DC Motors Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors? Low cost Wide speed range Stability High starting torque Low cost Wide speed range Stability High starting torque ANSWER DOWNLOAD EXAMIANS APP
DC Motors Three point starter can be used for Shunt motor only Compound motor only Both shunt and compound motor Series motor only Shunt motor only Compound motor only Both shunt and compound motor Series motor only ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating winding is basically used in a dc machine To control the speed of machine To reduce armature reaction To improve commutation None of the listed here To control the speed of machine To reduce armature reaction To improve commutation None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The most suitable motor for elevators is the ____ motor. Differentially compuonded Shunt Series Cummulative compounded Differentially compuonded Shunt Series Cummulative compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors When two dc series motor are commected in parallel, the resultant speed is Zero Loss than the normal speed Normal speed More than the normal speed Zero Loss than the normal speed Normal speed More than the normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors The back emf in a dc motor ______ 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 Aids the applied voltage Aids the armature current ANSWER DOWNLOAD EXAMIANS APP
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