A manometer is attached to a vacuum pump, which results in unequal pressure between each of the two arms. How is the vacuum measured?
A) A gauge attaches to the bottom of the manometer.
B) The movement of fluid in each side is compared.
C) The side that is open to the atmosphere is gauged.
D) The side that is attached to the vacuum is gauged.
B
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Fill in the blank(s) with the appropriate word(s).
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