Water storage tanks A and B are identical except that tank A receives overpressure protection from a relief valve, whereas tank B uses a safety valve.
The relief valve and safety valve have the same pressure setpoints and design flow rates.
Water is continuously added to each tank at the same rate (50 percent of the design flow rate of the relief and safety valves).
After the tanks are completely full, tank A pressure will __________; and tank B pressure will __________.
A. fluctuate within a few percent of the pressure setpoint; stabilize slightly above the pressure setpoint
B. fluctuate within a few percent of the pressure setpoint; fluctuate within a few percent of the pressure setpoint
C. stabilize slightly above the pressure setpoint; stabilize slightly above the pressure setpoint
D. stabilize slightly above the pressure setpoint; fluctuate within a few percent of the pressure setpoint
Show Answer
Answer: D
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