Q.1

The sum of the interior angles of a geometrical figure laid on the surface of the earth differs from that of the corresponding plane figure only to the extent of one second for every

  • 100 sq. km of area
  • 150 sq. km of area
  • 200 sq. km of area
  • none of these.
Q.2

If the rate of gain of radial acceleration is 0.3 m per sec3 and full centrifugal ratio is developed. On the curve the ratio of the length of the transition curve of same radius on road and railway, is

  • 2.828
  • 3.828
  • 1.828
  • 0.828.
Q.3

In optical reading instruments

  • the vertical circle is usually continuous from 0° to 359°
  • the readings increase when the telescope is elevated in the face left position
  • the readings decrease when the telescope is elevated in the face right position
  • all the above.
Q.4

The systematic errors which persist and have regular effects in the performance of a survey operation, are due to

  • carelessness
  • faulty instrument
  • inattention
  • none of these.
Q.5

The angle between two plane mirrors of optical square, is

  • 20°
  • 30°
  • 45°
  • 60°
  • 90°.
Q.6

For setting out a simple curve, using two theodolites.

  • offsets from tangents are required
  • offsets from chord produced are required
  • offsets from long chord are required
  • deflection angles from Rankine's formula are required
  • none of these.
Q.7

Metric chains are generally available in

  • 10 m and 20 m length
  • 15 m and 20 m length
  • 20 m and 30 m length
  • 25 m and 100 m length
Q.8

The operation of making the algebraic sum of latitudes and departures of a closed traverse, each equal to zero, is known

  • balancing the sights
  • balancing the departures
  • balancing the latitudes
  • balancing the traverse.
Q.9

Pick up the correct statement from the following :

  • the power of a lens is the reciprocal of its focal length
  • the unit of power of the lens is diopter
  • the power of two or more thin lenses in contact is the power of the combination of the lenses
  • all the above.
Q.10

The diaphragm of a stadia theodolite is fitted with two additional

  • horizontal hairs
  • vertical hairs
  • horizontal and two vertical hairs
  • none of these.
Q.11

The latitude of a traverse leg is obtained by multiplying its length by

  • tangent of its reduced bearing
  • sign of its reduced bearing
  • cosine of its reduced bearing
  • cosecant of its reduced bearing.
Q.12

Geodetic surveying is undertaken

  • for production of accurate maps of wide areas
  • for developing the science of geodesy
  • making use of most accurate instruments and methods of observation
  • for determination of accurate positions on the earth's surface of system of control points
  • all the above.
Q.13

On a diagonal scale, it is possible to read up to

  • one dimension
  • two dimensions
  • three dimensions
  • four dimensions.
Q.14

Deviation of the actual road gradient from the proposed contou'r gradient up hill side, involves

  • embankment on the centre line
  • excavation on the centre line
  • earth work on the centre line
  • none of these.
Q.15

Centering error of a theodolite produces an error

  • in all angles equally
  • which does not vary with the direction or pointing
  • which varies with the direction of pointing and inversely with the length of sight
  • none of these.
Q.16

Deviation of the actual road gradient from the proposed contou'r gradient up hill side, involves

  • embankment on the centre line
  • excavation on the centre line
  • earth work on the centre line
  • none of these.
Q.17

True meridian of different places

  • converge from the south pole to the north pole
  • converge from the north pole to the south pole
  • converge from the equator to the poles
  • run parallel to each other.
Q.18

True meridian of different places

  • converge from the south pole to the north pole
  • converge from the north pole to the south pole
  • converge from the equator to the poles
  • run parallel to each other.
Q.19

The best method of interpolation of contours, is by

  • estimation
  • graphical means
  • computation
  • all of these.
Q.20

For a curve of radiusm and normal chordm, the Rankine's deflection angle, is

  • 0°25'.95
  • 0°35'.95
  • 1°25'.53
  • 1°35'.95
  • 2°51'.53.
Q.21

The desired sensitivity of a bubble tube with 2 mm divisions is 30". The radius of the bubble tube should be

