Author Question: Convert a reading of 18 inches Hg vacuum to psia. A) 18 in Hg + 30 = 48 psia (rounded) B) 30 - ... (Read 110 times)

acc299 · **on:** Jul 26, 2018

Convert a reading of 18 inches Hg vacuum to psia.

A) 18 in Hg + 30 = 48 psia (rounded)
B) 30 - 18 in Hg vacuum = 12 in Hg absolute (rounded)
12 in Hg absolute / 2 = 6 psia (rounded)
C) 30 + 18 in Hg vacuum = 48 in Hg absolute (rounded)
48 in Hg absolute / 2 = 24 psia (rounded)
D) 18 in Hg / 2 = 9 psia (rounded)

Question 2

Commercial refrigeration equipment for eggs, produce, and dairy uses:

A) Medium temperature evaporators. B) Low temperature evaporators.
C) Ultra low temperature evaporators. D) High temperature evaporators.