Atmospheric refraction is _________ Options: A . &nbspinstrumental error B . &nbspnatural error C . &nbsppersonal error D . &nbspit’s not an error

Atmospheric refraction is ________

Question

Atmospheric refraction is _________

Options:

A . instrumental error

B . natural error

C . personal error

D . it’s not an error

Answer: Option B
Answer: (b).natural error

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Question 1. Which of the following is an instrumental error?....

Question 2. Which of the following is not a natural error?....

Question 3. Which of the following is not a principle source of error in levelling?....

Question 4. Errors in sighting is _________....

Question 5. When distances are small which of the following error is negligible?....

Question 6. Wind vibrations are natural errors.....

Question 7. The degree of precision does not depend upon the type of instrument.....

Question 8. Due to refraction, staff reading decreases.....

Question 9. For a given instrument and atmospheric conditions, the precision depends upon the number of setups.....

Question 10. Rise and fall method provides check in calculations for all sights.....

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