Electrical Machines The output power of any electrical motor is taken from the Coupling mounted on the shaft. Field. Armature. Motor frame. Coupling mounted on the shaft. Field. Armature. Motor frame. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The residual magnetism of a self-excited dc generator is lost. To build up its emf again the armature connection must be reversed field winding must be excited by low voltage dc supply the field winding must be replaced the field winding connection must be reversed the armature connection must be reversed field winding must be excited by low voltage dc supply the field winding must be replaced the field winding connection must be reversed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Secondary winding of an auto transformer is also called common winding. tertiary winding. compensating winding. damping winding. common winding. tertiary winding. compensating winding. damping winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Resistance commutation is used generally in case of DC machines bellow 5 kW. fractional kW DC machines. DC machines above 10 kW. None of these DC machines bellow 5 kW. fractional kW DC machines. DC machines above 10 kW. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The coil spam can never be equal to pole pitch. may or may not be exactly equal to people pitch. none of above. must be exactly equal to people pitch. can never be equal to pole pitch. may or may not be exactly equal to people pitch. none of above. must be exactly equal to people pitch. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An inverted V-curve of synchronous motor shows the variation of power factor and dc excitation at constant load power factor and supply voltage during hunting supply voltage and field current at constant excitation All of these power factor and dc excitation at constant load power factor and supply voltage during hunting supply voltage and field current at constant excitation All of these ANSWER DOWNLOAD EXAMIANS APP
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