SETS 6000 Stability

Question 1

• AThis is a situation used to describe gentle rolling.
• BThis is a term used to describe violent rolling.
• CThis is a term used to describe pitching and rolling.
• DThis a dangerous condition that occurs when the ship's still water period and the apparent wave period are equal.

Question 2

• AA couple is formed when two equal parallel forces are acting in opposite directions.
• BA couple is formed when two unequal forces in a vertical position are acting in the same direction.
• CA couple is formed by joining two vertical posts together.
• DA couple is formed when two unequal parallel forces are acting in the same direction.

Question 3

• AIt is the basic stability information a vessel is required to carry by law.
• BIt is the relationship between the moment of a couple and the righting moment.
• CIt is another name for the metacentric height.
• DIt is the ability of a vessel to return to her initial or upright position, after having been forcibly inclined.

Question 4

• AThis expresses KM as moving away off the centreline at large angles of heel.
• BIt is just another name for metacentre.
• CIt is the ability of a vessel to return to an upright position.
• DIt is the term used to indicate a vessel has a more than adequate GM.

Question 5

• AIt is the expression used to describe a vessel, that is in the most stable condition possible.
• BIt is the expression used to describe the transfer of buoyancy, from one side to the other, when a vessel heels.
• CIt is the measure of the work that is done when the vessel is inclined by external forces.
• DIt is the energy generated by a rolling vessel.