Surf
Clapotis
Fetch
Swell

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

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

groynes
revetments
sea walls
moles

## Docks and Harbor Engineering By increasing the rise of lock-gates,(i) The length of the lock gate will increase(ii) Transverse stress due to water pressure on the gate will increase(iii) Compressive force on the gate will increase

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

## Docks and Harbor Engineering A ship strikes the berth generally at an angle

45° with the face of the dock
30° with the face of the dock
10° with the face of the dock
90° with the face of the dock