Surveying Questions

• The 'fix' of a plane table station with three known points, is bad if the plane table station lies
• The main principle of surveying is to work
• Keeping the instrument height as 1.5 m, length of staff 4 m, the slope of the ground as 1 in 10, the sight on the down-slope, must be less than
• Pick up the correct statement from the following :
• 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
• The slope correction for a length of 30 m along a gradient of 1 in 20, is
• Two concave lenses of 60 cm focal length are cemented on either side of a convex lens of 15 cm focal length. The focal length of the combination is
• Pick up the method of surveying in which field observations and plotting proceed simultaneously from the following
• The most reliable method of plotting a theodolite traverse, is
• If h is the difference in level between end points separated by l, then the slope correction is . The second term may be neglected if the value of h in a 20 m distance is less than
• The radius of curvature of the arc of the bubble tube is generally kept
• If θ is the slope of the ground and l is the measured distance, the correction is
• For true difference in elevations between two points A and B, the level must be set up
• Pick up the correct statement from the following:
• If L is the perimeter of a closed traverse, ΔD is the closing error in departure, the correction for the departure of a traverse side of length l, according to Bowditch rule, is
• For a closed traverse the omitted measurements may be calculated
• Pick up the correct statement from the following :
• The sensitiveness of a level tube decreases if
• The limiting length of an offset does not depend upon
• If f1 and f2 are the distances from the optical centre of a convex lens of focal length f to conjugate two points P1 and P2 respectively, the following relationship holds good