Vessels A and B are identical except that vessel A receives overpressure protection from an installed safety valve.
Vessel B has an installed relief valve.
The safety and relief valves have the same pressure setpoint and design flow rate.
Water is continuously added to each vessel at the same rate (50 percent of the design flow rate of the safety and relief valves).
After vessel pressure reaches the setpoint for each valve, vessel A pressure will __________; and vessel B pressure will __________.
A. stabilize slightly above the pressure setpoint; stabilize slightly above the pressure setpoint
B. stabilize slightly above the pressure setpoint; fluctuate within a few percent of the pressure setpoint
C. fluctuate within a few percent of the pressure setpoint; stabilize slightly above the pressure setpoint
D. fluctuate within a few percent of the pressure setpoint; fluctuate within a few percent of the pressure setpoint
Show Answer
Answer: C
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