TYPES OF COMPASS
The types of compass that are commonly used are:
(a) prismatic compass; and
(b) surveyor compass.
The essential parts of both types are following:
(i) a graduated circle,
(ii) a magnetic needle,
(iii) a box to house them and.
(iv) a line of sight,
There are some differences in the fundamental parts of the 2 type of compass. The construction of the 2 types of compass is described.