11. As per Stevenson’s empirical formula, the approximate value of the height of the wave in metres is given by__________________?
A. 0.34 VF
B. 0.5 VF
C. 1.5 VF
D. 3.4 VF
✅ The correct answer is option A.
Dock and Harbor Engineering MCQs
12. 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
✅ The correct answer is option B.
13. In multiple point mooring system, vessel is secured to minimum of____________________?
A. two points
B. four points
C. six points
D. eight points
✅ The correct answer is option B.
14. If Hs is the significant wave height, then the average wave height and highest wave height respectively are given by_______________?
A. 0.6 Hs and 1.67 Hs
B. 0.6 Hs and 1.87 Hs
C. 1.27 Hs and 1.87 Hs
D. 1.27 Hs and 1.67 Hs
✅ The correct answer is option B.
15. 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_________________?
A. Surf
B. Clapotis
C. Fetch
D. Swell
✅ The correct answer is option B.
16. The difference in height between highest high water and lowest low water is called_______________?
A. mean range
B. maximum range
C. maximum rise
D. mean rise
✅ The correct answer is option B.
17. Which of the following structures are constructed parallel to shore line to develop a demarcating line between land area and water area ?
A. sea walls, bulk heads and groynes
B. sea walls, bulk heads and revetments
C. sea walls, revetments and groynes
D. bulk heads, revetments and groynes
✅ The correct answer is option B.
18. Which of the following conditions of loading imposes the greatest load on the foundation in case of dry docks?
A. when the dock is empty
B. when the dock is empty with the ship of maximum tonnage
C. when the dock is full of water
D. when the dock is dry and is under construction
✅ The correct answer is option C.
19. In a two lane channel, bottom width of channel is given by_______________?
A. Manoeuvring lane + 2 x Bank clearance lane
B. 2 x Manoeuvring lane + 2 x Bank clearance lane
C. 2 x Manoeuvring lane + 2 x Bank clearance lane + ship clearance lane
D. Manoeuvring lane + 2 x Bank clearance lane + ship clearance lane
✅ The correct answer is option C.
20. 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
✅ The correct answer is option C.