DC Motors Which of the following motors is most suitable for signalling devices and many kinds of timers ? Reluctance motor C. series motor Induction motor C. shunt motor Reluctance motor C. series motor Induction motor C. shunt motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. series motors are used Where load is constant Where load changes frequently None of these Where constant operating speed is needed Where load is constant Where load changes frequently None of these Where constant operating speed is needed ANSWER DOWNLOAD EXAMIANS APP
DC Motors The back emf in a dc motor ______ Aids the applied voltage Opposes the applied voltage Aids the armature current None of the listed here Aids the applied voltage Opposes the applied voltage Aids the armature current None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The compensating winding is connected in Series with armature Series-parallel with armature Parallel with armature None of the listed here Series with armature Series-parallel with armature Parallel with armature None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors For constant torque drive which speed control method is preferred? Mechanical loading system Armature voltage control Shunt armature control Field control Mechanical loading system Armature voltage control Shunt armature control Field control ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which D.C. motor is generally preferred for cranes and hoists? Series motor Cumulatively compounded motor Differentially compounded motor Shunt motor Series motor Cumulatively compounded motor Differentially compounded motor Shunt motor ANSWER DOWNLOAD EXAMIANS APP
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