Question 4279 Deck General

70% to pass

When removing the cap from a sounding tube on a MODU, the sound of air escaping indicates the tank _______________.

A level has dropped
B may be partially flooded
C is completely flooded
D is full
AI Explanation

The correct answer is B) the tank may be partially flooded. When removing the cap from a sounding tube on a mobile offshore drilling unit (MODU), the sound of air escaping indicates that the tank is not completely full or empty. This suggests that the tank is partially flooded, as the air escaping signifies that the tank is not at atmospheric pressure, which would be the case if the tank were completely full or empty. The other options are incorrect because: A) a dropping tank level would not cause air to escape, C) a completely flooded tank would not allow air to escape, and D) a full tank would not have air escaping when the cap is removed.

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