Docks and Harbor Engineering
Which of the following structures are constructed parallel to shore line to develop a demarcating line between land area and water area?

Sea walls, revetments and groynes
Sea walls, bulk heads and groynes
Bulk heads, revetments and groynes
Sea walls, bulk heads and revetments

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Docks and Harbor Engineering
Assertion A : Depth and width required at the entrance to a harbour are more than those required in the channel.Reason R : The entrance to a harbour is usually more exposed to waves as compared to the harbour itself.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 the correct explanation of
A is true but R is false.

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

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

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