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.Management Sciences
Category: Dock and Harbor Engineering
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.
A. (i) and (ii) are correct
B. (i) and (iii) are correct
C. (ii) and (iv) are correct
D. (iii) and (iv) are correct
As per Berlin’s formula, the length of wave in metres is given by_______________?
A. 1.3412
B. 1.5612
C. 1.7412
D. 1.9412
where ‘t’ is the period in seconds for two successive waves to pass the same section
A ship is berthed in a chamber and lifted by principles of buoyancy Such a chamber is called_________________?
A. Dry dock
B. Wet dock
C. Floating dock
D. Refuge dock
As compared to wall type breakwater, mound type breakwater_________________?
A. requires skilled labour
B. requires low maintenance cost
C. requires less material
D. results in less damage due to gradual failure
The significant wave height is defined is the average height of the_________________?
A. one – third highest waves
B. one – fourth highest waves
C. one – fifth highest waves
D. one – tenth highest waves
For designing the dock, the proportion of ship load assumed to be borne by keel blocks is________________?
A. 5/8
B. 3/8
C. 3/16
D. 5/16
Which of the following are repair docks ?
A. marine railways, dry docks, floating docks, wet docks
B. dry docks, wet docks, floating docks, lift docks
C. wet docks, floating docks, lift docks, marine railways
D. wet docks, lift docks, marine railways, dry docks
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.
A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not correct explanation of A.
C. A is true but R is false.
D. A is false but R is true.
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. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true
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