DC Motors Which of the following methods gives the greatest braking torque? Rheostatic braking None of the listed here Plugging Regenerative braking Rheostatic braking None of the listed here Plugging Regenerative braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors Differentially compound D.C. motors can find applications requiring Low starting torque Variable speed High starting torque Frequent on-off cycles Low starting torque Variable speed High starting torque Frequent on-off cycles ANSWER DOWNLOAD EXAMIANS APP
DC Motors These days dc motors are widely used in Machine shops Air compressors Pumping sets Electric traction Machine shops Air compressors Pumping sets Electric traction ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. machines the residual magnetism is of the order of 10 to 15 percent 20 to 25 percent 2 to 3 percent 50 to 75 percent 10 to 15 percent 20 to 25 percent 2 to 3 percent 50 to 75 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors For constant torque drive which speed control method is preferred? Armature voltage control Field control Shunt armature control Mechanical loading system Armature voltage control Field control Shunt armature control Mechanical loading system ANSWER DOWNLOAD EXAMIANS APP
DC Motors During rheostat braking of dc series motor Motor is run at reduced speed None of the listed here Motor is run as a generator Motor is reversed in direction Motor is run at reduced speed None of the listed here Motor is run as a generator Motor is reversed in direction ANSWER DOWNLOAD EXAMIANS APP
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