1164. 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.

1170. 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.