SEAM 2 Tutorial Week 16

If a vessel's compartment with low permeability is bilged, how does this affect the overall loss of buoyancy compared to a compartment with high permeability?

• Less loss of buoyancy

• Greater loss of buoyancy

• No change in buoyancy loss

• The ship will capsize

Given a compartment with machinery and fittings occupying 40% of its volume, evaluate the permeability and its effect on flooding.

• Permeability is 40%, leading to more flooding.

• Permeability is 60%, resulting in less flooding.

• Permeability is 60%, allowing more water to enter.

• Permeability is 100%, causing maximum flooding.

A ship's compartment is bilged but the overall displacement and KG remain unchanged. Synthesize the reason for this phenomenon.

• Water entering adds weight to the ship.

• Water entering replaces air or cargo, not adding weight.

• The ship's hull expands to accommodate more water.

• The ship's machinery compensates for the lost buoyancy.

Analyze why a reduction in metacentric height (GM) after bilging is dangerous for a vessel.

• It increases the vessel's speed.

• It reduces the vessel's ability to right itself, increasing capsize risk.

• It increases the vessel's freeboard.

• It lowers the vessel's draft.

Given two ships with identical hulls but different permeability values in their machinery spaces, evaluate which ship is more likely to survive flooding.

• Both have equal survivability.

• The ship with more cargo.

• The ship with higher permeability.

• The ship with lower permeability.

Analyze the consequences of bilging for hull stress and structural integrity.

• No effect on hull stress.

• Hull stress is transferred to the superstructure.

• Hull stress decreases, no risk of structural failure

• Hull stress increases, risking structural failure.

If a vessel's compartment with cargo is bilged, analyze how permeability affects the amount of water entering.

• More cargo means lower permeability, less water enters

• More cargo means higher permeability, more water enters.

• Permeability is unaffected by cargo.

• Permeability increases with more cargo.

Evaluate the relationship between permeability and broken stowage in a cargo hold.

• Higher broken stowage increases permeability.

• Lower broken stowage increases permeability.

• Broken stowage does not affect permeability.

• Higher broken stowage decreases permeability.

If a vessel's compartment is bilged and the permeability is 100%, evaluate the impact on the vessel.

• The vessel's stability is improved.

• The vessel's KG decreases.

• All available space fills with water, causing maximum buoyancy loss.

• Only a small available space fills with water, causing minimum buoyancy loss.

Analyze the effect of a bilged compartment on the vessel's freeboard.

• Freeboard increases as the ship sinks deeper.

• Freeboard decreases as the ship sinks deeper.

• Freeboard remains the same.

• Freeboard becomes negative.