DOCKS AND HARBOR ENGINEERING QUIZ

Which of the following are repair docks ?

wet docks, lift docks, marine railways, dry docks

wet docks, floating docks, lift docks, marine railways

marine railways, dry docks, floating docks, wet docks

dry docks, wet docks, floating docks, lift docks

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 (iii) are correct

(i) and (ii) are correct

Only (iii) is correct

(ii) and (iii) are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

Consider the following statements.(i) Fender is the cushion provided on the face of the jetty for ships to come in contact,(ii) Slip is the space of water area between two adjacent piers where ships are berthed,(iii) Pier head is a structure constructed near the tip of a break water near the harbour entrance. Of the statements

(ii) and (iii) are correct

(i) and (iii) are correct

(i) and (ii) are correct

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

TRUE ANSWER : ?
YOUR ANSWER : ?

As compared to wall type breakwater, mound type breakwater

Requires low maintenance cost

Requires less material

Requires skilled labor

Results in less damage due to gradual failure

TRUE ANSWER : ?
YOUR ANSWER : ?

As per Berlin's formula, the length of wave in meters is given by(Where ’t’ is the period in seconds for two successive waves to pass the same section.)

1.5612

1.7412

1.9412

1.3412

TRUE ANSWER : ?
YOUR ANSWER : ?

The most popular method of construction of wall breakwaters is

Low level method

Barge method

Staging method

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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

43898

43959

43906

43967

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

(i) and (iii) are correct

(ii) and (iv) are correct

(i) and (ii) are correct

(iii) and (iv) are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

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

1.5 B or 50 m

50 m

1.5 B

B or 30 m

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:

A is true but R is false.

A is false but R is true.

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

TRUE ANSWER : ?
YOUR ANSWER : ?

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