Which of the following errors can be eliminated by reciprocal measurements in differential leveling?
I. Error due to earth's curvature
II. Error due to atmospheric refraction

II only

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Both I and II

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I only

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Neither I nor II

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Solution

The correct option is B Both I and II
Reciprocal leveling eliminates the errors due to

Error in instrument adjustment.

Combined effect of earth's curvature and the refraction of the atmosphere.

Variation in the average refraction.

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Which of the following errors can be eliminated by reciprocal measurements in differential leveling? I. Error due to earth's curvature II. Error due to atmospheric refraction

The correct option is B Both I and IIReciprocal leveling eliminates the errors due to Error in instrument adjustment. Combined effect of earth's curvature and the refraction of the atmosphere. Variation in the average refraction.

Which of the following errors can be eliminated by reciprocal measurements in differential leveling?
I. Error due to earth's curvature
II. Error due to atmospheric refraction

The correct option is B Both I and II
Reciprocal leveling eliminates the errors due to

Error in instrument adjustment.

Combined effect of earth's curvature and the refraction of the atmosphere.

Variation in the average refraction.