List and Trim

Multiple Choice

Which of the following factors should be considered when creating a cargo stowage and loading/discharging plan for a ship?

• Initial and final conditions of the ship

• Load capacity and limitations

• Cargo specifications

• All of the above

Open Ended

Why is understanding basic stability, trim, and stress important for seafarers when managing a ship?

Open Ended

Explain why it is necessary to consider the position of G (center of gravity) in the transverse sense as well as the vertical when analyzing ship stability.

Multiple Select

Which of the following statements are correct regarding the causes of list and heel in ships?

• List is due to uneven weight distribution within the ship.

• Heel is due to external forces such as wind or waves.

• List is due to external forces.

• Heel is due to uneven weight distribution within the ship.

Multiple Choice

What is the difference between 'list' and 'heel' in the context of ship stability?

• List is caused by internal weight distribution, while heel is caused by external forces.

• List is caused by external forces, while heel is caused by internal weight distribution.

• Both list and heel are caused by external forces.

• Both list and heel are caused by internal weight distribution.

Multiple Choice

When a ship is floating upright with G and B on the center line, what will happen if a weight 'w' is placed on one side?

• The ship will develop a list.

• The ship will remain upright.

• The ship will sink immediately.

• The ship will move forward.

Open Ended

Describe the initial condition of the ship as shown in the diagram when calculating list caused by a transverse shift of weight.

Multiple Choice

What happens to the center of gravity (G) when a weight already on board a ship is shifted transversely across the deck?

• G moves parallel and in the same direction as the shift of the center of gravity of the weight.

• G moves in the opposite direction to the shift of the weight.

• G remains stationary.

• G moves vertically upwards.

Open Ended

Describe the sequence of changes that occur to the ship's center of gravity and center of buoyancy when a weight is shifted transversely across the deck, as shown in the diagrams.

Multiple Select

Which of the following variables are required to calculate the distance G moves off the center line (GG_H) when a weight is shifted transversely on a ship?

• Weight shifted (w)

• Distance shifted (d)

• Displacement of the ship (W)

• Metacentric height (GM)

Multiple Choice

A ship initially upright displaces 12000 t and has KG 6.7 m and KM 7.3 m. A weight of 60 t already on board is shifted 14 m horizontally across the deck. Calculate the resulting angle of list.

• 0.4°

• 2.8°

• 4.1°

• 1.2°

Multiple Choice

What is the formula to calculate the metacentric height (GM) given the values of KM and KG?

• GM = KM + KG

• GM = KM - KG

• GM = KG - KM

• GM = KM × KG

Multiple Select

Which of the following are components of the movement of G to G1 when a weight is shifted both vertically and horizontally on a ship?

• GGV (vertical component)

• GGH (horizontal component)

• GM (metacentric height)

• KM (height of metacenter above keel)

Open Ended

List the steps involved in calculating the resultant list when a weight is shifted both vertically and horizontally on a ship initially upright.

Open Ended

Explain the process and reasoning behind calculating the final KG and GM after a weight is shifted on a ship.

Multiple Select

Which of the following steps are necessary to calculate the list caused by a transverse and vertical shift of weight on a ship?

• Calculate the new KG after shifting the weight

• Determine the final GM

• Find the GGH (horizontal shift)

• Ignore the vertical shift of weight

Multiple Choice

What is the final list of the ship if a 40 t weight is shifted from the lower hold (Kg 2.20 m, 4.00 m to port) to the deck (Kg 11.4 m, 2.6 m to starboard) given the ship's displacement is 12200 t, KG is 6.36 m, and KM is 7.62 m?

• 1.0° starboard

• 2.0° port

• 0.5° starboard

• 1.5° port

Open Ended

How do you think understanding trim, stability, and stresses can impact the safety and efficiency of cargo operations on a ship?

Multiple Choice

What is one of the main objectives of the course as described in the course outcome?

• To create a cargo stowage plan considering ship's conditions and limitations

• To learn about maritime history

• To study marine biology

• To design new types of ships