Surveying – Page 3

When the length of a chain along a slope of? is (l), the correction for slope required is?

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to provide a satisfactory means of obtaining a gradual increase of super-elevation from zero on the tangent point to the specified amount on the main circular curve
to accomplish gradually the transition from the tangent to the circular curve and from the circular curve to the tangent
to obtain a gradual increase of curvature from zero at the tangent point to the specified quantity at the junction of the transition curve with the circular curve
all of the above

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when looking in the direction of the reference points, the point sought is on the same side of each of the three rays
the distance to the point sought from each of the three rays is proportional to the distance of the three known points from the instrument station
when the instrument station is outside the great circle, the point sought is always on the same side of the ray drawn to the most distant point as the intersection of the other two rays
all of the above

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