DC Motors Which D.C. motor is generally preferred for cranes and hoists? Differentially compounded motor Cumulatively compounded motor Shunt motor Series motor Differentially compounded motor Cumulatively compounded motor Shunt motor Series motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. motor which of the following can sustain the maximum temperature rise? Commutator Slip rings Armature winding Field winding Commutator Slip rings Armature winding Field winding ANSWER DOWNLOAD EXAMIANS APP
DC Motors Three point starter can be used for Compound motor only Shunt motor only Series motor only Both shunt and compound motor Compound motor only Shunt motor only Series motor only Both shunt and compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The back emf in a dc motor ______ Aids the applied voltage Aids the armature current None of the listed here Opposes the applied voltage Aids the applied voltage Aids the armature current None of the listed here Opposes the applied voltage ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motor is preferred for operation in highly explosive atmosphere? Shunt motor Series motor Battery operated motor Air motor Shunt motor Series motor Battery operated motor Air motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. shunt motor is working at no load and if shunt field circuit suddenly opens Motor will run at very slow speed This will make armature to take heavy current, possibly burning it Nothing will happen to the motor This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Motor will run at very slow speed This will make armature to take heavy current, possibly burning it Nothing will happen to the motor This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses ANSWER DOWNLOAD EXAMIANS APP
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