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