Electrical Machines Which of the following DC generators has rising V-I characteristics? Compound. Series. None of them. Shunt. Compound. Series. None of them. Shunt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An electric motor with constant output power will have a torque speed characteristics in the form of a Rectangular hyperbola Circle about the origin. Straight line parallel to the speed axis. Straight line through the origin. Rectangular hyperbola Circle about the origin. Straight line parallel to the speed axis. Straight line through the origin. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, the ripples in the direct emf generated are reduced by employing commutator with large number of segments. equalizer rings. carbon brushes. graphite brushes. commutator with large number of segments. equalizer rings. carbon brushes. graphite brushes. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutators in DC machines have a role of which converts Both AC to DC and DC to AC. high voltage DC to low voltage DC. none of these. AC to DC. Both AC to DC and DC to AC. high voltage DC to low voltage DC. none of these. AC to DC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The basic function of a transformer is to change the power level the power factor the level of the voltage the frequency the power level the power factor the level of the voltage the frequency ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the applied voltage to a dc machine is 230 V, then the back emf, for maximum power developed, is 460 V 115 V 230 V 200 V 460 V 115 V 230 V 200 V ANSWER DOWNLOAD EXAMIANS APP
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