Coast Guard Exams
Question 1772Deck General70% to pass

On small passenger vessels, what type of devices are required at both the tank and engine connections of all internal combustion engine fuel lines?

AI Explanation
The correct answer is B) Shut-off valves. On small passenger vessels, the regulations require shut-off valves to be installed at both the tank and engine connections of all internal combustion engine fuel lines. These shut-off valves allow the fuel supply to be quickly and easily isolated in the event of a leak or other emergency, which is a critical safety feature for small passenger vessels. The other answer choices, such as clean-out plates, fuel gauges, and drain valves, are not required at these specific locations on the fuel lines.

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