Dock and Harbor Engineering Mcqs
This set of Civil Engineering Multiple Choice Questions & Answers (MCQs) focuses on “ Dock and Harbor Engineering ”. These Mcqs are chosen from a collection of most authoritative and best reference books on Civil Engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Dock and Harbor Engineering comprehensively.
17. Which of the following conditions of loading imposes the greatest load on the foundation in case of dry docks?
When the dock is empty
When the dock is empty with the ship of maximum tonnage
When the dock is full of water
When the dock is dry and is under construction
Answer & Solution
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18. Which of the following are repair docks ?
Marine railways, dry docks, floating docks, wet docks
Dry docks, wet docks, floating docks, lift docks
Wet docks, floating docks, lift docks, marine railways
Wet docks, lift docks, marine railways, dry docks
Answer & Solution
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19. Which of the following type of sea walls results in greatest protection of shore structures?
Vertical sea wall
Sea wall with batter
Stepped sea wall
Sea wall with concave face
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20. When a wave strikes a vertical breakwater in deep water, it is reflected back and on meeting another advancing wave of similar amplitude merges and rises vertically in a wall of water. This phenomenon is called_________________?
Surf
Clapotis
Fetch
Swell
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21. The significant wave height is defined is the average height of the_________________?
One – third highest waves
One – fourth highest waves
One – fifth highest waves
One – tenth highest waves
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22. By increasing the rise of lockgates_______________? (i) the length of the lock gate will increase
(ii) transverse stress due to water pressure on the gate will increase
(iii) compressive force on the gate will increase
select the correct statements?
(i) the length of the lock gate will increase
(ii) transverse stress due to water pressure on the gate will increase
(iii) compressive force on the gate will increase
select the correct statements?
(i) and (ii) are correct
(i) and (iii) are correct
Only (ii) is correct
Only (iii) is correct
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23. 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 datum
1.2 H to 1.25 H above the low water level
1.2 H to 1.25 H above the high water level
1.2 H to 1.25 H above the mean sea level
Answer & Solution
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24. The difference in height between highest high water and lowest low water is called_______________?
Mean range
Maximum range
Maximum rise
Mean rise
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25. Select the incorrect statement ?
The progress of work in low level method of mound construction is very slow.
Barge method of mound construction is economical.
In low level method of mound construction, the area of working is limited.
In staging method of mound cons-truction, the work is not interrupted even during stormy weather
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26. In a two lane channel, bottom width of channel is given by_______________?
Manoeuvring lane + 2 x Bank clearance lane
2 x Manoeuvring lane + 2 x Bank clearance lane
2 x Manoeuvring lane + 2 x Bank clearance lane + ship clearance lane
Manoeuvring lane + 2 x Bank clearance lane + ship clearance lane
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27. As per Berlin’s formula, the length of wave in metres is given by_______________?
1.3412
1.5612
1.7412
1.9412
28. 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
The length of design vessel + 20% clearance between adjacent vessels
Twice the length of design vessel
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29. 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.
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.
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30. 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
select the correct the correct statements.
(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
select the correct the correct statements.
A. (i) and (ii) are correct
(i) and (iii) are correct
(ii) and (iv) are correct
(iii) and (iv) are correct
Answer & Solution
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