Surveying Questions Set 35:
Which reference direction is used in a geodetic survey?
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Calculate the area of the triangular field with sides AB = 5 m, BC = 8 m, and AC = 10 m.
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In a total station, the prism constant value for a retroreflector is
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The survey line provided to verify the accuracy of the framework is called:
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The direction of a line relative to a given meridian is known as?
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The following readings have been taken from a page of an old level book. The R.L of first station, when R.L of last station is 123.85 m, is ___________ decimeter.
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For better accuracy in measuring and plotting the sides of a triangle by triangulation, the angles of the triangle
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Correction of length due to reduction to mean sea level is _________.
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The cuvature and refraction effects are taken into account in the following case:
Level is set-up over A and the staff is held at B.
R.L. of A = 150.000 m
Height of instrument at A = 1.000 m
Reading of staff at B = 1.800 m
Distance AB = 500 m
The RL of B (in m) is
Solution:
An instrument was set up at point P, and the angle of depression to a vane 2m above the foot of the staff held at point Q was 5° 36'. The horizontal distance between P and Q was known to be 3000 m. Given the staff reading on a benchmark of elevation 436.000 m was 2.865 m, the reduced level (RL) of the staff station Q is:
Solution:
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