Docks and Harbor Engineering
Which of the following structures are constructed parallel to shore line to develop a demarcating line between land area and water area?

Sea walls, bulk heads and revetments
Bulk heads, revetments and groynes
Sea walls, revetments and groynes
Sea walls, bulk heads and groynes

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Docks and Harbor Engineering
Assertion A : Basin walls have to be of much grater height than dock walls.Reason R : Tidal basins are subject to fluctuations of levels due to tidal variations.Select your answer based on the coding system given below:

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

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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:

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

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Docks and Harbor Engineering
Assertion A : Large size stones are required in stone revetment in shore protection.Reason R : Resistance of stone to wave force is proportional to its volume and wave force is proportional to the exposed area of the stone.Select your answer based on the coding system given below.

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

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