Question 3451 Deck General

The correct answer is B) turn off all lights that interfere with the navigation lights. When a jack-up drilling rig is being towed, it is considered a vessel under tow. According to the Navigation Rules, a vessel under tow must display the appropriate navigation lights to indicate its status. Any lights on the rig that could interfere with the visibility of the required navigation lights must be turned off to avoid confusion for other vessels in the area. The other answer choices are incorrect because they do not address the specific requirement to turn off interfering lights. Ringing the bell, displaying black diamonds, or turning on all available deck lights are not the proper procedures for a jack-up rig under tow.