DC Motors If a dc motor is comnected across the AC supply it will Run at lower speed Run at normal speed Burn due to heat produced in the field winding by eddy currents Not run Run at lower speed Run at normal speed Burn due to heat produced in the field winding by eddy currents Not run ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. generator, the iron losses mainly take place in Armature conductors Commutator Armature rotor Yoke Armature conductors Commutator Armature rotor Yoke ANSWER DOWNLOAD EXAMIANS APP
DC Motors At the instant of starting when a D.C. motor is put on supply, it behaves like None of these A capacitive circuit A low resistance circuit A highly resistive circuit None of these A capacitive circuit A low resistance circuit A highly resistive circuit ANSWER DOWNLOAD EXAMIANS APP
DC Motors The iron loss in dc motor depends on Flux only Both flux and speed None of the listed here Speed only Flux only Both flux and speed None of the listed here Speed only ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motor has the poorest speed regulation? Differentially compound motor Shunt motor Series motor Cummulative compound motor Differentially compound motor Shunt motor Series motor Cummulative compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The torque developed by a dc motor is directly proportional to Armature resistance × applied voltage Armature resistance × armature current Flux per pole × armature current None of the listed here Armature resistance × applied voltage Armature resistance × armature current Flux per pole × armature current None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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