A cooling water system pressure detector uses a bourdon tube as the sensing element.
Which one of the following explains how the indicated system pressure will be affected if a local steam leak raises the temperature of the bourdon tube by 50°F?
(Assume the cooling water system pressure does not change.)
A. Indicated pressure will decrease because the bourdon tube will become more flexible.
B. Indicated pressure will increase because the bourdon tube will become more flexible.
C. Indicated pressure will decrease because the bourdon tube internal pressure will increase.
D. Indicated pressure will increase because the bourdon tube internal pressure will increase.
Show Answer
Answer: B
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