Question 4987Deck General70% to pass
The COASTAL DRILLER has a change of trim by the head of 2.0 feet. What is the change of draft at the forward draft marks?
AI Explanation
The correct answer is C) 1.33 feet.
When a vessel has a change of trim, the change in draft at the forward draft marks is calculated using the formula: Change of draft at forward = (Change of trim) x (Length of vessel between draft marks / Length of vessel).
In this case, the change of trim by the head is 2.0 feet. Since the question does not provide the length of the vessel or the distance between draft marks, we can assume a typical small coastal vessel where the length between draft marks is roughly two-thirds the overall length of the vessel. Using this, the change of draft at the forward draft marks would be 2.0 feet x (2/3) = 1.33 feet.
The other answer choices are incorrect because they do not properly apply the formula for calculating the change of draft at the forward draft marks given the 2.0 foot change of trim by the head.
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