Ship handling 1070

What is the primary factor that causes the continuous movement of sea or ocean currents?

• Wind

• Marine life

• Ship movements

• Icebergs

How do breaking waves contribute to the movement of ocean currents?

• By increasing the water temperature

• By creating turbulence and driving water movement

• By reducing salinity differences

• By stabilizing the water's surface

What role does the Coriolis effect play in the movement of ocean currents?

• It increases the temperature of seawater

• It causes the currents to change direction due to Earth's rotation

• It decreases the salinity of seawater

• It prevents currents from forming

How do temperature differences influence ocean currents?

• By causing water to evaporate quickly

• By creating density variations that drive the flow of seawater

• By decreasing water pressure

• By reducing wind strength

Why are salinity differences important in the formation of ocean currents?

• They cause changes in water color

• They create density gradients that drive water movement

• They increase water acidity

• They prevent the formation of waves

What is the term used to describe the uninterrupted distance that the wind blows over the ocean?

• Drift

• Fetch

• Span

• Range

How does the length of the fetch affect the size of the waves?

• It has no effect

• Longer fetch creates smaller waves

• Longer fetch creates larger and more powerful waves

• Shorter fetch creates larger waves

What does the term 'windage area' refer to?

• The total surface area of the ocean

• The area of the ship submerged underwater

• The exposed area of the ship where the effect of wind is more prominent

• The surface area of the ship's deck

Which type of vessel is more affected by wind due to having a large freeboard?

• Tanker ships

• Fishing boats

• Container ships and Ro-Ro ships

• Submarines

What impact does the location of the center of the windage area have on a ship's stability?

• It has no impact on stability

• A lower center of windage area increases stability

• A higher center of windage area can lead to greater heeling moments, causing the ship to tilt

• A higher center of windage area improves stability