Electronics Logic Gates Questions and Answers
Electronics Logic Gates questions with answers are key for mastering the fundamentals of digital circuits. These aptitude questions and answers help candidates preparing for ISRO, BEL, and GATE exams. Logic gates form the basis of all digital systems, including processors and memory devices. By practicing aptitude questions with explanations, learners understand how AND, OR, NOT, NAND, and NOR gates perform Boolean operations. This topic enhances analytical thinking and prepares students for technical interviews and competitive electronics exams.
Electronics Logic Gates
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17 questions
1. The output will be a LOW for any case when one or more inputs are zero in a(n):
- OR gate
- NOT gate
- AND gate
- NAND gate
2. If a signal passing through a gate is inhibited by sending a low into one of the inputs, and the output is HIGH, the gate is a(n):
- AND
- NAND
- NOR
- OR
3. A single transistor can be used to build which of the following digital logic gates?
- AND gates
- OR gates
- NOT gates
- NAND gates
4. The logic gate that will have HIGH or "1" at its output when any one of its inputs is HIGH is a(n):
- OR gate
- AND gate
- NOR gate
- NOT gate
6. Exclusive-OR (XOR) logic gates can be constructed from what other logic gates?
- OR gates only
- AND gates and NOT gates
- AND gates, OR gates, and NOT gates
- OR gates and NOT gates
7. How many truth table entries are necessary for a four-input circuit?
- 4
- 8
- 12
- 16
8. A NAND gate has:
- LOW inputs and a LOW output
- HIGH inputs and a HIGH output
- LOW inputs and a HIGH output
- None of the these
9. The basic logic gate whose output is the complement of the input is the:
- OR gate
- AND gate
- INVERTER gate
- comparator
10. What input values will cause an AND logic gate to produce a HIGH output?
- At least one input is HIGH.
- At least one input is LOW.
- All inputs are HIGH.
- All inputs are LOW.