DC Motors A compensating winding is an auxiliary winding embedded in slots in The armature Partly in pole faces, partly in armature None of the listed here The pole faces of main poles The armature Partly in pole faces, partly in armature None of the listed here The pole faces of main poles ANSWER DOWNLOAD EXAMIANS APP
DC Motors At the instant of starting when a D.C. motor is put on supply, it behaves like A low resistance circuit A highly resistive circuit A capacitive circuit None of these A low resistance circuit A highly resistive circuit A capacitive circuit None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors Carbon brushes are preferable to copper brushes because _____ They have lower resistance They have longer life They reduce armature reaction They reduce sparking They have lower resistance They have longer life They reduce armature reaction They reduce sparking ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Increase Become zero Remains same Decrease Increase Become zero Remains same Decrease ANSWER DOWNLOAD EXAMIANS APP
DC Motors Differentially compound D.C. motors can find applications requiring Frequent on-off cycles High starting torque Low starting torque Variable speed Frequent on-off cycles High starting torque Low starting torque Variable speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a motor falls from 1100 r.p.m. at no-load to 1050 r.p.m. at rated load. The speed regulation of the motor is 2.22% 6.77% 4.76% 8.85% 2.22% 6.77% 4.76% 8.85% ANSWER DOWNLOAD EXAMIANS APP
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