Question 3415Deck General70% to pass
A mobile offshore drilling unit will show the day-shape shown in illustration D010RR below to indicate which of the following?

AI Explanation
The correct answer is A) being towed.
The day-shape shown in illustration D010RR indicates that the mobile offshore drilling unit is being towed. This is in accordance with the International Regulations for Preventing Collisions at Sea (COLREGS), which require vessels being towed to display a black ball shape where it can best be seen.
The other answer choices are incorrect because the day-shape does not indicate the unit is aground (B), at anchor (C), or actively drilling (D). The specific day-shape is used to communicate the unit's status of being under tow to other vessels in the area.
Related Questions
#3413 The prohibition against displaying lights which may be confused with required navigation lights applies _______________.#3414 To determine what navigation lights and day-shapes must be displayed on mobile offshore drilling units under tow, you should check the _______________.#3416 After deploying the anchor, a permanent chain chaser is _______________.#3417 While going on location in 250 feet water depth when the pitch angle of the COASTAL DRILLER is 2 degrees, the single amplitude pitch period should be longer than _______________.#3418 The DEEP DRILLER is drilling on location at a 60 foot draft. Waves are approaching within 2 feet of the underside of the spider deck. You should _______________.