  • 13.75 m
  • 3.44 m
  • 1375 m
  • none of these.
Q.22

Plotting of inaccessible points on a plane table, is done by

  • intersection
  • traversing
  • radiation
  • none of these.
Q.23

Measuring with am chain, 0.m too short, introduces

  • positive compensating error
  • negative compensating error
  • positive cumulative error
  • negative cumulative error.
Q.24

Orientation of a plane table by solving two point problem is only adopted when

  • saving of time is a main factor
  • better accuracy is a main factor
  • given points are inaccessible
  • none of these.
Q.25

The vertical angle between longitudinal axis of a freely suspended magnetic needle and a horizontal line at its pivot, is known

  • declination
  • azimuth
  • dip
  • bearing.
Q.26

Pick up the correct specification of Ramsden eyepiece from the following :

  • it consists of two equal piano convex lenses
  • the curved surfaces of plano-convex lenses face each other
  • the two lenses are separated by a distance equal to 2/3 of the focal length of either lens.
  • the distance between the diaphragm and the front lens of the eyepiece is kept equal to 1/4 th of the focal length of a lens so that rays from a point on the diaphragm enter the eye as a parallel beam
  • all the above.
Q.27

A uniform slope was measured by the method of stepping. If the difference in level between two points is 1.8 m and the slope distance between them ism, the error is approximately equal to

  • cumulative, + 0.11 m
  • compensating, ± 0.11 m
  • cumulative, - 0.11 m
  • none of these
Q.28

A dumpy level was set up at the midpoint between two pegs A and B,m apart and the staff readings at A and B were 1.and 1.With the level set up a A, the readings at A and B were 1.and 1.The collimation error perm length of sight is

  • 0.02 m inclined upwards
  • 0.04 m inclined downwards
  • 0.04 m inclined upward
  • none of these.
Q.29

A dumpy level is set up with its eye-piece vertically over a peg A. The height from the top of peg A to the centre of the eye-piece is 1.m and the reading on peg B is 0.m. The level is then setup over B. The height of the eye-piece above peg B is 1.m and a reading on A is 2.m. The difference in level between A and B is

  • 2.900 m
  • 3.030 m
  • 0.770 m
  • 0.785 m
  • 1.770 m.
Q.30

Setting out a curve by two theodolite method, involves

  • linear measurements only
  • angular measurements only
  • both linear and angular measurements
  • none of these.
Q.31

A back sight

  • is always taken on a point of known elevation or can be computed
  • is added to the known level to obtain the instrument height
  • taken on an inverted staff is treated as negative
  • all the above.
Q.32

A relatively fixed point of known elevation above datum, is called

  • bench mark
  • datum point
  • reduced level
  • reference point.
Q.33

Pick up the correct statement from the following :

  • the length of the brass handle is included in the length of chain
  • the handles are on swivel joints to prevent twisting of the chain
  • the fifth tag from either end of the chain is numbered 5
  • the length of the Gunter's chain is 66 ft.
  • all the above.
Q.34

Probable systematic error in precise levelling as recommended by International Geodetic Association should not exceed
(where k is in kilometers.)

  • ± 0.1 k mm
  • ± 0.2 k mm
  • ± 0.1 k
  • 0.2 k mm.
Q.35

When the bubble of the level tube of a level, remains central

  • line of sight is horizontal
  • axis of the telescope is horizontal
  • line of collimation is horizontal
  • geometrical axis of the telescope is horizontal.
Q.36

Cross hairs in surveying telescopes, are fitted

  • in the objective glass
  • at the centre of the telescope
  • at the optical centre of the eye piece
  • in front of the eye piece.
Q.37

Pick up the correct statement from the following :

