With neat sketch, write the procedure of measurement of fore bearing with compass.

1 Answer

Answer :

image

For measuring fore bearing of line AB,

i) Place the compass over station A, center and level it. 

ii) Looking through eye slit towards object vane, bisect the ranging rod at station B

iii) Focus the prism; note the reading which coincides with horse hair at observer end.

The observed reading is the fore bearing of line AB

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