DOCKS AND HARBOR ENGINEERING QUIZ

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

stepped sea wall

sea wall with batter

sea wall with concave face

vertical sea wall

TRUE ANSWER : ?
YOUR ANSWER : ?

For designing the dock, the proportion of ship load assumed to be borne by keel blocks is

43959

43967

43906

43898

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following structures are constructed parallel to shore line to develop a demarcating line between land area and water area?

Sea walls, bulk heads and groynes

Sea walls, bulk heads and revetments

Sea walls, revetments and groynes

Bulk heads, revetments and groynes

TRUE ANSWER : ?
YOUR ANSWER : ?

Consider the following statements in regard to Beaufort scale for wind speeds,(i) The Beaufort number ranges from 1 to 12.(ii) Higher Beaufort number indicates higher speed of wind,(iii) Beaufort number for calm is smallest and for hurricane is highest Of these statements

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

(i) and (ii) are correct

(ii) and (iii) are correct

(i) and (iii) are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

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 (ii) are correct

(i) and (iii) are correct

Only (iii) is correct

(ii) and (iii) are correct

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:

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

A is true but R is false.

A is false but R is true.

TRUE ANSWER : ?
YOUR ANSWER : ?

When a ship floats at its designed water line, the vertical distance from water line to the bottom of the ship is known as

Free-board

Beam

Depth

Draft

TRUE ANSWER : ?
YOUR ANSWER : ?

If ‘Hs’ is the significant wave height, then the average wave height and highest wave height respectively are given by

1.27 Hs and 1.87 Hs

0.6 Hs and 1.87 Hs

1.27 Hs and 1.67 Hs

0.6 Hs and 1.67 Hs

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

Swell

Surf

Fetch

Clapotis

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 but R is not a correct explanation of

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

A is false but R is true.

A is true but R is false.

TRUE ANSWER : ?
YOUR ANSWER : ?

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