11. The necessity for dropping a stone from the centre of compass on to the top of a peg is for . . . . . . . .
12. The temporary adjustments of theodolite are . . . . . . . .
13. The characteristic feature of a fault is such that the ends of the broken strata overlap and the seam is duplicated along the line of the fault, identify its type,
14. The begining and end of chain lines are known as . . . . . . . .
15. The planimeter rests on . . . . . . . . points.
16. The whole circle bearings of two lines are 60° and 150°. The interior angle included between these two lines is . . . . . . . .
17. The horizontal distance is obtained by simply multiplying the staff intercept by
18. In shaft plumbing the plumb bobs are immersed in a bucket of water to prevent.
19. The principle of Tacheometry is based on the property to . . . . . . . . triangles.
20. Zero circle condition is obtained while . . . . . . . .
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