Question 3015Deck General70% to pass
Which space(s) is(are) deducted from gross tonnage to derive net tonnage?
AI Explanation
The correct answer is B) Chart room.
The chart room is not deducted from the gross tonnage to derive the net tonnage. Gross tonnage includes the entire enclosed volume of the vessel, while net tonnage excludes certain spaces such as the engine room, crew quarters, navigational spaces, etc. The chart room, being a navigational space, is not deducted from the gross tonnage.
The other options are incorrect because:
A) Open structures are not enclosed spaces and therefore not included in the gross tonnage calculation.
C) Companions and booby hatches are also not deducted from the gross tonnage to derive net tonnage.
D) Not all of the listed spaces are deducted from gross tonnage.
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