Electrical (A6)Question 74 of 120
Technician A says a diode allows current to flow in only one direction. Technician B says alternators use diodes to rectify AC into DC. Who is correct?
a.Technician A only
b.Technician B only
c.Neither A nor B
d.Both A and B
Explanation
A diode conducts in one direction only, and the alternator's diode (rectifier) bridge converts the stator's AC into the DC the vehicle uses. Both statements are correct. A shorted or open diode causes low output and AC ripple on the charging system.
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