Quiz # 1 Logic Gates

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| By Edmar
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Edmar
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Quizzes Created: 1 | Total Attempts: 722
Questions: 20 | Attempts: 727

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Logic Gate Quizzes & Trivia

Questions and Answers
  • 1. 

    The output is 1 if any or all of the inputs are 1

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    A. OR
    Explanation
    The OR gate is a logical gate that outputs a value of 1 if any or all of its inputs are 1. It is a basic logic gate that is commonly used in digital circuits. The OR gate follows the principle that if any input is 1, the output will be 1. If all inputs are 0, then the output will be 0. Therefore, in this case, the correct answer is OR because it satisfies the condition that the output is 1 if any or all of the inputs are 1.

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  • 2. 

    The output is 0 if and only if both inputs are 0.

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    A. OR
    Explanation
    The given statement suggests that the output will be 0 only when both inputs are 0. This behavior is consistent with the logical operation of the OR gate. In an OR gate, the output is 1 if at least one of the inputs is 1. However, if both inputs are 0, the output will be 0. Therefore, the correct answer is OR.

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  • 3. 

    The output is 1 if and only if both inputs are 1.

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    B. AND
    Explanation
    The AND gate is the correct answer because it only outputs 1 when both inputs are 1. In all other cases, it outputs 0. This gate is commonly used in digital circuits to combine multiple signals and produce a single output based on their logical conjunction.

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  • 4. 

    The output is 0 if any or all of the inputs are 0.

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    B. AND
    Explanation
    The AND gate is a logical gate that produces an output of 1 only when all of its inputs are 1. In this case, the explanation suggests that if any or all of the inputs are 0, the output will be 0. This aligns with the behavior of the AND gate because if any of the inputs are 0, the gate will not produce an output of 1. Therefore, the correct answer is AND.

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  • 5. 

    The output is 0 if any or all of the inputs are 1.

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    D. NOR
    Explanation
    The NOR gate is a logic gate that produces an output of 0 if any or all of its inputs are 1. It is the opposite of the OR gate, which produces an output of 1 if any of its inputs are 1. In the case of the given statement, the NOR gate is the correct answer because it satisfies the condition that the output is 0 if any or all of the inputs are 1.

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  • 6. 

    The output is 1 if and only if both inputs are 0.

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    D. NOR
    Explanation
    The NOR gate is the correct answer because it produces an output of 1 only when both inputs are 0. In other words, if either or both inputs are 1, the output will be 0. The NOR gate is the opposite of the OR gate, which produces an output of 1 if at least one input is 1. Therefore, the NOR gate satisfies the condition stated in the question.

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  • 7. 

    The output is always the opposite of the input.

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    C. NOT
    Explanation
    The NOT gate is the only gate that always produces the opposite output of its input. It takes a single input and produces the logical negation of that input. If the input is true, the output is false, and vice versa. Therefore, the statement "The output is always the opposite of the input" is true for the NOT gate.

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  • 8. 

    The output is 0 if the input is 1.

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    C. NOT
    Explanation
    The NOT gate is the correct answer because it outputs the opposite of the input. In this case, if the input is 1, the NOT gate will output 0.

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  • 9. 

    The output is 1 if the input is 0.

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    C. NOT
    Explanation
    The NOT gate is the correct answer because it produces an output that is the opposite of the input. In this case, if the input is 0, the NOT gate will output 1, fulfilling the given condition.

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  • 10. 

    The output is 0 if and only if both inputs are 1.

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    E. NAND
    Explanation
    The NAND gate is a logic gate that produces an output of 0 only when both of its inputs are 1. In all other cases, the output is 1. This means that if both inputs are 1, the output will be 0. Therefore, the statement "The output is 0 if and only if both inputs are 1" accurately describes the behavior of a NAND gate.

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  • 11. 

    The output is 1 if any or all of the inputs are 0.

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    E. NAND
    Explanation
    The NAND gate is a logic gate that produces an output of 1 only when both of its inputs are not 1. In this case, the explanation suggests that the output will be 1 if any or all of the inputs are 0. This aligns with the behavior of the NAND gate, as when any input is 0, the output will be 1 regardless of the state of the other input. Therefore, the NAND gate is the correct answer for this scenario.

