A. Dry dock
B. Wet dock
C. Floating dock
D. Refuge dock
✅ The correct answer is option C.
Dock and Harbor Engineering MCQs
2. Which of the following is a fixed type mooring accessory ?
A. bollard
B. buoys
C. cables
D. anchors
✅ The correct answer is option A.
3. If H is the height of the wave expected, then the height of the breakwater is generally taken as______________________?
A. 1.2 H to 1.25 H above the datum
B. 1.2 H to 1.25 H above the low water level
C. 1.2 H to 1.25 H above the high water level
D. 1.2 H to 1.25 H above the mean sea level
✅ The correct answer is option C.
4. Minimum width of ship clearance shall be__________________?
A. B or 30 m
B. 1.5 B or 50 m
C. 1.5 B
D. 50 m
✅ The correct answer is option A.
5. At a given port, the fetch is 400 nautical miles, the maximum height of storm wave will be_______________?
A. 2.073 m
B. 8.169 m
C. 9.144 m
D. 6.8 m
✅ The correct answer is option C.
6. 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
✅ The correct answer is option A.
7. In basins subjected to strong winds and tide, the length of the berthing area should not be less than____________________?
A. the length of design vessel
B. the length of design vessel + 10% clearance between adjacent vessels
C. the length of design vessel + 20% clearance between adjacent vessels
D. twice the length of design vessel
✅ The correct answer is option C.
8. Which of the following structures protects the shore by trapping of littoral drift?
A. groynes
B. sea walls
C. revetments
D. moles
✅ The correct answer is option A.
9. If the maximum spring rise is 2 m and height of the waves expected is 4 m , then the breakwater height above the datum will be_________________?
A. 2.5 m
B. 4 m
C. 5 m
D. 7 m
✅ The correct answer is option D.
10. 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
✅ The correct answer is option A.