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 true but R is false.
A is false but R is true.
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
In basins subjected to strong winds and tide, the length of the berthing area should not be less than

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

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