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Equalizer rings are used in which of the followings? both 1 and 2 lap winding wave winding None of these both 1 and 2 lap winding wave winding None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lamination of transformer core is made of cast steel. cast iron. silicon steel. wrought iron. cast steel. cast iron. silicon steel. wrought iron. ANSWER DOWNLOAD EXAMIANS APP
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