Refer to the drawing of a reactor vessel differential pressure (D/P) level detection system that was calibrated at normal operating conditions (see figure below).
A reactor vessel cooldown has resulted in a decrease in reactor vessel pressure from 900 psia to 400 psia in one hour.
Without density compensation of the level instrumentation, at the end of the cooldown reactor vessel level indication would indicate __________ than actual level because the density of the water in the __________ has changed significantly.
A. higher; reference leg
B. higher; reactor vessel
C. lower; reference leg
D. lower; reactor vessel
Show Answer
Answer: B
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