Electrical Machines A dc shunt generator has full-load voltage regulation of 10% at rated speed of 1000 rpm. If it is now driven at 1250 rpm, then its voltage regulation at full load would remain unchanged be less than 10% be 12.5% be more than 10% remain unchanged be less than 10% be 12.5% be more than 10% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the DC Motor use flywheel? Differently compared motor. Cumulatively compound motor. Series motor. Shunt motor. Differently compared motor. Cumulatively compound motor. Series motor. Shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator frame in an induction motor is used to provide return path for the flux. protect the whole machine. ventilate the armature. hold armature stamping in position. provide return path for the flux. protect the whole machine. ventilate the armature. hold armature stamping in position. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Winding conductors of an electrical power transformer are mainly insulated by wooden insulation. paper insulation. cotton insulation. rubber insulation. wooden insulation. paper insulation. cotton insulation. rubber insulation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3-phase induction motor, if the supply voltage and frequency are reduced by the same ratio, then slip at which maximum torque occurs is more and maximum torque decreases less and maximum torque decreases more and maximum torque remains constant less and maximum torque increases more and maximum torque decreases less and maximum torque decreases more and maximum torque remains constant less and maximum torque increases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine the armature mmf is stationary with respect to armature. rotating with respect to field poles. stationary with respect to field poles. rotating with respect to field poles as well as armature. stationary with respect to armature. rotating with respect to field poles. stationary with respect to field poles. rotating with respect to field poles as well as armature. ANSWER DOWNLOAD EXAMIANS APP
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