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Civil Engineering - Surveying

Exercise : Surveying - Section 1
11.
One of the Lehmann's rules of plane tabling, is
location of the instrument station is always distant from each of the three rays from the known points in proportion to their distances
when looking in the direction of each of the given points, the instrument station will be on the right side of one and left side of the other ray
when the instrument station is outside the circumscribing circle its location is always on the opposite side of the ray to the most distant point as the inter-section of the other two rays
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
If f1 and f2 are the distances from the optical centre of a convex lens of focal length f to conjugate two points P1 and P2 respectively, the following relationship holds good
f = f1 + f2
f = (f1 + f2)
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
The accuracy of measurement in chain surveying, does not depend upon
length of the offset
scale of the plotting
importance of the features
general layout of the chain lines.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
If arithmetic sum of latitudes of a closed traverse is ∑Lat and closing error in latitude is dx, the correction for a side whose latitude is l, as given by Transit Rule, is
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Closed contours of decreasing values towards their centre, represent
a hill
a depression
a saddle or pass
a river bed.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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