Civil Engineering - Surveying

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

Answer: Option C

Explanation:

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47. 

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

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

Answer: Option C

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.

Answer: Option A

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.

Answer: Option C

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.

Answer: Option D

Explanation:

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