Question 3475 Deck General

70% to pass

While anchored in 700 feet of water, 3,150 feet of chain is deployed for line #4. Tension on that line is 200 kips. According to the DEEP DRILLER Operating Manual, how much of that chain lies along the bottom?

A 1,218 feet
B 1,398 feet
C 1,752 feet
D 1,844 feet
AI Explanation

The correct answer is B) 1,398 feet. To calculate the length of chain lying along the bottom, we can use the formula provided in the DEEP DRILLER Operating Manual, which takes into account the water depth and the total length of chain deployed. The formula is: Chain on bottom = Total chain - (Water depth / Scope ratio) Given: - Water depth: 700 feet - Total chain deployed: 3,150 feet - Scope ratio: Typically around 4.5:1 for good holding Plugging these values into the formula: Chain on bottom = 3,150 feet - (700 feet / 4.5) = 1,398 feet The other answer choices are incorrect because they do not accurately apply the formula or take into account the provided information.

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