DOCKS AND HARBOR ENGINEERING QUIZ

Assertion A : Marine structures are made specially bulky and strong.Reason R : Sea insects result in undermining of the hardest and the soundest building material.Select your answer based on the coding system given below:

A is false but R is true.

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

A is true but R is false.

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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

(i) and (ii) are correct

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

(i) and (iii) are correct

(ii) and (iii) are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

Assertion A : Marine structures are made specially bulky and strong.Reason R : Sea insects result in undermining of the hardest and the soundest building material. Select your answer based on the coding system given below:

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

A is true but R is false.

A is false but R is true.

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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

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

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

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

Manoeuvring lane + (2 × Bank clearance lane)

TRUE ANSWER : ?
YOUR ANSWER : ?

If the maximum spring rise is 2 m and height of the waves expected is 4 m , then the breakwater height above the datum will be

7 m

2.5 m

4 m

5 m

TRUE ANSWER : ?
YOUR ANSWER : ?

The most popular method of construction of wall breakwaters is

Low level method

Barge method

None of these

Staging method

TRUE ANSWER : ?
YOUR ANSWER : ?

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

(ii) and (iv) are correct

(i) and (ii) are correct

(i) and (iii) are correct

(iii) and (iv) are correct

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:

A is true but R is false.

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

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

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

Depth

Beam

Free-board

Draft

TRUE ANSWER : ?
YOUR ANSWER : ?

At a given port, the fetch is 400 nautical miles, the maximum height of storm wave will be

8.169 m

9.144 m

2.073 m

6.8 m

TRUE ANSWER : ?
YOUR ANSWER : ?