Question 2209 Deck Safety

The correct answer is B) peaks. The ship's peak tanks are particularly important for trimming the ship. These are the forward and aft tanks located at the bow and stern of the vessel, respectively. By filling or emptying the peak tanks, the ship's trim can be adjusted to optimize stability, seaworthiness, and propulsion efficiency. The other answer choices are incorrect because: A) domestics are tanks used for holding fresh water, sewage, or other domestic purposes; C) deeps are the main cargo holds; and D) settlers are tanks used for fuel or oil purification, not for trimming the vessel.