Question 3295 Deck General

The correct answer is C) riser tensioning system. To prevent the riser system from buckling under its own weight, upward tension is provided by the riser tensioning system. The riser tensioning system applies tension to the riser, counteracting the downward force of gravity and preventing the riser from collapsing or buckling. The other options are incorrect because they do not directly address the issue of preventing riser buckling. Guideline tensioning systems and guideline stabilizers are not responsible for providing upward tension to the riser, while riser stabilizers are more focused on lateral stability rather than vertical tension.