Deck General USCG Question #5443 (Set 170)

When comparing twin screw tug to single-screw tugs, which statement about a twin-screw tug is FALSE?

Official USCG Answer & Rule Citation

Correct Answer: Option B — It develops more bollard pull for the same horsepower.

Single-screw tugs generally develop higher bollard pull per unit of horsepower compared to twin-screw configurations due to reduced hull interference and larger propeller diameter efficiency, making the claim of superior twin-screw pull false.

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