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

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

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

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

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Docks and Harbor Engineering
In a two lane channel, bottom width of channel is given by

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

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