DC Motors Flywheel is used with D.C. compound motor to reduce the peak demand by the motor, compound motor will have to be Cumulatively compounded Differentially compounded Level compounded Under compounded Cumulatively compounded Differentially compounded Level compounded Under compounded ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor should be used for centrifugal pumps? Shunt motor Either series or shunt None of the listed here Series motor Shunt motor Either series or shunt None of the listed here Series motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors For a D.C. shunt motor if the excitation is changed Torque will change but power will remain constant Torque and power both will change Torque, power and speed, all will change Torque will remain constant Torque will change but power will remain constant Torque and power both will change Torque, power and speed, all will change Torque will remain constant 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 result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Nothing will happen to the motor This will make armature to take heavy current, possibly burning it Motor will run at very slow speed This will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses Nothing will happen to the motor This will make armature to take heavy current, possibly burning it ANSWER DOWNLOAD EXAMIANS APP
DC Motors In dc machines fractional pitch winding is used To reduce the sparking To increase the generated emf To reduce the generated emf To improve cooling To reduce the sparking To increase the generated emf To reduce the generated emf To improve cooling ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Remains same Increase Become zero Decrease Remains same Increase Become zero Decrease ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS