At a gauge pressure of 28.9"Hg, the equivalent reading on a micron gauge is about __________ microns.
A. 24, 500
B. 25, 400
C. 42, 500
D. 54, 200
Answer: B
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The efficiency of a solar heating system converting1,200 W of power into 192 W of electrical power is:?
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Explain general notes and identify their typical location on a print.
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