Question

6.
Free board is a level difference between formation level and.
(a) Rail level
(b) HFL
(c) Bed lever
(d) Danger​

Answer 1

Answer:

Can you please explain me correct

Answer 2

Answer:

Option b - HFL (Highest Flood Level) is the correct  

Explanation:

• The freeboard at each point is the difference between the highest flood level after considering the inflow and the level of road formation or the highest level of the embankment in the approach at that point.
• In sailing and boating, the freeboard of a ship is the distance from the waterline to the upper deck, measured at the thinnest point where water can enter the boat or ship.
• For merchant ships, the latter standard measured against the ship's waterline, regardless of deck placement, has a defined and regulated meaning.

Hence, the freeboard is a level difference between the formation level and the high flood level (HFL).

#SPJ3