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

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

A is false but R is true.
Both A and R are true but R is not a correct explanation of
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
In a two lane channel, bottom width of channel is given by

(2 × Manoeuvring lane) + (2 × Bank clearance lane + ship clearance lane)
Manoeuvring lane + (2 × Bank clearance lane) + ship clearance lane
(2 × Manoeuvring lane) + (2 × Bank clearance lane)
Manoeuvring lane + (2 × Bank clearance lane)

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