DC Motors A dc series motor is that which Can be started easily without load Has a poor torque Has almost constant speed Has its field winding consisting of thick wire and less turns Can be started easily without load Has a poor torque Has almost constant speed Has its field winding consisting of thick wire and less turns ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motors is most suitable for signalling devices and many kinds of timers ? C. series motor Reluctance motor C. shunt motor Induction motor C. series motor Reluctance motor C. shunt motor Induction motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors ______ motor has the best speed regulation. Shunt Series Cummulative compounded Differentially compounded Shunt Series Cummulative compounded Differentially compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. machines the residual magnetism is of the order of 50 to 75 percent 2 to 3 percent 10 to 15 percent 20 to 25 percent 50 to 75 percent 2 to 3 percent 10 to 15 percent 20 to 25 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors Dc series motors are used in those applications where _____ is required. High starting torque None of the listed here Constant speed Low no load speed High starting torque None of the listed here Constant speed Low no load speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens Motor will come to stop Nothing will happen to motor This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses This will make armature to take heavy current, possibly burning it Motor will come to stop Nothing will happen to motor This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses This will make armature to take heavy current, possibly burning it ANSWER DOWNLOAD EXAMIANS APP
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