MCA Second Engineer Applied Heat Practice Questions - MCA Second Engineer - Applied Heat (SQA Written Examination, STCW III 2) Exam

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A mercury manometer shows a vacuum of 250 mm Hg below atmospheric pressure. Taking atmospheric pressure as 760 mm Hg and 760 mm Hg = 1.013 bar, what is the absolute pressure in the vessel?

0.333 bar abs 0.680 bar abs 0.760 bar abs 1.346 bar abs

Correct Answer:

0.680 bar abs

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