Question

In case of which things we have to write relative depth and in case of which things we have to write relative height for the icse topographical map? Please specify. Like for river bank,sand dune,dry tank,tank with embankment,perennial lined well.

Answer 1

only for lined perennial well we have to write relative depth. For all others it is relative height.
exception: If the embankment of a tank is inside we should write relative depth


hope this answer helps you.....ALL THE BEST

Answer 2

Relative height:
When the distance(3r or 4r etc) is given outside of the tanks, tanks with embankment
When the distance (3r or 4r etc) is given outside a river then it is the river bank
ForbSand dunes

Relative depth:
When the distance (3r or 4r etc) is given inside the tanks and tanks with embankment
Depression
Perennial lined well (more likely to be given in blue colour)
Non perennial well