Assertion A: Marine structures are made specially bulky and strong.
Reason R: Sea insects result in undermining of the hardest and the soundest building material
Select your answer based on the coding system given below:

Related MCQs

• Assertion A: Intervention of undulations in the sea bed reduces the depth of wave at the section. Reason R: No wave can have a height greater than the depth of water through which it passes Select your answer based on the coding system given below:
• Assertion A: Depth and width required at the entrance to a harbour are more than those required in the channel. Reason R: The entrance to a harbour is usually more exposed to waves as compared to the harbour itself. Select your answer based on the coding system given below:
• 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.
• Assertion A: Basin walls have to be of much greater 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:
• Which of the following type of sea walls results in greatest protection of shore structures?
• In basins subjected to strong winds and tide, the length of the berthing area should not be less than
• Which of the following structures are constructed parallel to shore line to develop a demarcating line between land area and water area?
• Which of the following structures protects the shore by trapping of littoral drift?
• Due to the impact of water wave on a sea shore structure
• Select the incorrect statement.