DC Motors For a D.C. shunt motor if the excitation is changed Torque will remain constant Torque and power both will change Torque will change but power will remain constant Torque, power and speed, all will change Torque will remain constant Torque and power both will change Torque will change but power will remain constant Torque, power and speed, all will change 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 Decrease Become zero Increase Remains same Decrease Become zero Increase ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a series motor at no load is 1000 rpm Infinity 4000 rpm 2000 rpm 1000 rpm Infinity 4000 rpm 2000 rpm ANSWER DOWNLOAD EXAMIANS APP
DC Motors Ward-Leonard control is basically a Voltage control method Armature resistance control method Field divertor method Field control method Voltage control method Armature resistance control method Field divertor method Field control method ANSWER DOWNLOAD EXAMIANS APP
DC Motors The armature torque of the D.C. shunt motor is proportional to field flux only armature current only None of these both (A) and (B) field flux only armature current only None of these both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motors is most suitable for signalling devices and many kinds of timers ? Reluctance motor C. series motor C. shunt motor Induction motor Reluctance motor C. series motor C. shunt motor Induction motor ANSWER DOWNLOAD EXAMIANS APP
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