Q.1

The main principle of surveying is to work

  • from part to the whole
  • from whole to the part
  • from higher level to the lower level
  • from lower level to higher level.
Q.2

One of the tacheometric constants is additive, the other constant, is

  • subtractive constant
  • multiplying constant
  • dividing constant
  • indicative constant.
Q.3

One of the tacheometric constants is additive, the other constant, is

  • subtractive constant
  • multiplying constant
  • dividing constant
  • indicative constant.
Q.4

Keeping the instrument height as 1.5 m, length of staff 4 m, the slope of the ground as 1 inthe sight on the down-slope, must be less than

  • 30 m
  • 25 m
  • 20 m
  • 15 m
Q.5

In chain surveying tie lines are primarily provided

  • to check the accuracy of the survey
  • to take offsets for detail survey
  • to avoid long offsets from chain lines
  • to increase the number of chain lines.
Q.6

Pick up the method of surveying in which field observations and plotting proceed simultaneously from the following

  • chain surveying
  • compass surveying
  • plan table surveying
  • tacheometric surveying.
Q.7

The 'fix' of a plane table station with three known points, is bad if the plane table station lies

  • in the great triangle
  • outside the great triangle
  • on the circumference of the circumscribing circle
  • none of these.
Q.8

The accuracy of measurement in chain surveying, does not depend upon

  • length of the offset
  • scale of the plotting
  • importance of the features
  • general layout of the chain lines.
Q.9

True meridians are generally preferred to magnetic meridians because

  • these converge to a point
  • these change due to change in time
  • these remain constant.
  • None of these.
Q.10

For the construction of highway (or railway)

  • longitudinal sections are required
  • cross sections are required
  • both longitudinal and cross sections are required
  • none of these.
Q.11

The accuracy of measurement in chain surveying, does not depend upon

  • length of the offset
  • scale of the plotting
  • importance of the features
  • general layout of the chain lines.
Q.12

The limiting length of an offset does not depend upon

  • accuracy of the work
  • method of setting out perpendiculars
  • scale of plotting
  • indefinite features to be surveyed.
Q.13

Pick up the correct statement from the following :

  • Box sextant is used for the measurement of horizontal angles
  • Cross staff is used for setting out right angles
  • Gradiometer is used for setting out any required gradient
  • Line ranger is used for locating intermediate stations on a survey line
  • All the above.
Q.14

Pick up the correct statement from the following :

  • the tangent screw enables to give small movement under conditions of smooth and positive control
  • standing on the tripod is the levelling head or trib arch
  • the levelling screws are used to tilt the instrument so that its rotation axis is truly vertical
  • all the above.
Q.15

While viewing through a level telescope and moving the eye slightly, a relative movement occurs between the image of the levelling staff and the cross hairs. The instrument is

  • correctly focussed
  • not correctly focussed
  • said to have parallax
  • free from parallax.
Q.16

The bearings of the lines AB and BC areand30'. The included angle ABC is

  • 102°
  • 78°
  • 45°
  • none of these.
Q.17

If R is the radius of the main curve, θ the angle of deflection, S the shift and L the length of the transition curve, then, total tangent length of the curve, is

  • (R - S) tan θ/2 - L/2
  • (R + S) tan θ/2 - L/2
  • (R + S) tan θ/2 + L/2
  • (R - S) tan θ/2 + L/2
  • (R - S) cos θ/2 + L/2
Q.18

Pick up the correct statement from the following :

  • the apparent error on reversal is twice the actual error
  • the correction may be made equal to half the observed discrepancy.
  • the good results may be obtained from a defective instrument by reversing and taking the mean of two erroneous results
  • all the above.
Q.19

If the radius of a simple curve is R, the length of the chord for calculating offsets by the method of chords produced, should not exceed.

