# Civil Engineering - Surveying

### Exercise :: Surveying - Section 2

46.

Metric chains are generally available in

 A. 10 m and 20 m length B. 15 m and 20 m length C. 20 m and 30 m length D. 25 m and 100 m length

Explanation:

No answer description available for this question. Let us discuss.

47.

On a diagonal scale, it is possible to read up to

 A. one dimension B. two dimensions C. three dimensions D. four dimensions.

Explanation:

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48.

Plotting of inaccessible points on a plane table, is done by

 A. intersection B. traversing C. radiation D. none of these.

Explanation:

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49.

A dumpy level is set up with its eye-piece vertically over a peg A. The height from the top of peg A to the centre of the eye-piece is 1.540 m and the reading on peg B is 0.705 m. The level is then setup over B. The height of the eye-piece above peg B is 1.490 m and a reading on A is 2.195 m. The difference in level between A and B is

 A. 2.900 m B. 3.030 m C. 0.770 m D. 0.785 m E. 1.770 m.

Explanation:

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50.

Probable systematic error in precise levelling as recommended by International Geodetic Association should not exceed
(where k is in kilometers.)

 A. ± 0.1 k mm B. ± 0.2 k mm C. ± 0.1 k D. 0.2 k mm.