Question 1838 Deck Safety

70% to pass

In illustration D033DG below, which letter indicates a longitudinal?

Diagram for USCG Deck Safety: In illustration D033DG below, which letter indicates a longitudinal?
A M
B E
C C
D L
AI Explanation

The correct answer is D. The letter 'L' in illustration D033DG indicates a longitudinal, which is a structural member that runs lengthwise along the vessel. Longitudinals provide longitudinal strength and rigidity to the hull of the vessel. This is a standard concept in naval architecture and shipbuilding that is tested on US Coast Guard Captain's License Examinations. The other answer choices are incorrect because 'M' indicates a margin, 'E' indicates an edge, and 'C' indicates a cross-section, none of which are longitudinals.

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Official Resources
46 CFR Lifesaving Equipment USCG Marine Safety Center USCG National Maritime Center
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