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Surveying: Nuclear Quiz 3

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Question 1

Calculate the corrected staff reading at point A, if the staff reading is taken from an instrument which is set at a distance of 1.5 km from the point A 3.46

Question 2

The following readings were taken on a continuously downwards sloping ground. Which of the readings is wrong?

Question 3

In the leveling between two points A and B on the opposite sides of a pond, the level is first set up near the point A and staff reading on A and B are2.5 m and 2.0 m respectively. Then the level is moved and set near the point B, staff reading on points A and B are 1.2 m and 1.7 m respectively. Calculate the difference of heights between the two points A and B (in metre).

Question 4

B and C are two points on the opposite banks of a river along a chain line ABC which crosses the river at right angles to the bank. From a point P which is 150 m from B along the bank, the bearing of A is 215 ° 30' and the bearing of C is 305 ° 30'. If the length AB is 200 m, the width (in m) of the river is

Question 5

If the contour interval and contour gradient of a contour map plotted over an undulated terrain are 10m and 1 in 100, then the horizontal equivalent is :

Question 6

The tangential method of tachometry is

Question 7

If L is the length of the transition curve and R is the radius of the circular curve, then the shift of
the curve is directly proportional to

Question 8

A circular curve of radius R connects two straights with a deflection angle of 60 °. The tangent length is

Question 9

The type of surveying in which the curvature of the earth is taken into account is called

Question 10

A line PQ measures 12 cm on a photograph taken with a camera of focal length 22.5 cm. The same line measures 4 cm on a map drawn to scale of 1:35000. If average attitude is 300 m then what is the flying height of the aircraft?
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