A. 30°
B. 45°
C. 60°
D. 90°
✅ The correct answer is option B.
Surveying MCQs
If the horizontal distance between the staff point and the point of observation is d, then the error due to curvature of earth is proportional to_______________?
A. d
B. 1/d
C. d2
D. 1/d2
✅ The correct answer is option C.
The length of a chain is measured from_______________?
A. centre of one handle to centre of other handle
B. outside of one handle to outside of other handle
C. outside of one handle to inside of other handle
D. inside of one handle to inside of other handle
✅ The correct answer is option B.
Which of the following methods of theodolite traversing is suitable for locating the details which are far away from transit stations ?
A. measuring angle and distance from one transit station
B. measuring angles to the point from at least two stations
C. measuring angle at one station and distance from other
D. measuring distance from two points on traverse line
✅ The correct answer is option B.
The instrument used for accurate centering in plane table survey is________________?
A. spirit level
B. alidade
C. plumbing fork
D. trough compass
✅ The correct answer is option C.
In an internal focussing type of telescope, the lens provided is_______________?
A. concave
B. convex
C. plano-convex
D. plano-concave
✅ The correct answer is option A.
Select the incorrect statement?
A. The true meridians at different places are parallel to each other
B. The true meridian at any place is not variable
C. The true meridians converge to a point in northern and southern hemispheres
D. The maps prepared by national survey departments of any country are based on true meridians
✅ The correct answer is option A.
Sensitiveness of a level tube is designated by______________?
A. radius of level tube
B. length of level tube
C. length of bubble of level tube
D. none of the above
✅ The correct answer is option A.
Select the correct statement?
A. Contour interval on any map is kept constant
B. Direct method of contouring is cheap¬er than indirect method
C. Inter-visibility of points on a contour map cannot be ascertained
D. Slope of a hill cannot be determined with the help of contours
✅ The correct answer is option A.
Which of the following methods of offsets involves less measurement on the ground?
A. method of perpendicular offsets
B. method of oblique offsets
C. method of ties
D. all involve equal measurement on the ground
✅ The correct answer is option A.