  • in astronomical telescope, the rays from the object after refraction at the objective are brought to a focus before entering the eyepiece to produce a real inverted image in front of the eye piece
  • in Galileo's telescope, the rays from the object get refracted at the objective and are intercepted by the eyepiece before a real image is formed
  • a line passing through the optical centre of the objective traversing through the eyepiece, is called line of sight
  • the line of sight which passes through the intersection of cross-lines marked on a diaphragm fixed in front of the eyepiece in a plane at right-angles to the axis, is called the line of collimation
  • all the above.
Q.38

Two hill tops A and Bkm apart are intervened by a third top C. If the top most contour of the three hill tops are of the same value, state whether the line of sight AB

  • passes clear of hill top C
  • passes below the hill top C
  • grazes the hill top C
  • none of these.
Q.39

Pick up the correct statement from the following :

  • in astronomical telescope, the rays from the object after refraction at the objective are brought to a focus before entering the eyepiece to produce a real inverted image in front of the eye piece
  • in Galileo's telescope, the rays from the object get refracted at the objective and are intercepted by the eyepiece before a real image is formed
  • a line passing through the optical centre of the objective traversing through the eyepiece, is called line of sight
  • the line of sight which passes through the intersection of cross-lines marked on a diaphragm fixed in front of the eyepiece in a plane at right-angles to the axis, is called the line of collimation
  • all the above.
Q.40

Pick up the correct specification of Ramsden eyepiece from the following :

  • it consists of two equal piano convex lenses
  • the curved surfaces of plano-convex lenses face each other
  • the two lenses are separated by a distance equal to 2/3 of the focal length of either lens.
  • the distance between the diaphragm and the front lens of the eyepiece is kept equal to 1/4 th of the focal length of a lens so that rays from a point on the diaphragm enter the eye as a parallel beam
  • all the above.
Q.41

If the area calculated form the plan plotted with measurements by an erroneous chain, accurate area of the plan is

  • none of the above
Q.42

Cross hairs in surveying telescopes, are fitted

  • in the objective glass
  • at the centre of the telescope
  • at the optical centre of the eye piece
  • in front of the eye piece.
Q.43

Two hill tops A and Bkm apart are intervened by a third top C. If the top most contour of the three hill tops are of the same value, state whether the line of sight AB

  • passes clear of hill top C
  • passes below the hill top C
  • grazes the hill top C
  • none of these.
Q.44

If the area calculated form the plan plotted with measurements by an erroneous chain, accurate area of the plan is

  • none of the above
Q.45

An ideal transition curve is

  • cubic parabola
  • cubic spiral
  • clothoid spiral
  • true spiral.
Q.46

The direction of steepest slope on a contour, is

  • along the contour
  • at an angle of 45° to the contour
  • at right angles to the contour
  • none of these.
Q.47

If α is the angle between the polar ray and the tangent at the point of commencement of a lemniscate curve, the equation of the curve, is

  • l = ksin α
  • l = ksin 2α
  • l = ksin 3α
  • l = ktan 2α
  • l = kcos 2α
Q.48

In case of reduction of levels by the height of instrument method,

  • ∑ B.S. - ∑ F.S. = difference in R.L.S of the first station and last station
  • ∑ (R.L. + I + F.S.) - first R.L = ∑ (H.I. + No. of R.L.s.)
  • both (a) and (b) above
  • neither (a) nor (b).
Q.49

Pick up the correct statement from the following :

  • in the earth's magnetic field, a magnetic needle rests in magnetic meridian
  • the angle between the true meridian and the magnetic meridian is called magnetic variation
  • one end of the magnetic needle supported at its centre of gravity tends to dip down towards the. nearer magnetic pole of the earth
  • the magnet properly pivoted is balanced by means of riding weight movable along the needle
  • all the above.
Q.50

A traverse deflection angle is

  • less than 90°
  • more than 90° but less than 180°
  • the difference between the included angle and 180°
  • the difference between 360° and the included angle.
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