DC Motors D.C. generators are normally designed for maximum efficiency around Rated r.p.m. Rated voltage Full load All of these Rated r.p.m. Rated voltage Full load All of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors Dc series motors are used in those applications where _____ is required. Low no load speed High starting torque None of the listed here Constant speed Low no load speed High starting torque None of the listed here Constant 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 4.76% 2.22% 6.77% 8.85% 4.76% 2.22% 6.77% 8.85% ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a dc motor is to be selected for conveyors, which motor would be preferred? Differentially compound motor Series motor Shunt motor Cummulative compound motor Differentially compound motor Series motor Shunt motor Cummulative compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors ______ motors never use belt connected loads. Cummulative compounded Series Differentially compounded Shunt Cummulative compounded Series Differentially compounded Shunt ANSWER DOWNLOAD EXAMIANS APP
DC Motors Carbon brushes are preferable to copper brushes because _____ They have lower resistance They reduce armature reaction They have longer life They reduce sparking They have lower resistance They reduce armature reaction They have longer life They reduce sparking ANSWER DOWNLOAD EXAMIANS APP
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