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.

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.

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.