DC Motors At the instant of starting when a D.C. motor is put on supply, it behaves like A highly resistive circuit A low resistance circuit A capacitive circuit None of these A highly resistive circuit A low resistance circuit A capacitive circuit None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following law can be used to determine the direction of rotation of dc motor? Fleming's left hand rule Lenz's law Coloumb's law Faraday's law Fleming's left hand rule Lenz's law Coloumb's law Faraday's law ANSWER DOWNLOAD EXAMIANS APP
DC Motors A compensating winding is an auxiliary winding embedded in slots in The pole faces of main poles None of the listed here Partly in pole faces, partly in armature The armature The pole faces of main poles None of the listed here Partly in pole faces, partly in armature The armature ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is best suited for driving Machine tools None of the listed here Shear and punches Cranes and hoists Machine tools None of the listed here Shear and punches Cranes and hoists ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Increase Decrease Become zero Remains same Increase Decrease Become zero Remains same ANSWER DOWNLOAD EXAMIANS APP
DC Motors As there is no back e.m.f. at the instant of starting a D.C. motor, in order to prevent a heavy current from flowing though the armature circuit A resistance is connected in series with armature A high value resistor is connected across the field winding Armature is temporarily open circuited A resistance is connected parallel to the armature A resistance is connected in series with armature A high value resistor is connected across the field winding Armature is temporarily open circuited A resistance is connected parallel to the armature ANSWER DOWNLOAD EXAMIANS APP
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