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

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

## Docks and Harbor Engineering Dead weight tonnage of a ship(i) varies with latitude and season(ii) is more than displacement tonnage(iii) is the difference between displacement load and displacement light of these statements

(i) and (iii) are correct
(ii) and (iii) are correct
(i) and (ii) are correct
Only (iii) is correct

## Docks and Harbor Engineering If H is the height of the wave expected, then the height of the breakwater is generally taken as

1.2 H to 1.25 H above the low water level
1.2 H to 1.25 H above the mean sea level
1.2 H to 1.25 H above the high water level
1.2 H to 1.25 H above the datum

0.34 VF
0.5 VF
3.4 VF
1.5 VF

## 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.
A is true but R is false.
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

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