Question 2227 Deck Safety

A) tension is the correct answer. When a vessel is stationary and in a hogging condition, the main deck is under tension. This is because in a hogging condition, the center of the vessel is higher than the ends, causing the main deck to curve upward. This puts the upper portions of the vessel, including the main deck, under tensile stress as they are being stretched. The other answer choices are incorrect because: B) racking refers to shear stress from lateral forces, not the vertical stresses present in a hogging condition. C) shear refers to the stress along the vertical axis, not the horizontal stresses on the main deck. D) compression would apply to the lower portions of the vessel that are being pushed together, not the main deck that is being stretched.