DC Motors The commutating winding is basically used in a dc machine To control the speed of machine To reduce armature reaction To improve commutation None of the listed here To control the speed of machine To reduce armature reaction To improve commutation None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be More than full-load current Less than full-load current Almost negligible Rated full-load current More than full-load current Less than full-load current Almost negligible Rated full-load current ANSWER DOWNLOAD EXAMIANS APP
DC Motors These days dc motors are widely used in Air compressors Electric traction Pumping sets Machine shops Air compressors Electric traction Pumping sets Machine shops ANSWER DOWNLOAD EXAMIANS APP
DC Motors For a D.C. shunt motor if the excitation is changed Torque will remain constant Torque, power and speed, all will change Torque will change but power will remain constant Torque and power both will change Torque will remain constant Torque, power and speed, all will change Torque will change but power will remain constant Torque and power both will change ANSWER DOWNLOAD EXAMIANS APP
DC Motors The armature torque of the D.C. shunt motor is proportional to both (A) and (B) None of these armature current only field flux only both (A) and (B) None of these armature current only field flux only ANSWER DOWNLOAD EXAMIANS APP
DC Motors The direction of rotation of a D.C. series motor can be changed by None of these Either of (A) and (B) above Interchanging supply terminals Interchanging field terminals None of these Either of (A) and (B) above Interchanging supply terminals Interchanging field terminals ANSWER DOWNLOAD EXAMIANS APP
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