Chapter 3 & 4 warship construction

What does the waterline (WL) displace?

• The weight of the hull and its contents

• The total weight of the ship only

• The buoyancy of the ship

• The volume of water in the ocean

What effect does separating the hull into watertight compartments have?

• Improves fuel efficiency

• Affects the distribution of displacement

• Reduces the overall weight

• Increases the ship's speed

What is the condition called when a ship's upper deck is under compression due to wave motion?

• Hogging

• Sagging

• Racking

• Torsion

What happens to the keel area of a ship during hogging?

• It sinks

• It remains unaffected

• It experiences compression

• It experiences tension

What type of stress is experienced by the uppermost deck during sagging?

• Compression

• Tension

• Shear

• Bending

What is the primary load carried by a ship?

• Personnel

• Water

• Fuel

• Cargo

What does racking refer to in the context of ship dynamics?

• Twisting of the hull

• Tension in the hull

• Distortion of the cross-sectional shape

• Compression of the hull

What is the opposite effect of sagging called?

• Compression

• Torsion

• Hogging

• Racking

What type of force causes torsion in a ship's hull?

• Longitudinal forces

• Rotational forces

• Transverse forces

• Vertical forces

What is the effect of wave crests supporting the ends of a ship?

• Torsion

• Racking

• Hogging

• Sagging