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Marine Seamanship

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Questions and Answers

What is the purpose of seasonal Load Line marks?

To mark the waterline of the vessel in different seasons

To indicate the maximum draft a vessel can safely have in different seasons (correct)

To indicate the maximum speed a vessel can have in different seasons

To calculate the cargo capacity of a ship in different seasons

What is the purpose of Fresh water marks?

To mark the waterline of the vessel in fresh water conditions

To indicate the maximum speed a vessel can have in fresh water conditions

To indicate the maximum draft allowance due to water density (correct)

To calculate the cargo capacity of a ship in fresh water conditions

Where did the concept of the Plimsoll mark originate?

Spain

England (correct)

France

Italy

What did Samuel Plimsoll devise to calculate the capacity of a ship?

<p>A formula to determine how much cargo each vessel could safely handle in stormy waters</p> Signup and view all the answers

Why were overloaded merchant ships referred to as 'coffin ships' by sailors in the 1800s?

<p>They were so overloaded that one good storm could sink them</p> Signup and view all the answers

Study Notes

Load Line Marks

Seasonal Load Line marks indicate the safe load limits of a ship based on the density of the water it operates in, with separate marks for saltwater, freshwater, and tropical freshwater.
Fresh water marks indicate the maximum load a ship can carry in freshwater, which is less dense than saltwater, to prevent overloading.

The Plimsoll Mark

The concept of the Plimsoll mark originated in the UK in the 1870s.
Samuel Plimsoll, a British politician, devised a system to calculate the capacity of a ship, which led to the development of the Plimsoll mark.

Overloaded Merchant Ships

Overloaded merchant ships in the 1800s were referred to as 'coffin ships' by sailors due to the high risk of sinking and loss of life.

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Description

Test your knowledge of marine seamanship with this quiz on load lines and fresh water allowance. Explore the purpose of seasonal load line marks, identify various load line marks, and understand their position relative to the Plimsoll mark. Master the principles of fresh water allowance to enhance your understanding of trim, stability, and stress in marine operations.