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 true but R is false.
A is false but R is true.
Both A and R are true but R is not the correct explanation of
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)
Manoeuvring lane + (2 × Bank clearance lane)
(2 × Manoeuvring lane) + (2 × Bank clearance lane + ship clearance lane)
Manoeuvring lane + (2 × Bank clearance lane) + ship clearance lane

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

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

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

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Docks and Harbor Engineering
Consider the following statements.
(i) Fender is the cushion provided on the face of the jetty for ships to come in contact,
(ii) Slip is the space of water area between two adjacent piers where ships are berthed,
(iii) Pier head is a structure constructed near the tip of a break water near the harbour entrance.
Of the statements

(i), (ii) and (iii) are correct
(i) and (iii) are correct
(ii) and (iii) are correct
(i) and (ii) are correct

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