Logic Gates MCQs
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Avg score: 44% • Most missed: “Exclusive-OR (XOR) logic gates can be constructed from ...........logic gates.”
Logic Gates MCQs
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20 Questions

1. In Boolean algebra, the bar sign (-) indicates ....................
2. Both OR and AND gates can have only two inputs.
3. The inverter is ...............
4. When an input signal 1 is applied to a NOT gate, the output is ..................
5. The basic logic gate whose output is the complement of the input is .............
6. The output will be a LOW for any case when one or more inputs are zero in a/an ............
7. The universal gate is ..................
8. A NAND gate has ........ inputs and ....... output.
9. The NAND gate is AND gate followed by .....................
10. Digital circuit can be made by the repeated use of ..................
11. ............. NAND circuits are contained in a 7400 NAND IC.
12. The NOR gate is OR gate followed by ..................
13. Exclusive-OR (XOR) logic gates can be constructed from ...........logic gates.
14. The only function of NOT gate is to .................
15. The inputs of a NAND gate are connected together. The resulting circuit is .............
16. A single transistor can be used to build .............. gates .
17. The logic gate that will have HIGH or “1” at its output when any one of its inputs is HIGH is a/an ............... gate.
18. ........... truth table entries are necessary for a four-input circuit.
19. An OR gate has 4 inputs. One input is high and the other three are low. The output is .......
20. ........... input values will cause an AND logic gate to produce a HIGH output.

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