Refer to the drawing of a water storage tank with two differential pressure (D/P) level indicators (see figure below).
Indicator 1 was calibrated at 200°F and indicator 2 was calibrated at 100°F.
If tank water temperature is 150°F, then…
A. indicator 1 will read greater than indicator 2.
B. indicator 2 will read greater than indicator 1.
C. indicators 1 and 2 will read the same.
D. both indicators will be inaccurate, but it is impossible to predict which indicator will read greater.
Show Answer
Answer: A
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