DC Motors Dc series motors are used in those applications where _____ is required. High starting torque Constant speed Low no load speed None of the listed here High starting torque Constant speed Low no load speed None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor Is to be de-rated by a factor recommended by manufacturer and select the next higher H.P. motor Can be used for 50°C ambient temperature also Of higher H.P. should be selected Of lower H.P. should be selected Is to be de-rated by a factor recommended by manufacturer and select the next higher H.P. motor Can be used for 50°C ambient temperature also Of higher H.P. should be selected Of lower H.P. should be selected ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. series motors are used Where load is constant None of these Where constant operating speed is needed Where load changes frequently Where load is constant None of these Where constant operating speed is needed Where load changes frequently ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. generators are normally designed for maximum efficiency around Full load Rated voltage All of these Rated r.p.m. Full load Rated voltage All of these Rated r.p.m. ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a series motor at no load is 4000 rpm 1000 rpm Infinity 2000 rpm 4000 rpm 1000 rpm Infinity 2000 rpm ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. motor which of the following can sustain the maximum temperature rise? Armature winding Slip rings Commutator Field winding Armature winding Slip rings Commutator Field winding ANSWER DOWNLOAD EXAMIANS APP
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