Section 2

Question 1

An ideal transition curve is
A. cubic parabola
B. cubic spiral
C. clothoid spiral
D. true spiral

Answer 1

C. clothoid spiral

Question 2

Pantagraph is used for
A. measuring distances
B. measuring areas
C. enlarging or reducing plans
D. setting out right angles

Answer 2

C. enlarging or reducing plans

Question 3

If the angular measurements of a traverse are more
precise than its linear measurements, balancing of the
traverse, is done by
A. Bowditch’s rule
B. Transit rule
C. Empirical rule
D. all of the above

Answer 3

B. Transit rule

Question 4

The branch of surveying in which both horizontal and
vertical positions of a point, are determined by making
instrumental observations, is known
A. tacheometry
B. tachemetry
C. telemetry
D. all the above

Answer 4

D. all the above

Question 5

In levelling operation
A. when the instrument is being shifted, the staff must not
be moved
B. when the staff is being carried forward, the instrument
must remain stationary
C. both (a) and (b)
D. neither (a) nor (b)

Answer 5

C. both (a) and (b)

Question 6

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
A. 2.828
B. 3.828
C. 1.828
D. 0.828

Answer 6

A. 2.828

Question 7

The angle between two plane mirrors of optical square, is
A. 20°
B. 30°
C. 45°
D. 60°
E. 90°

Answer 7

C. 45°

Question 8

The latitude of a traverse leg is obtained by multiplying its
length by
A. tangent of its reduced bearing
B. sign of its reduced bearing
C. cosine of its reduced bearing
D. cosecant of its reduced bearing

Answer 8

C. cosine of its reduced bearing

Question 9

For a curve of radius 100 m and normal chord 10 m, the
Rankine’s deflection angle, is
A. 0°25’.95
B. 0°35’.95
C. 1°25’.53
D. 1°35’.95
E. 2°51’.53

Answer 9

E. 2°51’.53

Question 10

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 is 15 m, the error is
approximately equal to
A. cumulative, + 0.11 m
B. compensating, ± 0.11 m
C. cumulative, - 0.11 m
D. none of these

Answer 10

A. cumulative, + 0.11 m

Question 11

In optical reading instruments
A. the vertical circle is usually continuous from 0° to 359°
B. the readings increase when the telescope is elevated in
the face left position
C. the readings decrease when the telescope is elevated in
the face right position
D. all the above

Answer 11

D. all the above

Question 12

For setting out a simple curve, using two theodolites.
A. offsets from tangents are required
B. offsets from chord produced are required
C. offsets from long chord are required
D. deflection angles from Rankine’s formula are required
E. none of these

Answer 12

E. none of these

Question 13

Geodetic surveying is undertaken
A. for production of accurate maps of wide areas
B. for developing the science of geodesy
C. making use of most accurate instruments and methods of
observation
D. for determination of accurate positions on the earth’s
surface of system of control points
E. all the above

Answer 13

E. all the above

Question 14

The desired sensitivity of a bubble tube with 2 mm
divisions is 30”. The radius of the bubble tube should be
A. 13.75 m
B. 3.44 m
C. 1375 m
D. none of these

Answer 14

A. 13.75 m

Question 15

A dumpy level was set up at the midpoint between two
pegs A and B, 50 m apart and the staff readings
at A and B were 1.22 and 1.06. With the level set up a A, the
readings at A and B were 1.55 and 1.37. The collimation
error per 100 m length of sight is
A. 0.02 m inclined upwards
B. 0.04 m inclined downwards
C. 0.04 m inclined upward
D. none of these

Answer 15

B. 0.04 m inclined downwards

Question 16

Keeping the instrument height as 1 ½ m, length of staff 4
m, the up gradient of the ground 1 in 10, the sight on the up
slope must be less than
A. 25 cm
B. 20 m
C. 45 m
D. 10 m

Answer 16

C. 45 m

Question 17

True meridian of different places
A. converge from the south pole to the north pole
B. converge from the north pole to the south pole
C. converge from the equator to the poles
D. run parallel to each other

Answer 17

C. converge from the equator to the poles

Question 18

Let angular value of one graduation of a tube of
length x be φ seconds and R be the radius of its internal
curved surface, then
a. φ = x/206265R
b. φ = R/206265x
c. φ = 206265/x.R
d. φ = x.R/206265

Answer 18

a. φ = x/206265R

Question 19

Pick up the correct statement from the following :
A. the length of the brass handle is included in the length of
chain
B. the handles are on swivel joints to prevent twisting of the
chain
C. the fifth tag from either end of the chain is numbered 5
D. the length of the Gunter’s chain is 66 ft.
E. all the above

Answer 19

E. all the above

Question 20

Two hill tops A and B 20 km 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
A. passes clear of hill top C
B. passes below the hill top C
C. grazes the hill top C
D. none of these

Answer 20

B. passes below the hill top C

Question 21

The diaphragm of a stadia theodolite is fitted with two
additional
A. horizontal hairs
B. vertical hairs
C. horizontal and two vertical hairs
D. none of these

Answer 21

A. horizontal hairs

Question 22

Centering error of a theodolite produces an error
A. in all angles equally
B. which does not vary with the direction or pointing
C. which varies with the direction of pointing and inversely
with the length of sight
D. none of these

Answer 22

C. which varies with the direction of pointing and inversely
with the length of sight

Question 23

In levelling operation
A. if second reading is more than first, it represents a rise
B. if first reading is more than second, it represents a rise
C. if first reading is less than second, it represents a fall
D. if second reading is less than first, it represents a fall
E. both (b) and (c)

Answer 23

E. both (b) and (c)

Question 24

A tape of length l and weight W kg/m is suspended at its
ends with a pull of P kg, the sag correction is ?

