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Output Y of a three-input logic circuit when all inputs are first low and then high

The same question, asked 3 times: 10 May 2023 S1*, 19 Apr 2025 S2*, 14 May 2026 S2. Every wording below, oldest first.

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  1. Question 1

    10 May 2023 S1

    24
    What is the output Y in the following circuit, when all the three inputs A, B, C are first 'zero' and then 'one'?

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  2. Question 2

    19 Apr 2025 S2

    12
    In a given logic circuit, the output Y when all the three inputs A, B, C are first low and then high will be respectively

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  3. Question 3

    14 May 2026 S2

    149
    The output Y, when all the three inputs are first high and then low, will respectively be

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