HYDROGRAPHIC SURVEY - Quiz

1) Which method is used to determine the periodical sounding at the same point?

Two angles from the shore Intersecting ranges Two angles from the boat Cross rope

2) What is the reduced level of the sub - marine surface in terms of the adopted datum?

Reduced sounding Elevation Datum surface Bench mark

3) What is L.W.O.S.T ?

Low water ocean spring tides Low water optimum spring tides Low water opposing spring tides Low water ordinary spring tides

4) What is the name of three armed protractor used for the plotting of sounding ?

Minidrafter Junior drafter Station pointer Plotting scale

5) What is M.L.W.S ?

Mean Low Water Springs Maximum Level of Water Spring Mean Level of Water Springs Mean Level of Water surface