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    How much do you know about Technical Drawing?

    In piping plan drawing (P&ID), what does the symbol of a circle with a cross inside it represent?

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    Gate valve.
    Bomba.
    Measuring instrument.Correct
    Heat exchanger.

    A circle with a cross inside it is a generic symbol for a measuring instrument on a P&ID diagram (Piping and Instrumentation Diagram).

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