Civil Engineering - Surveying

16.
Correction per chain length of 100 links along a slope of α radians, is
100 α2
100 α
100 α3
100 α-1.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

17.
While working on a plane table, the correct rule is :
Draw continuous lines from all instrument stations
Draw short rays sufficient to contain the points sought
Intersection should be obtained by actually drawing second rays
Take maximum number of sights as possible from each station to distant objects.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

18.
Pick up the correct statement from the following
the contour lines having the same elevation cannot unite and continue as one line
a contour can not end abruptly, but must ultimately close itself not necessarily within the limits of map.
the direction of steepest slope at a point on a contour is at right angles to the contour
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

19.
In case of a double line river, contours are
stopped at the banks of the river
stopped at the edge of the river
drawn across the water
drawn by parabolic curves having their vertex at the centre of the water.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

20.
In case of a direct vernier scale
graduations increase in opposite direction in which graduations of the main scale increase
smallest division is longer than smallest division of the main scale
graduations increase in the same direction in which graduations of the main scale increase
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.