??? 8343.A certain direct current series motor mounted within an aircraft draws more amperes during start than when it is running under its rated load. The most logical conclusion that may be drawn is
发布于 2021-04-14 07:47:13
【单选题】 A ???? the starting winding is shorted. B ???? the brushes are floating at operating RPM because of weak brush springs. C ???? the condition is norma! for this type of motor.
