Question 286Safety & Environmental - 1st Asst/Chief70% to pass
As an engineer, you should be familiar with the conditions that will cause a vessel to transversely incline, list, or trim. Which of the following conditions causes a vessel to trim?
AI Explanation
The correct answer is B) Fore and aft shift of G.
A vessel will trim when there is a shift in the center of gravity (G) in the fore-and-aft direction. This change in the longitudinal position of G creates a trimming moment that causes the vessel to rotate around its transverse axis, resulting in a change in the fore-and-aft draft.
The other options are incorrect because:
A) Off-center weight will cause the vessel to list, not trim.
C) The combination of off-center weight and negative GM can cause both listing and trimming, but is not the primary cause of trimming.
D) Negative GM alone will not cause trimming, but rather a change in the vessel's stability.
Related Questions
#284 If a vessel initially has no list and no significant trim, which of the developments shown in the illustration will result in the greatest list? Illustration SF-0025 #285 While serving as Chief Engineer on a partially loaded container ship the vessel is involved in a collision. An empty starboard side wing tank becomes open to the sea and the ship takes a starboard list. After investigating the damage it is found that no other adjoining tanks are open to the sea. What action should be recommended to ensure the ship maintains an even keel position? #287 The difference between the initial trim of a vessel and the trim after a change in load has occurred is known as _______________.#288 The difference between the starboard and port drafts due to wind or seas is called _______________.#289 Your vessel is loading cargo and you are monitoring the stability and trim. Currently, the Longitudinal Center of Buoyancy (LCB) is vertically aligned and below the Longitudinal Center of Gravity (LCG). The Longitudinal Center of Flotation (LCF) is aft of both of these. How is the vessel trimming?