Civil Engineering :: Surveying
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Hydrographic surveys deal with the mapping of
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If h is the difference in level between end points separated by l, then the slope correction is \(\frac { h^2 } { 2I }\)+\( \frac { h^4 } { 8 } \)The second term may be neglected if the value of h in a 20 m distance is less than
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An ideal vertical curve to join two gradients, is
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Pick up the correct statement from the following
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The intercept of a staff
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The radius of curvature of the arc of the bubble tube is generally kept
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If S is the length of a subchord and R is the radius of simple curve, the angle of deflection between its tangent and sub-chord, in minutes, is equal to
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The real image of an object formed by the objective, must lie
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In chain surveying tie lines are primarily provided
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Pick up the correct statement from the following :
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