DC Motors A compensating winding is an auxiliary winding embedded in slots in The armature Partly in pole faces, partly in armature None of the listed here The pole faces of main poles The armature Partly in pole faces, partly in armature None of the listed here The pole faces of main poles ANSWER DOWNLOAD EXAMIANS APP
DC Motors The direction of rotation of a D.C. series motor can be changed by Either of (A) and (B) above None of these Interchanging field terminals Interchanging supply terminals Either of (A) and (B) above None of these Interchanging field terminals Interchanging supply terminals ANSWER DOWNLOAD EXAMIANS APP
DC Motors When the armature of a D.C. motor rotates, e.m.f. induced is None of these Mutually induced e.m.f. Back e.m.f. Self-induced e.m.f. None of these Mutually induced e.m.f. Back e.m.f. Self-induced e.m.f. ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. machines the residual magnetism is of the order of 50 to 75 percent 20 to 25 percent 2 to 3 percent 10 to 15 percent 50 to 75 percent 20 to 25 percent 2 to 3 percent 10 to 15 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors The variable resistor shunting the field of a dc series motor is called a Field divertor Armature divertor Voltage regulator Potential divider Field divertor Armature divertor Voltage regulator Potential divider ANSWER DOWNLOAD EXAMIANS APP
DC Motors Armature reaction in dc motor is increased When the armature current increases By interpoles When the field current increases When the armature current decreases When the armature current increases By interpoles When the field current increases When the armature current decreases ANSWER DOWNLOAD EXAMIANS APP
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