Which of the following errors can be eliminated by reciprocal measurements in differential levelling? I. Error due to earth curvature II. Error due to atmospheric correction

Questions › Category: Civil Engineering › Which of the following errors can be eliminated by reciprocal measurements in differential levelling? I. Error due to earth curvature II. Error due to atmospheric correction
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Which of the following errors can be eliminated by reciprocal measurements in differential levelling?

I. Error due to earth curvature

II. Error due to atmospheric correction

a) Both I and II

b) Only I

c) Only II

d) Neither I nor II

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