DC Motors By looking at which part of the motor, it can be easily confirmed that a particular motor is D.C. motor? Commutator Shaft Frame Stator Commutator Shaft Frame Stator ANSWER DOWNLOAD EXAMIANS APP
DC Motors The rheostatic speed control method is very Suitable for getting speeds above the normal Unsuitable for rapidly changing loads Economical Efficient Suitable for getting speeds above the normal Unsuitable for rapidly changing loads Economical Efficient ANSWER DOWNLOAD EXAMIANS APP
DC Motors A series motor will over speed when The load is increase The field is opened Load is removed The armature circuit is opened. The load is increase The field is opened Load is removed The armature circuit is opened. ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Nothing will happen to motor This will make armature to take heavy current, possibly burning it Motor will come to stop This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Nothing will happen to motor This will make armature to take heavy current, possibly burning it Motor will come to stop ANSWER DOWNLOAD EXAMIANS APP
DC Motors The plugging gives the None of the listed here Highest torque braking Smallest torque braking Zero torque braking None of the listed here Highest torque braking Smallest torque braking Zero torque braking ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is best suited for driving Machine tools None of the listed here Cranes and hoists Shear and punches Machine tools None of the listed here Cranes and hoists Shear and punches ANSWER DOWNLOAD EXAMIANS APP
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