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  • 12. 

    The output is 1 if the inputs are different.

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    F. XOR
    Explanation
    XOR (Exclusive OR) is a logical operation that returns a true value (1) if the inputs are different, and false (0) if they are the same. In other words, XOR only produces a true result when one input is true and the other is false. This makes it different from the other logical operators listed, such as OR, AND, NOT, NOR, NAND, and XNOR, which do not specifically check for different inputs. Therefore, XOR is the correct answer for this question.

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  • 13. 

    The output is 0 if the inputs re the same.

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    F. XOR
    Explanation
    XOR (exclusive OR) is the correct answer because it returns a value of 0 if the inputs are the same. In other words, if both inputs are either 0 or 1, the XOR operation will yield a result of 0. However, if the inputs are different (one is 0 and the other is 1), the XOR operation will produce a result of 1. Therefore, XOR is the logical operation that satisfies the given condition of returning 0 when the inputs are the same.

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  • 14. 

    The output is 0 if the inputs are different.

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    G. XNOR
    Explanation
    The XNOR gate is a logic gate that outputs a 1 only when the inputs are the same, otherwise it outputs a 0. In this case, the statement "The output is 0 if the inputs are different" aligns perfectly with the behavior of the XNOR gate. Therefore, the correct answer is XNOR.

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  • 15. 

    The output is 1 if the inputs are the same.

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    G. XNOR
    Explanation
    The XNOR gate is a logic gate that outputs 1 if the inputs are the same, and 0 if the inputs are different. In other words, it performs an exclusive NOR operation. Therefore, if the inputs to the XNOR gate are the same, the output will be 1, which aligns with the given statement in the question.

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  • 16. 

    A             B             F 0             0             0 0             1             1 1             0             1 1             1             1

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    A. OR
    Explanation
    The given table represents the truth table for a logical OR gate. In this gate, the output is true (1) if at least one of the inputs is true (1). If both inputs are false (0), the output is also false (0). Therefore, the correct answer is OR, as it accurately describes the logic observed in the truth table.

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  • 17. 

    A             B             F 0             0             1 0             1             0 1             0             0 1             1             0

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    D. NOR
    Explanation
    The given table represents the truth table for a logic gate. The inputs A and B are combined using the NOR gate. The NOR gate outputs a 1 only when both inputs are 0. In all other cases, it outputs a 0. Looking at the table, we can see that the output is 1 only when both inputs are 0. Therefore, the correct answer is NOR.

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  • 18. 

    A             B             F 0             0             1 0             1             0 1             0             0 1             1             0

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    D. NOR
    Explanation
    The given truth table represents the logical operation NOR. NOR is a binary operation that returns true if both inputs are false, otherwise it returns false. In the given truth table, the output is 1 only when both inputs A and B are 0. For all other combinations of inputs, the output is 0. Therefore, the correct answer is NOR.

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  • 19. 

    A             B             F 0             0             1 0             1             1 1             0             1 1             1             0

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    E. NAND
    Explanation
    The given truth table represents the logic gate operation of NAND. In NAND gate, the output is only 0 when both inputs are 1, otherwise, the output is always 1. Looking at the truth table, we can see that the output column matches the behavior of a NAND gate. Therefore, the correct answer is NAND.

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  • 20. 

    A             B             F 0             0             0 0             1             1 1             0             1 1             1             0

    • A.

      OR

    • B.

      AND

    • C.

      NOT

    • D.

      NOR

    • E.

      NAND

    • F.

      XOR

    • G.

      XNOR

    Correct Answer
    F. XOR
    Explanation
    The given table represents the truth table for the XOR gate. The XOR gate returns a true output only when the number of true inputs is odd. In this case, the output is true only when the inputs are different (1 and 0 or 0 and 1), and false when the inputs are the same (0 and 0 or 1 and 1). Therefore, the correct answer is XOR.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jun 10, 2013
    Quiz Created by
    Edmar
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