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This set of Surveying Multiple Choice Questions & Answers (MCQs) focuses on Surveying Set 2
Q1 | If the magnetic bearing of the sun at a place at noon in southern hemisphere is 167°, the magnetic declination at thatplace is
- 77° N
- 23° S
- 13° E
- 13° W
Q2 | The graduations in prismatic compassi) are invertedii) are uprightiii) run clockwise having 0° at southiv) run clockwise having 0° at northThe correct answer is
- (i) and (iii)
- (i) and (iv)
- (ii) and (iii)
- (ii) and (iv)
Q3 | Agate cap is fitted with a
- cross staff
- level
- chain
- prismatic compass
Q4 | The temporary adjustments of a prismatic compass arei) Centeringii) Levellingiii) Focusing the prismThe correct order is
- (0, (iii), 00
- (0, (ii), (iii)
- (ii), (iii), 0)
- (in), (i), (ii)
Q5 | Theodolite is an instrument used for
- tightening the capstan-headed nuts of level tube
- measurement of horizontal angles only
- measurement of vertical angles only
- measurement of both horizontal and vertical angles
Q6 | The process of turning the telescope about the vertical axis inhorizontal plane is known as
- transiting
- reversing
- plunging
- swinging
Q7 | Size of a theodolite is specified by
- the length of telescope
- the diameter of vertical circle
- the diameter of lower plate
- the diameter of upper plate
Q8 | Which of the following is not the function of levelling head ?
- to support the main part of the instrument
- to attach the theodolite to the tripod
- to provide a means for leveling the theodolite
- none of the above
Q9 | If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated
- on its outer spindle with a relative motion between the vernier and graduated scale of lower plate
- on its outer spindle without a relative motion between the vernier and graduated scale of lower plate
- on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate
- on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate
Q10 | A telescope is said to be inverted if its
- vertical circle is to its right and the bubble of the telescope is down
- vertical circle is to its right and the bubble of the telescope is up
- vertical circle is to its left and the bubble of the telescope is down
- vertical circle is to its left and the bubble of the telescope is up
Q11 | The cross hairs in the surveying telescope are placed
- midway between eye piece and objec¬tive lens
- much closer to the eye-piece than to the objective lens
- much closer to the objective lens than to the eye piece
- anywhere between eye-piece and objective lens
Q12 | For which of the following permanent adjustments of theodolite, the spire testis used ?
- adjustment of plate levels
- adjustment of line of sight
- adjustment of horizontal axis
- adjustment of altitude bubble and vertical index frame
Q13 | The adjustment of horizontal cross hair is required particularly when the instrument is used for
- leveling
- prolonging a straight line
- measurement of horizontal angles
- all of the above
Q14 | Which of the following errors is not eliminated by the method of repetition ofhorizontal angle measurement ?
- error due to eccentricity of verniers
- error due to displacement of station signals
- error due to wrong adjustment of line of collimation and trunnion axis
- error due to inaccurate graduation
Q15 | The error due to eccentricity of inner and outer axes can be eliminated by
- reading both verniers and taking the mean of the two
- taking both face observations and taking the mean of the two
- double sighting
- taking mean of several readings distributed over different portions of the graduated circle
Q16 | In the double application of principle of reversion, the apparent error is
- equal to true error
- half the true error
- two times the true error
- four times the true error
Q17 | Which of the following errors can be eliminated by taking mean of bot faceobservations ?
- error due to imperfect graduations
- error due to eccentricity of verniers
- error due to imperfect adjustment of plate levels
- error due to line of collimation not being perpendicular to horizontal axis
Q18 | Which of the following errors cannot be eliminated by taking both face observations ?
- error due to horizontal axis not being perpendicular to the vertical axis
- index error i.e. error due to imperfect adjustment of the vertical circle vernier
- error due to non-parallelism of the axis of telescope level and line of collimation
- none of the above
Q19 | 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
- increase
- decrease
- not change
- either ‘a’ or ‘b’
Q20 | 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
- only (i)
- both (i) and (iv)
- only (iii)
- both (ii) and (iii)
Q21 | A’level line’is a
- horizontal line
- line parallel to the mean spheriodal surface of earth
- line passing through the center of cross hairs and the center of eye piece
- line passing through the objective lens and the eye-piece of a dumpy or tilting level
Q22 | The following sights are taken on a “turning point”
- foresight only
- backsight only
- foresight and backsight
- foresight and intermediate sight
Q23 | The rise and fall method of levelling provides a completed check on
- backsight
- intermediate sight
- foresight
- all of the above
Q24 | 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
- 99.345 m
- 100.345 m
- 100.655m
- 101.870m
Q25 | In an internal focussing type of telescope, the lens provided is
- concave
- convex
- plano-convex
- plano-concave