After setting up the instrument first thing done by the surveyor is _________ Options: A . &nbspreleasing all clamps B . &nbsplevelling instrument C . &nbspturning plates D . &nbspclamping the plates

After setting up the instrument first thing done by the surveyor is ________

Question

After setting up the instrument first thing done by the surveyor is _________

Options:

A . releasing all clamps

B . levelling instrument

C . turning plates

D . clamping the plates

Answer: Option B
Answer: (b).levelling instrument

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Question 1. After levelling of an instrument is done what is the next up?....

Question 2. For measuring an angle to the highest degree of precision, several sets of repetitions are usually taken.....

Question 3. If one of the vernier is at 0° then another vernier reading shows / also shows ______....

Question 4. To measure a horizontal angle, after releasing all clamps, we turn the upper and lower plates in the same direction.....

Question 5. To measure a horizontal angle by direct method is also called a repetition method.....

Question 6. Error due to structural defects in the instrument comes under ________ error.....

Question 7. Error due to imperfections due to wear comes under ________ error.....

Question 8. Inaccurate levelling comes under ______ error.....

Question 9. Error due to the line of collimation not being perpendicular to the horizontal axis comes under ________ error.....

Question 10. Error due to in accurate centering comes under ________ error.....

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