What do these conventional signs and symbols refer to in a topo sheet?
Tick (✓) the correct answers.

1.

anchorage/lighthouse/buoy

2.

international boundary / forest boundary / tehsil boundary

3.

bamboo/palmyra/conifer

4.

unmetalled road / metalled road / telegraph line

5.

tidal river / dry river / canal

The 4° x 4° sheets are also called …………… sheets.

45 D/10 is an example of (quarter/quadrant) sheet.

Define grid square.