Civil Engineering - Surveying
Exercise :: Surveying - Section 1
| 46. |
The sensitiveness of a level tube decreases if |
| A. |
radius of curvature of its inner surface is increased | | B. |
diameter of the tube is increased | | C. |
length of the vapour bubble is increased | | D. |
both viscosity and surface tension are increased. |
Answer: Option D
Explanation:
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| 47. |
For true difference in elevations between two points A and B, the level must be set up |
| A. |
at any point between A and B | | B. |
at the exact mid point of A and B | | C. |
near the point A | | D. |
near the point B. |
Answer: Option B
Explanation:
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| 48. |
ABCD is a regular parallelogram plot of land whose angle BAD is 60°. If the bearing of the line AB is 30°, the bearing of CD, is |
Answer: Option C
Explanation:
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| 49. |
Keeping the instrument height as 1.5 m, length of staff 4 m, the slope of the ground as 1 in 10, the sight on the down-slope, must be less than |
Answer: Option B
Explanation:
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| 50. |
Pick up the correct statement from the following : |
| A. |
Box sextant is used for the measurement of horizontal angles | | B. |
Cross staff is used for setting out right angles | | C. |
Gradiometer is used for setting out any required gradient | | D. |
Line ranger is used for locating intermediate stations on a survey line | | E. |
All the above. |
Answer: Option E
Explanation:
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