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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