Direct method of contouring is
A. A quick-method
B. Adopted for large surveys only
C. Most accurate method
D. Suitable for hilly terrains
Please scroll down to see the correct answer and solution guide.
Right Answer is: C
SOLUTION
In the direct method, the contour to be plotted is actually traced on the ground. Points which happen to fall on the desired contour are only surveyed, plotted and finally joined to obtain the particular contour.
This method is slow and tedious and thus used for large scale maps, small contour interval and at a high degree of precision and hence more accurate than the other methods of contouring.
Direct Method v/s Indirect Method of contouring:
|
S. No. |
Direct Method |
Indirect Method |
|
1 |
Very tedious |
Not tedious |
|
2 |
Accurate |
Less Accurate |
|
3 |
Slow |
Fast |
|
4 |
Requires more resources |
Requires fewer resources |
|
5 |
Points are physically located on the ground |
Points are interpolated in the office |
|
6 |
Suitable for contouring of small area. |
Suitable for contouring of large areas |