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:

Both A and R are true and R is the correct explanation of
A is false but R is true.
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 ?

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

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

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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) + ship clearance lane
(2 × 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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