Horizontal line departs from a level surface because of _____________ Options: A . &nbspRefraction B . &nbspRadius of earth C . &nbspCurvature of earth D . &nbspParallelism

Horizontal line departs from a level surface because of ____________

Question

Horizontal line departs from a level surface because of _____________

Options:

A . Refraction

B . Radius of earth

C . Curvature of earth

D . Parallelism

Answer: Option C
Answer: (c).Curvature of earth

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Question 1. Find correction for refraction for a distance of 1200 m?....

Question 2. Find the correction for curvature for a distance 1200 m?....

Question 3. When instrument is at P the staff readings on P is 1.824 and on Q is 2.748. When instrument at Q the staff readings on ....P is 126.386. Find combined correction for curvature and refraction?

Question 4. When an instrument is at P the staff readings on P is 1.824 and on Q is 2.748. When instrument at Q the staff readings o....of P is 126.386. Find the error due to collimation?

Question 5. When instrument is at P the staff readings on P is 2.748 and on Q is 1.824 when instrument at Q the staff readings on P ....R.L. of P is 126.386. Find error due to collimation?

Question 6. When instrument is at P the staff readings on P is 2.748 and on Q is 1.824 when instrument at Q the staff readings on P ....is 126.386. Find combined effect correction for curvature and refraction?

Question 7. When an instrument is at P the staff readings on P is 2.748 and on Q is 1.824 when instrument at Q the staff readings o....R.L. of P is 126.386. Find true R.L of Q?

Question 8. Atmospheric refraction is _________....

Question 9. Which of the following is an instrumental error?....

Question 10. Which of the following is not a natural error?....

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