Logic Gates, Boolean Algebra, ETC.

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Logic Gates, Boolean Algebra, ETC. - Quiz

Logic gate practice


Questions and Answers
  • 1. 

    A 74HC00 contains _________ gates.

    • A.

      NAND

    • B.

      AND

    • C.

      OR

    • D.

      NOT

    Correct Answer
    A. NAND
    Explanation
    A 74HC00 contains NAND gates. The 74HC00 is a quad 2-input NAND gate integrated circuit, meaning it contains four individual NAND gates within a single package. Each NAND gate has two inputs and one output, and its output is the inverse of the logical AND operation performed on its inputs. Therefore, the correct answer is NAND.

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  • 2. 

    A 74HC08 contains _________ gates.

    • A.

      NAND

    • B.

      AND

    • C.

      OR

    • D.

      NOT

    Correct Answer
    B. AND
    Explanation
    A 74HC08 contains AND gates.

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  • 3. 

    Determine the output:

    Correct Answer
    1
    Explanation
    The output is 1 because the given input is 1 and there are no operations or transformations applied to it. Therefore, the output remains the same as the input.

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  • 4. 

    Determine the output:

    Correct Answer
    0
  • 5. 

    A 74HC04 contains _________ gates.

    • A.

      AND

    • B.

      NOR

    • C.

      NOT

    • D.

      NAND

    Correct Answer
    C. NOT
    Explanation
    A 74HC04 contains NOT gates.

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  • 6. 

    A 74HC02 contains _________ gates.

    • A.

      NAND

    • B.

      NOR

    • C.

      NOT

    • D.

      AND

    Correct Answer
    B. NOR
    Explanation
    A 74HC02 is a type of integrated circuit that contains NOR gates. NOR gates are logic gates that produce an output only when both inputs are low. They are commonly used in digital circuits for various applications such as logic operations and memory storage. Therefore, the correct answer to the question is NOR.

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  • 7. 

    2-Input NAND Truth Table Output (Top to Bottom)

    Correct Answer
    1110
    Explanation
    The given truth table represents a 2-input NAND gate. In a NAND gate, the output is only low (0) when both inputs are high (1). In all other cases, the output is high (1). Looking at the truth table, we can see that for all four input combinations (00, 01, 10, 11), the output is high (1), except for the last combination where both inputs are high (1) and the output is low (0). Therefore, the answer is 1110.

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  • 8. 

    2-Input NOR Truth Table Output (Top to Bottom)

    Correct Answer
    1000
    Explanation
    The given NOR truth table has 2 inputs and 1 output. The top row represents the inputs, and the bottom row represents the output. In this case, the output is 1 when both inputs are 0, and it is 0 for all other combinations of inputs. Therefore, the correct answer is 1000, indicating that the output is 1 for the given input combination.

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  • 9. 

    2-Input AND Truth Table Output (Top to Bottom)

    Correct Answer
    0001
    Explanation
    The given truth table represents a 2-input AND gate. In an AND gate, the output is only true (1) when both inputs are true (1). Looking at the truth table, we can see that the output is 1 only when both inputs are 1, and it is 0 for all other combinations of inputs. Therefore, the correct answer is 0001, which indicates that the output is 1 when both inputs are 0 and 0, and 1 when both inputs are 1.

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  • 10. 

    2-Input OR Truth Table Output (Top to Bottom)

    Correct Answer
    0111
    Explanation
    The given truth table shows the output of a 2-input OR gate. The inputs are represented by the first two columns, and the output is represented by the last column. In this case, the output is "0111", which means that the OR gate produces a logic high (1) when at least one of the inputs is high. The first input is low (0), and the second input is high (1), so the output is high (1). The third and fourth inputs are both high (1), so the output remains high (1) in both cases. Therefore, the output sequence is "0111".

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  • 11. 

    XOR Truth Table Output (Top to Bottom)

    Correct Answer
    0110
    Explanation
    The given XOR truth table output is 0110. This means that when the two inputs to the XOR gate are 0 and 1, the output is 0. Similarly, when the inputs are 1 and 0, the output is 0. When the inputs are 0 and 0, the output is 1. And when the inputs are 1 and 1, the output is 0. Therefore, the XOR gate follows this pattern and the given output sequence matches the truth table for XOR.

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  • 12. 

    XNOR Truth Table Output (Top to Bottom)

    Correct Answer
    1001
    Explanation
    The XNOR truth table output is shown as 1001 from top to bottom. This means that the XNOR operation is performed on four inputs, resulting in an output of 1 when all four inputs are the same (either all 0s or all 1s), and an output of 0 when the inputs are not all the same. In this case, since the output is 1001, it implies that all four inputs are 1, indicating that the inputs are all the same and the XNOR operation returns a value of 1.

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  • 13. 

    A sine wave has a period of 10ms. f = ? (in Hertz)

    Correct Answer
    100
    Explanation
    The frequency of a sine wave is the number of complete cycles it completes in one second. Given that the period of the sine wave is 10ms, which is equivalent to 0.01 seconds, we can calculate the frequency by taking the reciprocal of the period. Thus, the frequency of the sine wave is 1/0.01 = 100 Hertz.

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  • 14. 

    A sine wave has a period of 20ms. f = ? (in Hertz)

    Correct Answer
    50
    Explanation
    The frequency of a sine wave is the number of complete cycles it completes in one second. Since the period of the sine wave is given as 20ms (milliseconds), we can calculate the frequency by taking the reciprocal of the period. Converting 20ms to seconds gives us 0.02s. Taking the reciprocal of 0.02s gives us a frequency of 50Hz (Hertz), which is the number of cycles per second.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 08, 2011
    Quiz Created by
    ELENWorkgroup
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