DOCKS AND HARBOR ENGINEERING QUIZ

In multiple point mooring system, vessel is secured to minimum of

Four points

Eight points

Two points

Six points

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a fixed type mooring accessory ?

cables

anchors

buoys

bollard

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.

A is true but R is false.

A is false but R is true.

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

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 A.

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

A is false but R is true.

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 and R is the correct explanation of A.

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.

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Refuge dock

Wet dock

Floating dock

Dry dock

TRUE ANSWER : ?
YOUR ANSWER : ?

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

one – fifth highest waves

one – third highest waves

one – tenth highest waves

one – fourth highest waves

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 (ii) are correct

(i) and (iii) are correct

Only (ii) is correct

Only (iii) is correct

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:

A is true but R is false.

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

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

A is false but R is true.

TRUE ANSWER : ?
YOUR ANSWER : ?

Minimum width of ship clearance shall be (where “B” is beam of the design vessel)

1.5 B

B or 30 m

50 m

1.5 B or 50 m

TRUE ANSWER : ?
YOUR ANSWER : ?