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Civil Engineering - Surveying

Exercise : Surveying - Section 5
11.
The operation of resection involves the following steps
  1. rough orientation of the plane table
  2. the three lines form a triangle of error
  3. drawing lines back through the three control points
  4. select a point in the triangle of error such that each ray is equally rotated either clockwise or anti clockwise
  5. the points obtained by three rays is the correct location.

The correct sequence is
1, 3, 2, 4, 5
1, 2, 3, 4, 5
1, 4, 3, 2, 5
1, 4, 2, 3, 5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
The ratio of the length of long chord and the tangent length of a circular curve of radius R deflecting through angle Δ, is
sin
cos
tan
2 sin
2 cos .
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
To avoid large centering error with very short legs, observations are generally made
to chain pins
by using optical system for centering the theodolite
to a target fixed on theodolite tripod on which theodolite may be fitted easily
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
During secular variation of magnetic meridian at different places
range of oscillations is constant
period of oscillation is constant
range and period of oscillation both vary
period of oscillation only varies.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Designation of a curve is made by :
angle subtended by a chord of any length
angle subtended by an arc of specified length
radius of the curve
curvature of the curve.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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