Question 2390 Deck General

The correct answer is D) bollard pull. Bollard pull refers to the amount of force a tug can exert on a stationary object, such as another vessel or a dock. This is a crucial specification for tugs, as it determines their ability to maneuver and assist other vessels. The bollard pull is measured by having the tug pull against a fixed bollard, which measures the maximum thrust the tug can generate. The other answer choices (shaft horsepower, indicated horsepower, and brake horsepower) are related to the engine power of the tug, but do not directly reflect the tug's ability to exert force on a stationary object, which is what the question is asking about.