Question 503Electricity & Electronics - Assistant Engineer

The correct answer is D) The F+ and F- leads are disconnected from the alternator field. The F+ lead is connected to the positive terminal of the battery, and the F- lead is connected to the negative terminal. This is the correct procedure for flashing the field to restore the residual magnetism in a self-excited alternator. By applying a voltage from the battery across the field windings (F+ to positive, F- to negative), a current is induced that remagnetizes the field, allowing the alternator to start producing voltage again. The other options are incorrect because they either involve the wrong leads (S+ and S- instead of F+ and F-), or they connect the leads in the wrong polarity, which would not properly restore the residual magnetism.