DC Motors Which D.C. motor is generally preferred for cranes and hoists? Series motor Shunt motor Differentially compounded motor Cumulatively compounded motor Series motor Shunt motor Differentially compounded motor Cumulatively compounded motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Decrease Become zero Remains same Increase Decrease Become zero Remains same Increase ANSWER DOWNLOAD EXAMIANS APP
DC Motors The rheostatic speed control method is very Unsuitable for rapidly changing loads Suitable for getting speeds above the normal Efficient Economical Unsuitable for rapidly changing loads Suitable for getting speeds above the normal Efficient Economical ANSWER DOWNLOAD EXAMIANS APP
DC Motors In which of the following tests only one motor is required? Swinburne's test Brake test Field's test Hopkinson's test Swinburne's test Brake test Field's test Hopkinson's test ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. shunt motor is working at full load and if shunt field circuit suddenly opens Nothing will happen to motor This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Motor will come to stop This will make armature to take heavy current, possibly burning it Nothing will happen to motor This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Motor will come to stop This will make armature to take heavy current, possibly burning it ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is that which Can be started easily without load Has its field winding consisting of thick wire and less turns Has a poor torque Has almost constant speed Can be started easily without load Has its field winding consisting of thick wire and less turns Has a poor torque Has almost constant speed ANSWER DOWNLOAD EXAMIANS APP
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