Which of the following methods of contouring is most suitable for a hilly terrain?

Direct method is of two types:
A. Horizontal method: is used analysing already represented points.
B. Vertical method: is used representing a point on contour
While indirect method is three types:
A. Square method: Is used for small and little undulating areas.
B. Cross section method: is used for railway track.
C. Techometric method: is used for hilly terrain.

D

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Tachometric method

Most suitable method of contouring of hilly areas is Indirect method!!

Does Tachometric method
Mean Indirect Contour??