Surveying MCQs Set-3

Page 1 of 4

1. Which of the following is not a method used for plane table surveying?

Traversing method

Back scattering method

Radiation method

Intersection method

2. Theory of probability is applied to

cumulative errors only

both accidental and cumulative errors

none of these

accidental errors only

3. The longest chain line passing through the centre of the area is known as

check line

tie line

all of these

base line

4. Number of links in a 30m metric chain is

100

180

200

150

5. The difference between the most probable value of a quantity and its observed value is

weighted observation

conditional error

residual error

true error

6. A contour line joins all the points having

equal vertical angles

equal elevation

zero elevation

similar reference points

7. Which of the following is not true for the direct and indirect methods of contouring?

Indirect method is less accurate but is faster

Direct method is most accurate but is slow

Direct method is expensive

Indirect method is relatively more expansive

8. For locating a distance object visible from two transit stations, the method usually preferred is

angles from two transit stations

distances from two transit stations

angle from one transit station and distance from the other one

angles and distances from transit stations

9. The instrument, which is used to measure area upon contour map is

theodolite

graphometer

planimeter

clinometer

10. The process of marking intermediate points on a survey line is known as

indirect ranging

none of these

direct ranging

ranging

Page 2 of 4

11. Indirect methods uses how many methods?

6

4

2

3

12. An invar tape is made of an alloy of

brass and nickel

nickel and steel

brass and steel

copper and steel

13. The curvature of the Earth's surface is taken into account only if the extent of survey is more than

260 sq km

1500 sq km

80 sq km

500 sq km

14. A contour interval is the __________________ for all purposes.

same

different

none of these

both of these

15. The main object of running a tie line is

none of these

to take details of nearby objects

to check accuracy of work

to take offsets for detailed surveying

16. If the probable error in single observation is ±0.04 m and that of the mean is ±0.01 m, then the number of observations are

4

64

16

10

17. The curves used for drawing lines between points in a contour line is

Radial curve

Inverted curve

French curve

C-curve

18. In case of angular measurements being more precise than the linear measurements, the traverse can be balanced by

theodolite correction

transit rule

bowditch rule

Graphical method

19. For setting out right angles, the instrument used is

abney level

alidade

optical square

ceylon ghat tracer

20. To observe the included angle accurately, method preferred is

double precision

by deflection angles

repetition

reiteration

Page 3 of 4

21. In a transit theodolite, error due to eccentricity of verniers is eliminated by reading

different parts of main scale

both right swing and left swing

right and left faces

both verniers

22. Which one of the following is carried out by two theodolite method?

geodetic survey

astronomical survey

tachometric survey

circular curve ranging

23. Which one of the following linear methods of setting out a circular curve needs reference of the centre of the curve?

offset from chord produced

successive bisection of arcs

radial offset

perpendicular offset

24. A metallic tape is made of

linen

invar

cloth and wires

steel

25. Contours can be found in a _________________ map.

Topographical

Physical

Thematic

Political

26. The gale method of traversing consists of plotting the points by

Both of these

chords

independent coordinates

consecutive coordinates

27. A triangle is said to be well conditioned if none of its angles is less than

60°

30°

20°

45°

28. During chaining along a straight line, the leader of the party has 4 arrows in his hand while the follower has 6. Distance of the follower from the starting point is

6 chains

4 chains

120 m

180 m

29. The error due to bad ranging is

cumulative; negative

cumulative; positive or negative

cumulative; positive

compensating

30. The reference points on which a day's work is closed and from where levelling is continued the next day are called as

arbitrary benchmarks

temporary benchmarks

GTS benchmarks

permanent benchmarks

Page 4 of 4

31. Theodolite is an instrument used for measuring

(a) horizontal angle

(b) vertical angle

(d) none of these

(c) both (a) and (b)

32. The line which separates the catchment basin from the rest of the area is

Catchment line

Ridge line

Dam line

Watershed line

33. ____________________ are not mandatory in civil engineering projects like road works, dams, canals, etc.

Contour maps

Foot screws

Level vials

Contour dams

34. 'Offsets' are

short measurements from chain line

chain lines which go out of alignment

ties or check lines which are perpendicular to chain line

sets of minor instruments in chain surveying

35. The position of a point can be fixed more accurately by

cross staff

oblique offsets

optical square

perpendicular offsets

36. How many methods of contouring are present?

3

2

4

5

37. Which shaped lines indicate the presence of a ridge?

L-shaped

U-shaped

S-shaped

V-shaped

38. The sum of the three interior angles of a triangle, the vertices of which lie on the surface of the earth, covering a vast area of several hundreds of km² is

more than 180° but not more than 225°

equal to 180°

less than 180°

more than 180° but not more than 270°

39. Which of the following instruments is generally used for base line measurements?

metallic tape

steel tape

invar tape

chain

40. Geodetic surveying is different from plane surveying because of

the curvature of the earth

coverage of very large area

undulations of the topography

the large difference of elevations between various points

Surveying MCQs Set-3

Related

Leave a ReplyCancel reply

Secured Payments

Protection

Surveying MCQs Set-3

Share this Now with Friends:

Related

Leave a ReplyCancel reply

Secured Payments

Protection