  • R/10
  • R/15
  • R/20
  • R/25.
Q.20

The bearings of the lines AB and BC areand30'. The included angle ABC is

  • 102°
  • 78°
  • 45°
  • none of these.
Q.21

Closed contours of decreasing values towards their centre, represent

  • a hill
  • a depression
  • a saddle or pass
  • a river bed.
Q.22

If θ is the slope of the ground and l is the measured distance, the correction is

  • 2l sin2 θ/2
  • 2l cos2 θ/2
  • 2l tan2 θ/2
  • 2l cot2 θ/2.
Q.23

Closed contours of decreasing values towards their centre, represent

  • a hill
  • a depression
  • a saddle or pass
  • a river bed.
Q.24
Direct method of contouring is
  • a quick method
  • adopted for large surveys only
  • most accurate method
  • suitable for hilly terrains
Q.25
Local attraction in compass surveying may exist due to
  • incorrect levelling of the magnetic needle
  • loss of magnetism of the needle
  • friction of the needle at the pivot
  • presence of magnetic substances near the instrument
Q.26
Refraction correction
  • completely eliminates curvature correction
  • partially eliminates curvature correction
  • adds to the curvature correction
  • has no effect on curvature correction
Q.27
The length of a chain is measured from
  • centre of one handle to centre of other handle
  • outside of one handle to outside of other handle
  • outside of one handle to inside of other handle
  • inside of one handle to inside of other handle
Q.28
The following sights are taken on a “turning point”
  • foresight only
  • backsight only
  • foresight and backsight
  • foresight and intermediate sight
Q.29
Agate cap is fitted with a
  • cross staff
  • level
  • chain
  • prismatic compass
Q.30
Three point problem can be solved by
  • Tracing paper method
  • Bessels method
  • Lehman’s method
  • all of the above
Q.31
The parallax equation Δp = BmΔh/H - h is applicable to entire overlap of the photographs only if parallax is measured
  • Normal to base line
  • Parallel to base line
  • Both (A) and (B)
  • Neither (A) nor (B)
Q.32
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
Q.33
Triangulation surveys are carried out for locating
  • Control points for surveys of large areas
  • Control points for photogrammetric surveys
  • Engineering works, i.e. terminal points of long tunnels, bridge abutments, etc.
  • All the above
Q.34
Accidental errors
  • Do not follow any definite mathematical law
  • Cannot be removed by applying corrections to the observed values
  • Are generally small
  • All the above
Q.35
Which of the following methods of contouring is most suitable for a hilly terrain?
  • Direct method
  • Square method
  • Cross-sections method
  • Tachometric method
Q.36
While doing construction work which among the following is more suitable
  • Traversing
  • Rise and Fall method
  • Height of the Instrument method
  • Compass Surveying
Q.37
A Nautical mile is
  • One minute arc of the great circle passing through two points
  • One minute arc of the longitude
  • 1855.109 m
  • All the above
Q.38
The size of a plane table is
  • 750 mm × 900 mm
  • 600 mm × 750 mm
  • 450 mm × 600 mm
  • 300 mm × 450 mm
Q.39
The horizontal angle between the true meridian and magnetic meridian at a place is called
  • azimuth
  • declination
  • local attraction
  • magnetic bearing
Q.40
Sensitiveness of a level tube is designated by
  • radius of level tube
  • length of level tube
  • length of bubble of level tube
  • none of the above
Q.41
International Date Line is located along
  • Standard meridian
  • Greenwich meridian
  • Equator
  • 180° longitude
Q.42
The nautical mile is the length of
  • 1 minute of latitude
  • 1 minute of longitude
  • 1 degree of latitude
  • 1 degree of longitude
Q.43
The average eye base is assumed as
  • 58 mm
  • 60 mm
  • 62 mm
  • 64 mm
Q.44
The solar tidal force divided by lunar tidal force is
  • 1/3
  • 1/2
  • 3/4
  • 5/4
Q.45
Latitude of the observer's position is equal to altitude of
  • North pole
  • Pole star
  • Celestial pole
  • All the above
Q.46
The principal plane contains
  • Nadir point
  • Iso-centre
  • Principal point
  • All the above
Q.47
The prime vertical passes through
  • The east point of the horizon
  • The west point of the horizon
  • The zenith point of the observer
  • All the above
Q.48
The number of horizontal cross wires in a stadia diaphragm is
  • one
  • two
  • three
  • four
Q.49
The declination and right ascension of the sun becomesS andrespectively on
  • March 21
  • June 21
  • September 21
  • December 22
Q.50
The declination and right ascension of the sun becomesN andrespectively on
  • March 21
  • June 21
  • September 21
  • December 22
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