DOCKS AND HARBOR ENGINEERING QUIZ

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

(ii) and (iii) are correct

Only (iii) is correct

(i) and (iii) are correct

(i) and (ii) are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following type of sea walls results in greatest protection of shore structures?

sea wall with concave face

sea wall with batter

stepped sea wall

vertical sea wall

TRUE ANSWER : ?
YOUR ANSWER : ?

The significant wave height is defined is the average height of the

one – fourth highest waves

one – tenth highest waves

one – fifth highest waves

one – third highest waves

TRUE ANSWER : ?
YOUR ANSWER : ?

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.

Both A and R are true and R is the correct explanation of

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

A is false but R is true.

TRUE ANSWER : ?
YOUR ANSWER : ?

When a wave strikes a vertical breakwater in deep water, it is reflected back and on meeting another advancing wave of similar amplitude merges and rises vertically in a wall of water. This phenomenon is called

Surf

Swell

Fetch

Clapotis

TRUE ANSWER : ?
YOUR ANSWER : ?

In a two lane channel, bottom width of channel is given by

Manoeuvring lane + (2 × Bank clearance lane) + ship clearance lane

(2 × Manoeuvring lane) + (2 × Bank clearance lane)

(2 × Manoeuvring lane) + (2 × Bank clearance lane + ship clearance lane)

Manoeuvring lane + (2 × Bank clearance lane)

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a fixed type mooring accessory ?

buoys

cables

bollard

anchors

TRUE ANSWER : ?
YOUR ANSWER : ?

Assertion A : Intervention of undulations in the sea bed reduces the depth of wave at the section.Reason R : No wave can have a height greater than the depth of water through which it passes.Select your answer based on the coding system given below:

Both A and R are true and R is correct explanation of A.

A is false but R is true.

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

A is true but R is false.

TRUE ANSWER : ?
YOUR ANSWER : ?

Assertion A : Large size stones are required in stone revetment in shore protection.Reason R : Resistance of stone to wave force is proportional to its volume and wave force is proportional to the exposed area of the stone.Select your answer based on the coding system given below.

Both A and R are true and R is the correct explanation of A.

A is false but R is true.

A is true but R is false.

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

TRUE ANSWER : ?
YOUR ANSWER : ?

Assertion A : Basin walls have to be of much grater height than dock walls.Reason R : Tidal basins are subject to fluctuations of levels due to tidal variations.Select your answer based on the coding system given below:

Both A and R are true and R is the correct explanation of A.

A is false but R is true.

A is true but R is false.

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

TRUE ANSWER : ?
YOUR ANSWER : ?