DOCKS AND HARBOR ENGINEERING QUIZ

As per Stevenson’s empirical formula, the approximate value of the height of the wave in metres is given by (where F is the fetch in km.)

0.5 VF

3.4 VF

1.5 VF

0.34 VF

TRUE ANSWER : ?
YOUR ANSWER : ?

The difference in height between highest high water and lowest low water is called

Mean rise

Maximum rise

Maximum range

Mean range

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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

(i) and (iii) are correct

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

(ii) and (iii) are correct

(i) and (ii) are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

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

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

(ii) and (iii) are correct

(i) and (ii) are correct

(i) and (iii) are correct

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following conditions of loading imposes the greatest load on the foundation in case of dry docks?

When the dock is dry and is under construction

When the dock is empty with the ship of maximum tonnage

When the dock is empty

When the dock is full of water

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is a fixed type mooring accessory ?

buoys

anchors

cables

bollard

TRUE ANSWER : ?
YOUR ANSWER : ?

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

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

The length of design vessel

Twice the length of design vessel

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

TRUE ANSWER : ?
YOUR ANSWER : ?

If H is the height of the wave expected, then the height of the breakwater is generally taken as

1.2 H to 1.25 H above the high water level

1.2 H to 1.25 H above the low water level

1.2 H to 1.25 H above the mean sea level

1.2 H to 1.25 H above the datum

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.)

1.7412

1.3412

1.5612

1.9412

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YOUR ANSWER : ?

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

one – third highest waves

one – tenth highest waves

one – fifth highest waves

one – fourth highest waves

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