Technician exam question T6B01
Subelement T6, ELECTRONIC AND ELECTRICAL COMPONENTS· Group T6B
Which is true about forward voltage drop in a diode?
- A.It is lower in some diode types than in others (correct answer)
- B.It is proportional to peak inverse voltage
- C.It indicates that the diode is defective
- D.It has no impact on the voltage delivered to the load
WhyA diode's forward voltage drop is lower in some diode types than in others. Different diode types, silicon, germanium, Schottky, are built from different semiconductor materials and junction designs, which gives each type its own characteristic forward voltage drop, so the drop is lower in some types than others, answer A. It isn't proportional to peak inverse voltage (B, a separate rating entirely), a normal forward drop doesn't indicate a defect (C), and it does affect the voltage actually delivered to a load (D), since that drop is subtracted from the source voltage.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2026-2030 NCVEC Element 2 pool (public domain); the explanation above is original writing, see our methodology.
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