Convert a reading of 18 inches Hg vacuum to psia. A) 18 in Hg ...

[acc299]

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.

[shailee]

Answer to Question 1

B

Answer to Question 2

A

[acc299]

TYSM

[coreycathey]

Gracias!