Refer to the drawing of a water storage tank with a differential pressure (D/P) level detection system (see figure below).
The level instrument has just been calibrated to indicate actual tank water level.
Assume that tank water temperature and level remain constant.
If the reference leg temperature increases by 20°F, indicated tank water level will…
A. be unpredictable.
B. equal the actual level.
C. be less than the actual level.
D. be greater than the actual level.
Show Answer
Answer: B
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