Refer to the drawing of two water storage tanks with four differential pressure (D/P) level detectors (see figure below).
The tanks are identical and are being maintained at 17 psia and 70 percent water level (calibration conditions).
They are located in a building that is currently at atmospheric pressure.
If the building ventilation system creates a vacuum in the building, which level detectors will provide the lowest level indications?
A. 1 and 3
B. 1 and 4
C. 2 and 3
D. 2 and 4
Show Answer
Answer: B
Share your understanding of this question with the correct explanation.