Civil Engineering - Surveying - Discussion
Discussion Forum : Surveying - Section 5 (Q.No. 30)
30.
The line of sight is kept as high above ground surface as possible to minimise the error in the observed angles due to
Discussion:
3 comments Page 1 of 1.
Santosh Kumar said:
2 years ago
Keeping the line of sight high above the ground surface is essential to minimize the error in the observed angles due to shimmering, horizontal refraction, and vertical refraction. So, all the given option is the correct answer.
R.k said:
6 years ago
Shimmering means?
RAHUL said:
8 years ago
Shimmering shine with a soft, slightly wavering light.
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