Prismatic Compass and Surveyor Compass

Question

Write a brief notes on Prismatic compass and Surveyor’s compass.

Answer 1

a) Prismatic compass :  Prismatic compass is used for the purpose of preliminary survey of roadways as well as railways. The outcomes of the prismatic compass may be impractical in case of the local attraction.

b) Surveyor’s compass :  Nowadays surveyors compass is out-of-date for land surveying. In general, it is similar to the prismatic compass except for that it has another plain sight which is having a narrow vertical slit instead of a prism.