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

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

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

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

anchors
bollard
buoys
cables

## 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

## 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

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