DC Motors Three point starter can be used for Shunt motor only Both shunt and compound motor Compound motor only Series motor only Shunt motor only Both shunt and compound motor Compound motor only Series motor only ANSWER DOWNLOAD EXAMIANS APP
DC Motors When the speed of dc motor increases, its armature current Increases Decreases None of the listed here Remains same Increases Decreases None of the listed here Remains same ANSWER DOWNLOAD EXAMIANS APP
DC Motors When two dc series motor are commected in parallel, the resultant speed is Loss than the normal speed Normal speed Zero More than the normal speed Loss than the normal speed Normal speed Zero More than the normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors The plugging gives the Highest torque braking Smallest torque braking None of the listed here Zero torque braking Highest torque braking Smallest torque braking None of the listed here Zero torque braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors As there is no back e.m.f. at the instant of starting a D.C. motor, in order to prevent a heavy current from flowing though the armature circuit A high value resistor is connected across the field winding A resistance is connected parallel to the armature A resistance is connected in series with armature Armature is temporarily open circuited A high value resistor is connected across the field winding A resistance is connected parallel to the armature A resistance is connected in series with armature Armature is temporarily open circuited ANSWER DOWNLOAD EXAMIANS APP
DC Motors Excessive motor vibration is caused by Too much brush tension Bent shaft Worn bearings Open armature coil Too much brush tension Bent shaft Worn bearings Open armature coil ANSWER DOWNLOAD EXAMIANS APP
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