DC Motors Which of the following in a dc motor, can sustain the maximum temperature rise? Armature winding Commutator Slip rings Field winding Armature winding Commutator Slip rings Field winding ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. shunt motors as load is reduced The speed will increase abruptly The speed will increase in proportion to reduction in load The speed will reduce The speed will remain almost/constant The speed will increase abruptly The speed will increase in proportion to reduction in load The speed will reduce The speed will remain almost/constant ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. shunt motor is working at no load and if shunt field circuit suddenly opens This will make armature to take heavy current, possibly burning it This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Nothing will happen to the motor Motor will run at very slow speed This will make armature to take heavy current, possibly burning it This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Nothing will happen to the motor Motor will run at very slow speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors When two dc series motor are commected in parallel, the resultant speed is Zero Normal speed More than the normal speed Loss than the normal speed Zero Normal speed More than the normal speed Loss than the normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. series motors are used Where load changes frequently Where load is constant Where constant operating speed is needed None of these Where load changes frequently Where load is constant Where constant operating speed is needed None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors The running speed of a dc series motor is basically determined by Load Armature reaction Field excitation None of the listed here Load Armature reaction Field excitation None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS