DOCKS AND HARBOR ENGINEERING QUIZ

In basins subjected to strong winds and tide, the length of the berthing area should not be less than

The length of design vessel

The length of design vessel + 10% clearance between adjacent vessels

Twice the length of design vessel

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

TRUE ANSWER : ?
YOUR ANSWER : ?

A ship is berthed in a chamber and lifted by principles of buoyancy Such a chamber is called.

Refuge dock

Dry dock

Floating dock

Wet dock

TRUE ANSWER : ?
YOUR ANSWER : ?

By increasing the rise of lock-gates,<br/>(i) The length of the lock gate will increase<br/>(ii) Transverse stress due to water pressure on the gate will increase<br/>(iii) Compressive force on the gate will increase

(i) and (iii) are correct

(i) and (ii) are correct

Only (iii) is correct

Only (ii) is correct

TRUE ANSWER : ?
YOUR ANSWER : ?

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

0.6 Hs and 1.87 Hs

0.6 Hs and 1.67 Hs

1.27 Hs and 1.87 Hs

1.27 Hs and 1.67 Hs

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 true but R is false.

A is false but R is true.

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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

sea wall with concave face

stepped sea wall

sea wall with batter

vertical sea wall

TRUE ANSWER : ?
YOUR ANSWER : ?

As compared to wall type breakwater, mound type breakwater

Requires skilled labor

Results in less damage due to gradual failure

Requires less material

Requires low maintenance cost

TRUE ANSWER : ?
YOUR ANSWER : ?

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

one – tenth highest waves

one – third highest waves

one – fourth highest waves

one – fifth highest waves

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 : ?

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 (ii) are correct

(i) and (iii) are correct

TRUE ANSWER : ?
YOUR ANSWER : ?