Civil Engineering Notes

PRISMATIC COMPASS- Graduated ring attached to magnetic needle. Graduated are marked on the ring in clock wise direction with 0 degree or 360 degree at south end. Sighting and reading bearing are done simultaneously. This can be used with or without stand. SURVEYOR’S COMPASS— Graduated ring being attached with the compass box. Graduation are marked […]

When compass is used in the traversing for making angular measurement is known as compass surveying or compass traversing. In this surveying it used to determine the direction of survey line by measuring the angle with these line makes with the magnetic meridian. The compass survey are suitable when- The area can not be divided