A. Dry dock
B. Wet dock
C. Floating dock
D. Refuge dock
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
A. 5/8
B. 3/8
C. 3/16
D. 5/16
A. 90° with the face of the dock
B. 45° with the face of the dock
C. 30° with the face of the dock
D. 10° with the face of the dock
A. two points
B. four points
C. six points
D. eight points
A. The progress of work in low level method of mound construction is very slow.
B. Barge method of mound construction is economical.
C. In low level method of mound construction, the area of working is limited.
D. In staging method of mound cons-truction, the work is not interrupted even during stormy weather
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