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

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Docks and Harbor Engineering
In basins subjected to strong winds and tide, the length of the berthing area should not be less than

The length of design vessel
The length of design vessel + 20% clearance between adjacent vessels
Twice the length of design vessel
The length of design vessel + 10% clearance between adjacent vessels

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

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