Which of the following represents the lowest vacuum?
A) 10 psia.
B) 5 in. Hg vacuum.
C) 5 psig.
D) 1000 microns.

Question

Quizplus · Accepted Answer

1000 microns represents a lower vacuum level compared to the other options. Vacuum levels are often measured in microns, where lower numbers indicate a higher vacuum. In contrast, psia (pounds per square inch absolute) and psig (pounds per square inch gauge) are pressure measurements, and inches of mercury (in. Hg) vacuum is less direct for comparing vacuum levels without conversion to an absolute scale like microns.

Which of the Following Represents the Lowest Vacuum