Extra exam question E6C10
Subelement E6, CIRCUIT COMPONENTS· Group E6C
E6C10
In Figure E6-3, which is the schematic symbol for a NOR gate?
- A.1
- B.2
- C.3
- D.4 (correct answer)
WhySymbol 4 in Figure E6-3 is the schematic symbol for a NOR gate. In Figure E6-3, symbol 4 shows the curved-back, pointed-front OR gate shape with a small bubble at its output, and that output bubble turns an OR gate symbol into a NOR (NOT-OR) gate, answer D. Symbol 3 is a plain OR gate without the bubble, symbol 2 is a NAND gate (AND shape with a bubble), and symbol 1 is a plain AND gate, none of which is the NOR gate being asked for.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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