Question

Differentiate between prismatic compass and surveyors compass.

Answer 1

Differences between prismatic and surveyors compass. Graduation circle is fixed to broad type needle. HenceThere is a prism at viewing end.it will not rotate with the line of sight. The magnetic needle do not act as an index.

Answer 2

Answer:

A circumferentor, or surveyor's compass, is an instrument used in surveying to measure horizontal angles. ... A circumferentor consists of a circular brass box containing a magnetic needle, which moves freely over a brass circle, or compass divided into 360 degrees.