Refer to the drawing of a water storage tank with a differential pressure (D/P) level detector (see figure below).
The level detector is being used in a level control system that is calibrated to maintain tank level at 75 percent at the current water temperature of 90°F.
If water temperature gradually increases and stabilizes at 120°F, the level control system will cause actual tank level to…
A. remain at 75 percent.
B. increase and stabilize above 75 percent.
C. oscillate around 75 percent.
D. decrease and stabilize below 75 percent.
Show Answer
Answer: B
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