Surveying Questions

• If L is the specified length of a tape, L1 its actual length and S the measured distance, then, the true distance is given by the formula,
• You have to observe an included angle with better accuracy than what is achievable by a vernier, you will prefer the method of
• Accidental or compensating errors of length L are proportional to
• If a linear traverse follows a sharp curve round a large lake where it is difficult to have long legs, the accuracy of the traverse may be improved by
• The operation of resection involves the following steps rough orientation of the plane table the three lines form a triangle of error drawing lines back through the three control points select a point in the triangle of error such that each ray is equally rotated either clockwise or anti clockwise the points obtained by three rays is the correct location. The correct sequence is
• Pick up the correct statement from the following
• Check lines (or proof lines) in Chain Surveying, are essentially required
• The distance between terminal points computed from a subsidiary traverse run between them, is generally known, as
• A sewer is laid from a manhole A to a manhole B, 250 m away along a gradient of 1 in 125. If the reduced level of the invert at A is 205.75 m and the height of the boning rod is 3 m, the reduced level of the sight rail at B, is
• For locating a distant object visible from two transit stations, the method usually preferred to, is
• Chain surveying is well adopted for
• The line of collimation method of reduction of levels, does not provide a check on
• Short offsets are measured with
• The approximate formula for radial or perpendicular offsets from the tangent, is
• Correction per chain length of 100 links along a slope having a rise of 1 unit in n horizontal units, is
• Which one of the following statements is correct?
• Prolongation of chain line across an obstruction in chain surveying, is done by
• Bergchrund is a topograhical feature in
• To avoid large centering error with very short legs, observations are generally made
• The line of sight is kept as high above ground surface as possible to minimise the error in the observed angles due to