Two mercury manometers one open-end and the other


Two mercury manometers, one open-end and the other sealed-end, are attached to an air duct. The reading on the open-end manometer is 28 mm and that on the sealed-end manometer is 809 mm.

What is the gauge pressure (mm Hg) in the duct?

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Basic Statistics: Two mercury manometers one open-end and the other
Reference No:- TGS01423579

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