DC Motors Dc series motors are used in those applications where _____ is required. None of the listed here Constant speed High starting torque Low no load speed None of the listed here Constant speed High starting torque Low no load speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors When two dc series motor are commected in parallel, the resultant speed is Loss than the normal speed More than the normal speed Zero Normal speed Loss than the normal speed More than the normal speed Zero Normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors For constant torque drive which speed control method is preferred? Armature voltage control Mechanical loading system Shunt armature control Field control Armature voltage control Mechanical loading system Shunt armature control Field control ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following methods gives the greatest braking torque? None of the listed here Regenerative braking Rheostatic braking Plugging None of the listed here Regenerative braking Rheostatic braking Plugging ANSWER DOWNLOAD EXAMIANS APP
DC Motors The friction and windage losses in a dc motor depends upon Field and armature resistance Flux Armature current Speed Field and armature resistance Flux Armature current Speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which one of the following is not the function of pole shoes in a D.C. machine? To support the field coils To reduce the reluctance of the magnetic path To reduce eddy current loss To spread out flux for better uniformity To support the field coils To reduce the reluctance of the magnetic path To reduce eddy current loss To spread out flux for better uniformity ANSWER DOWNLOAD EXAMIANS APP
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