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WJEC GCSE Electronics combinational logic quiz quiz

15questions. Pick an answer and you'll see why right away.

  1. In digital logic, a signal can be:

  2. A NOT gate (inverter) gives an output of:

  3. An AND gate outputs 1 when:

  4. An OR gate outputs 0 only when:

  5. A NAND gate is equivalent to:

  6. A NOR gate outputs 1 only when:

  7. An XOR (exclusive-OR) gate outputs 1 when:

  8. For a logic circuit with 3 inputs, how many rows does the truth table have?

  9. A combinational logic circuit is one whose output depends on:

  10. In Boolean algebra, which symbol means AND?

  11. The Boolean expression A · 1 simplifies to:

  12. Why is the NAND gate described as universal?

  13. How can a NAND gate be made to act as a NOT gate?

  14. Why is simplifying a Boolean expression useful?

  15. An output must be 1 only when BOTH conditions A and B are true. Which gate is needed?