Docks and Harbor Engineering
If ‘Hs’ is the significant wave height, then the average wave height and highest wave height respectively are given by

1.27 Hs and 1.67 Hs
0.6 Hs and 1.67 Hs
1.27 Hs and 1.87 Hs
0.6 Hs and 1.87 Hs

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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.

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

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

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