Civil Engineering :: Surveying
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In levelling operation,
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The apparent error on reversal is
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Magnetic declination at any place
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Systematic errors are those errors
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If L is in kilometres, the curvature correction is
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With usual notations, the expression \(\frac { v^2} {gR} \) represents
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An angle of deflection right, may be directly obtained by setting the instrument to read
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The method of finding out the difference in elevation between two points for eliminating the effect of curvature and refraction, is
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Transition curves are introduced at either end of a circular curve, to obtain
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The horizontal angle between true meridian and magnetic meridian, is known
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A.
gradually decrease of curvature from zero at the tangent point to the specified quantity at the junction of the transition curve with main curve |
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B.
gradual increase of super-elevation from zero at the tangent point to the specified amount at the junction of the transition curve with main curve |
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C.
gradual change of gradient from zero at the tangent point to the specified amount at the junction of the transition curve with main curve |
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D.
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