Docks and Harbor Engineering
Which of the following type of sea walls results in greatest protection of shore structures?

stepped sea wall
sea wall with concave face
sea wall with batter
vertical sea wall

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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

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

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Docks and Harbor Engineering
The maximum harbour depth below lowest low water is generally equal to(i) loaded draft + 1.2 m when bottom is rock(ii) loaded draft + 1.8 m when bottom is soft(iii) loaded draft + 1.2 m when bottom is soft(iv) loaded draft + 1.8 m when bottom is rock

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

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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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