Surveying MCQs Set-3

Page 1 of 4

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

angle from one transit station and distance from the other one

distances from two transit stations

angles from two transit stations

angles and distances from transit stations

2. A metallic tape is made of

invar

steel

linen

cloth and wires

3. '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

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

weighted observation

true error

residual error

conditional error

5. 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

Indirect method is relatively more expansive

Direct method is expensive

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

same

none of these

both of these

different

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

none of these

indirect ranging

ranging

direct ranging

8. Theory of probability is applied to

accidental errors only

none of these

both accidental and cumulative errors

cumulative errors only

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

transit rule

theodolite correction

bowditch rule

Graphical method

10. Contours can be found in a _________________ map.

Physical

Topographical

Political

Thematic

Page 2 of 4

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

both right swing and left swing

both verniers

different parts of main scale

right and left faces

12. The error due to bad ranging is

cumulative; positive

cumulative; positive or negative

cumulative; negative

compensating

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

perpendicular offsets

oblique offsets

optical square

cross staff

14. 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

16

64

4

10

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

repetition

reiteration

double precision

by deflection angles

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

Radial curve

C-curve

Inverted curve

French curve

17. The main object of running a tie line is

to take details of nearby objects

none of these

to check accuracy of work

to take offsets for detailed surveying

18. A contour line joins all the points having

equal vertical angles

similar reference points

equal elevation

zero elevation

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

perpendicular offset

offset from chord produced

radial offset

successive bisection of arcs

20. Indirect methods uses how many methods?

3

6

4

2

Page 3 of 4

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

U-shaped

L-shaped

S-shaped

V-shaped

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

80 sq km

260 sq km

1500 sq km

500 sq km

23. Geodetic surveying is different from plane surveying because of

the curvature of the earth

undulations of the topography

the large difference of elevations between various points

coverage of very large area

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

150

200

180

100

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

Intersection method

Radiation method

Back scattering method

Traversing method

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

45°

30°

20°

60°

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

metallic tape

steel tape

chain

invar tape

28. Theodolite is an instrument used for measuring

(d) none of these

(b) vertical angle

(a) horizontal angle

(c) both (a) and (b)

29. An invar tape is made of an alloy of

nickel and steel

brass and nickel

brass and steel

copper and steel

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

consecutive coordinates

independent coordinates

chords

Both of these

Page 4 of 4

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

Foot screws

Contour dams

Contour maps

Level vials

32. 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

180 m

4 chains

120 m

6 chains

33. How many methods of contouring are present?

3

4

5

2

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

tie line

check line

base line

all of these

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

ceylon ghat tracer

abney level

alidade

optical square

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

circular curve ranging

astronomical survey

geodetic survey

tachometric survey

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

permanent benchmarks

temporary benchmarks

GTS benchmarks

arbitrary benchmarks

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

planimeter

clinometer

graphometer

theodolite

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

Ridge line

Watershed line

Catchment line

Dam line

40. 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 270°

more than 180° but not more than 225°

equal to 180°

less than 180°

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