Refer to the drawing of a water storage tank with two differential pressure (D/P) level indicators (see figure below).
Two D/P level indicators are installed on a large water storage tank.
Indicator No. 1 was calibrated at 200°F water temperature and indicator No. 2 was calibrated at 100°F water temperature.
Assuming both indicators are on scale, which indicator will indicate the lower level?
A. Indicator 1 at all water temperatures.
B. Indicator 2 at all water temperatures.
C. Indicator 1 below 150°F, indicator 2 above 150°F.
D. Indicator 2 below 150°F, indicator 1 above 150°F.
Show Answer
Answer: B
Share your understanding of this question with the correct explanation.