On a sea going towing vessel of 150 gross tons, there are six (6) seamen in the deck crew. How many certificated able seamen are required if the voyage is over 600 miles?
• 46 CFR requirements for manning on seagoing towing vessels • Differences in AB (Able Seaman) requirements based on voyage length and vessel tonnage • How many ABs are required as a minimum percentage of the deck crew
• First, identify which part of 46 CFR covers manning and able seaman requirements for seagoing towing vessels over 100 gross tons on ocean/coastwise voyages. • Think about whether the regulation specifies a fixed number of ABs, or a fraction/percentage of the deck crew that must be certificated ABs. • Apply that rule to a deck crew of six seamen and calculate how many of them must be certificated ABs, then compare to the answer choices.
• Verify the correct CFR citation that applies specifically to seagoing towing vessels of 150 GRT on voyages over 600 miles. • Verify whether the rule uses a fraction (like one‑fourth, one‑third, or one‑half) of the deck crew as the standard for AB requirements. • Check that your final number is rounded correctly according to how the regulation treats fractions (e.g., "or major fraction thereof").
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