A differential pressure flow detector is connected to a calibrated orifice in a cooling water system.
Which one of the following will cause indicated volumetric flow rate to be lower than actual volumetric flow rate?
A. System pressure decreases.
B. The orifice erodes over time.
C. Debris becomes lodged in the orifice.
D. A leak develops in the low pressure sensing line.
Show Answer
Answer:B
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