Question 1170 Deck General

The correct answer is C) They must be conspicuously marked. The requirement for remote manual shutdown stations for internal combustion engine driven cargo pumps on tank barges is that they must be conspicuously marked. This is specified in the regulations under 46 CFR 39.20-9, which states that remote manual shutdown stations must be "conspicuously marked." The other answer choices are incorrect because they do not accurately reflect the regulatory requirement. There is no specific requirement for a minimum of two shutdown devices, a 10-foot distance from the engine, or the use of stuffing boxes for the valve rods. The key regulation is that the shutdown stations must be clearly visible and identifiable.