A differential pressure detector is being used with an orifice plate to measure water flow rate through a pipe.
When the flow instrument was last calibrated, the following parameters were observed:
Since the calibration, debris has collected in the orifice such that the actual flow rate through the orifice has decreased to 80 gpm while the upstream and downstream pressures have changed to 135 psig and 110 psig, respectively.
What is the approximate flow rate that is currently indicated by the flow instrument?
A. 125 gpm
B. 133 gpm
C. 156 gpm
D. 167 gpm
Show Answer
Answer:D
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