Answer 24

a. L³W²/24P²

Question 25

Pick up the correct statement from the following : A. 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 B. 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 C. a line passing through the optical centre of the objective traversing through the eyepiece, is called line of sight D. 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 E. all the above

Answer 25

E. all the above

Question 26

The operation of making the algebraic sum of latitudes and departures of a closed traverse, each equal to zero, is known A. balancing the sights B. balancing the departures C. balancing the latitudes D. balancing the traverse

Answer 26

D. balancing the traverse

Question 27

If the sight distance (S) is equal to the length of the vertical-curve (2l) joining two grades g1% and - g2%, the height of the apex will be

Answer 27

b. (g1-g2)/400

Question 28

Orientation of a plane table by solving two point problem is only adopted when A. saving of time is a main factor B. better accuracy is a main factor C. given points are inaccessible D. none of these

Answer 28

C. given points are inaccessible

Question 29

A back sight A. is always taken on a point of known elevation or can be computed B. is added to the known level to obtain the instrument height C. taken on an inverted staff is treated as negative D. all the above

Answer 29

D. all the above

Question 30

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

Answer 30

d. measured area × (length of chain used/nominal chain length)²

Question 31

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 A. 100 sq. km of area B. 150 sq. km of area C. 200 sq. km of area D. none of these

Answer 31

C. 200 sq. km of area

Question 32

The systematic errors which persist and have regular effects in the performance of a survey operation, are due to A. carelessness B. faulty instrument C. inattention D. none of these

Answer 32

B. faulty instrument

Question 33

It θ is the probable error of an observed bearing of a line of length l, the error over the whole length of the traverse of n lines of length l is

Answer 33

A. ln

Question 34

The best method of interpolation of contours, is by A. estimation B. graphical means C. computation D. all of these

Answer 34

C. computation

Question 35

Pick up the correct specification of Ramsden eyepiece from the following : A. it consists of two equal piano convex lenses B. the curved surfaces of plano-convex lenses face each other C. the two lenses are separated by a distance equal to 2/3 of the focal length of either lens. D. 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 E. all the above

Answer 35

E. all the above

Question 36

The conventional sign shown in below figure represents a A. bridge carrying railway below road B. bridge carrying road below railway C. bridge carrying road and railway at the same level D. a level crossing

Answer 36

A. bridge carrying railway below road

Question 37

Deviation of the actual road gradient from the proposed contou'r gradient up hill side, involves A. embankment on the centre line B. excavation on the centre line C. earth work on the centre line D. none of these

Answer 37

B. excavation on the centre line

Question 38

Measuring with a 30 m chain, 0.01 m too short, introduces A. positive compensating error B. negative compensating error C. positive cumulative error D. negative cumulative error

Answer 38

C. positive cumulative error

Question 39

Setting out a curve by two theodolite method, involves A. linear measurements only B. angular measurements only C. both linear and angular measurements D. none of these

Answer 39

B. angular measurements only

Question 40

When the bubble of the level tube of a level, remains central A. line of sight is horizontal B. axis of the telescope is horizontal C. line of collimation is horizontal D. geometrical axis of the telescope is horizontal

Answer 40

A. line of sight is horizontal

Question 41

Pick up the correct statement from the following : A. the power of a lens is the reciprocal of its focal length B. the unit of power of the lens is diopter C. the power of two or more thin lenses in contact is the power of the combination of the lenses D. all the above

Answer 41

D. all the above

Question 42

The area of a plane triangle ABC, having its base AC and perpendicular height h, is

Answer 42

a. ½bh b. ½basinC c. ½bcsinA d. Heron's Formula e. All of the above

Question 43

The vertical angle between longitudinal axis of a freely suspended magnetic needle and a horizontal line at its pivot, is known A. declination B. azimuth C. dip D. bearing

Answer 43

C. dip

Question 44

A relatively fixed point of known elevation above datum, is called A. bench mark B. datum point C. reduced level D. reference point

Answer 44

A. bench mark

Question 45

Cross hairs in surveying telescopes, are fitted A. in the objective glass B. at the centre of the telescope C. at the optical centre of the eye piece D. in front of the eye piece

Answer 45

D. in front of the eye piece

Question 46

Metric chains are generally available in A. 10 m and 20 m length B. 15 m and 20 m length C. 20 m and 30 m length D. 25 m and 100 m length

Answer 46

C. 20 m and 30 m length

Question 47

On a diagonal scale, it is possible to read up to A. one dimension B. two dimensions C. three dimensions D. four dimensions

Answer 47

C. three dimensions

Question 48

Plotting of inaccessible points on a plane table, is done by A. intersection B. traversing C. radiation D. none of these

Answer 48

A. intersection

Question 49

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 1.540 m and the reading on peg B is 0.705 m. The level is then setup over B. The height of the eyepiece above peg B is 1.490 m and a reading on A is 2.195 m. The difference in level between A and B is A. 2.900 m B. 3.030 m C. 0.770 m D. 0.785 m E. 1.770 m

Answer 49

C. 0.770 m

Question 50

Probable systematic error in precise levelling as recommended by International Geodetic Association should not exceed (where k is in kilometers.) A. ± 0.1 k mm B. ± 0.2 k mm C. ± 0.1 k D. 0.2 k mm

Answer 50

D. 0.2 k mm