Civil Engineering :: Surveying

Hydrographic surveys deal with the mapping of

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

An ideal vertical curve to join two gradients, is

Pick up the correct statement from the following

The intercept of a staff

The radius of curvature of the arc of the bubble tube is generally kept

If S is the length of a subchord and R is the radius of simple curve, the angle of deflection between its tangent and subchord, in minutes, is equal to

The real image of an object formed by the objective, must lie

In chain surveying tie lines are primarily provided

Pick up the correct statement from the following :