DC Motors If the speed of a dc shunt motor is increased the back emf of the motor will Become zero Decrease Remains same Increase Become zero Decrease Remains same Increase ANSWER DOWNLOAD EXAMIANS APP
DC Motors What will happen if the back emf of a dc motor vanishes suddenly? The armature may burn The motor will stop The motor will continue to run The motor will run noisy The armature may burn The motor will stop The motor will continue to run The motor will run noisy 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 More than the normal speed Normal speed Zero Loss than the normal speed More than the normal speed Normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors The plugging gives the Zero torque braking Smallest torque braking Highest torque braking None of the listed here Zero torque braking Smallest torque braking Highest torque braking None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Ward-Leonard control is basically a Armature resistance control method Field divertor method Voltage control method Field control method Armature resistance control method Field divertor method Voltage control method Field control method ANSWER DOWNLOAD EXAMIANS APP