Civil Engineering - Surveying
Exercise :: Surveying - Section 8
| 16. |
Correction per chain length of 100 links along a slope of α radians, is |
Answer: Option B
Explanation:
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| 17. |
While working on a plane table, the correct rule is : |
| A. |
Draw continuous lines from all instrument stations | | B. |
Draw short rays sufficient to contain the points sought | | C. |
Intersection should be obtained by actually drawing second rays | | D. |
Take maximum number of sights as possible from each station to distant objects. |
Answer: Option B
Explanation:
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| 18. |
Pick up the correct statement from the following |
| A. |
the contour lines having the same elevation cannot unite and continue as one line | | B. |
a contour can not end abruptly, but must ultimately close itself not necessarily within the limits of map. | | C. |
the direction of steepest slope at a point on a contour is at right angles to the contour | | D. |
all the above. |
Answer: Option D
Explanation:
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| 19. |
In case of a double line river, contours are |
| A. |
stopped at the banks of the river | | B. |
stopped at the edge of the river | | C. |
drawn across the water | | D. |
drawn by parabolic curves having their vertex at the centre of the water. |
Answer: Option B
Explanation:
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| 20. |
In case of a direct vernier scale |
| A. |
graduations increase in opposite direction in which graduations of the main scale increase | | B. |
smallest division is longer than smallest division of the main scale | | C. |
graduations increase in the same direction in which graduations of the main scale increase | | D. |
none of these. |
Answer: Option C
Explanation:
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