Top 350+ Solved Surveying MCQ Questions Answer
Q. The error due to eccentricity of inner and outer axes can be eliminated by
a. reading both verniers and taking the mean of the two
b. taking both face observations and taking the mean of the two
c. double sighting
d. taking mean of several readings distributed over different portions of the graduated circle
Q. In the double application of principle of reversion, the apparent error is
a. equal to true error
b. half the true error
c. two times the true error
d. four times the true error
Q. Which of the following errors can be eliminated by taking mean of bot faceobservations ?
a. error due to imperfect graduations
b. error due to eccentricity of verniers
c. error due to imperfect adjustment of plate levels
d. error due to line of collimation not being perpendicular to horizontal axis
Q. Which of the following errors cannot be eliminated by taking both face observations ?
a. error due to horizontal axis not being perpendicular to the vertical axis
b. index error i.e. error due to imperfect adjustment of the vertical circle vernier
c. error due to non-parallelism of the axis of telescope level and line of collimation
d. none of the above
Q. If a tripod settles in the interval that elapses between taking a back sight reading and the following foresight reading, then the elevation of turning point will
a. increase
b. decrease
c. not change
d. either ‘a’ or ‘b’
Q. If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference toi) altitude bubble on index frameii) altitude bubble on index frame if it is to be used as a leveliii) altitude bubble on telescopeiv) altitude bubble on telescope if it is to be used as a level The correct answer is
a. only (i)
b. both (i) and (iv)
c. only (iii)
d. both (ii) and (iii)
Q. A’level line’is a
a. horizontal line
b. line parallel to the mean spheriodal surface of earth
c. line passing through the center of cross hairs and the center of eye piece
d. line passing through the objective lens and the eye-piece of a dumpy or tilting level
Q. The following sights are taken on a “turning point”
a. foresight only
b. backsight only
c. foresight and backsight
d. foresight and intermediate sight
Q. The rise and fall method of levelling provides a completed check on
a. backsight
b. intermediate sight
c. foresight
d. all of the above
Q. If the R.L. of a B.M. is 100.00 m, the back- sight is 1.215 m and the foresight is1.870 m, the R.L. of the forward station is
a. 99.345 m
b. 100.345 m
c. 100.655m
d. 101.870m
Q. In an internal focussing type of telescope, the lens provided is
a. concave
b. convex
c. plano-convex
d. plano-concave
Q. The plotting of small areas which can be commanded from a single station, is usually done on the plane table by the method of
a. radiation
b. intersection
c. traversing
d. resection
Q. In the surveying telescopes, cross hairs are fitted in
a. centre of the telescope
b. optical centre of the eye piece
c. front of the eye piece
d. front of the objective
Q. A line normal to the plumb line at all points is known as
a. horizontal line
b. vertical line
c. level line
d. line of collimation