Docks and Harbor Engineering
As compared to wall type breakwater, mound type breakwater

Requires less material
Requires skilled labor
Results in less damage due to gradual failure
Requires low maintenance cost

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Docks and Harbor Engineering
Assertion A : Depth and width required at the entrance to a harbour are more than those required in the channel.Reason R : The entrance to a harbour is usually more exposed to waves as compared to the harbour itself.Select your answer based on the coding system given below:

Both A and R are true but R is not the correct explanation of
A is false but R is true.
A is true but R is false.
Both A and R are true and R is the correct explanation of

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Docks and Harbor Engineering
Assertion A : Depth and width required at the entrance to a harbour are more than those required in the channel.Reason R : The entrance to a harbour is usually more exposed to waves as compared to the harbour itself.Select your answer based on the coding system given below:

A is false but R is true.
A is true but R is false.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.

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Docks and Harbor Engineering
Assertion A : Marine structures are made specially bulky and strong.Reason R : Sea insects result in undermining of the hardest and the soundest building material.Select your answer based on the coding system given below:

Both A and R are true but R is not the correct explanation of
Both A and R are true and R is the correct explanation of
A is true but R is false.
A is false but R is true.

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