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

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

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Docks and Harbor Engineering
Which of the following are repair docks ?

wet docks, floating docks, lift docks, marine railways
marine railways, dry docks, floating docks, wet docks
wet docks, lift docks, marine railways, dry docks
dry docks, wet docks, floating docks, lift docks

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