Objective questions of Chain Surveying

Objective questions

1. Principle of surveying is to prevent accumulation of errors is

a. To work from whole to the part

b. To work from part to whole

c. Both a and b above

d. None of the above

2. Under survey “working from the whole to part” is done

a. To prevent the accumulation of error

b. To localize the errors

c. Both of the above

d. None of the above

3. The curvature of the earths surface is taken into account only if the extent of survey more than

a. 60 sq. kilometers

b. 160 sq. kilometers

c. 260 sq. kilometers

d. 500 sq. kilometers

4. Geodetic survey is different from plane surveying because of

a. Very large area is covered

b. The curvature of the earth is considered

c. Undulations of the topography

d. The large difference of the elevators

5. Hydrographical survey deals with mapping of

a. Large water bodies

b. Canal system

c. Cloud movement

d. None of above

6. The survey which is carried out for determining the absolute locations of earth by making observations to heavenly bodies is called

a. Hydrographical survey

b. Astronomical survey

c. Land survey

d. None of above

7. A scale representing either three units or only one unit and its fractions upto second place of decimal point is

a. Diagonal scale

b. Comparative scale

c. Simple vernier

d. Shrunk Scale

8. If smallest division of vernier is longer than the smallest division of its primary scale, the vernier is known as

a. Direct vernier

b. Double vernier

c. Dimple vernier

d. Retrograde vernier

9. Scale used to measure and to setout angle is

a. Diagonal Scale

b. Comparative Scale

c. Vernier Scale

d. Scale of chords

10. Discrepancy is the difference between

a. True value and error

b. Measured value and actual value

c. Two measured values of same quantity

d. None of above

11. Least count is given by

a. v-p

b. p-v

c. p+v

d. Both a & b of above

12. Which of the following scale is the smallest one

a. 1cm=10m

b. 1cm=100m

c. 1cm=1000m

d. 1cm=10⁴m

13. Compensating errors in chaining or other survey are

a. Proportional to the length of the line

b. Proportional to the square root of length of the line

c. Inversely proportional to the square root of the length of line

d. Inversely proportional to the length of line

14. Negative errors are caused in chain, when its length is

a. More than standard length

b. Less than the standard length

c. Equal to the standard length

d. Any of above

15. Theory of probability is applied to

a. Cumulative errors

b. Compensative errors

c. Accidental errors

d. None of above

16. The most probable value of an observed quantity available from a given set of observation is the one for which the sum of the square of errors in a minimum. This statement is called as

a. Principle of least square

b. Law of errors

c. Principle of square errors

d. None of above

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

a. Conditional error

b. Residual error

c. True error

d. Safe error

18. The maximum allowable limit upto that a measurement may vary from the true value is known as

a. Permissible error

b. Residual error

c. Expected error

d. Systematic error

19. Which one is the simplest survey

a. Chain survey

b. Compass survey

c. Plane table survey

d. Leveling

20. Chain surveying is used for small area in

a. Undulating ground

b. Fairly leveled ground

c. Sloping ground

d. Contour land

21. Cadastral map is a map having

a. Small scale

b. Medium scale

c. Large scale

d. All of above

22. Type of survey used to fix property line is

a. Topographical

b. Cadastral

c. City

d. Astronomical

23. An offset scale always has the zero mark at its

a. Middle

b. End

c. Either Middle or at End

d. None of above

24. Offsets are

a. Chain lines out of alignment

b. Measurements taken in chain surveying

c. Small measurements from chain line

d. None of above


25. Short offsets are measured with

a. An ordinary chain

b. An invar tape

c. A metallic tape

d. A steel tape

26. Butt rods are used for measuring

a. Base line

b. Tie line

c. Offset distance

d. Vertical distance

27. A 30m chain was found to be 20cm too long after chaining 1500m. The correct length of the total distance chained will be

a. 1490m

b. 1500m

c. 1505m

d. None of above

28. The chain which is not the standard metric chain length is

a. 10m

b. 20m

c. 25m

d. 30m

29. If a chain is found too short on testing, it can be adjusted by

a. Straightening the links

b. Inserting additional circular rings

c. Flattening the circular rings

d. Any of above

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

a. 100

b. 150

c. 180

d. 200

31. A chain is made up of mild steel or galvanized iron wire of diameter

a. 2mm

b. 4mm

c. 6mm

d. 8mm

32. Ranging is the process of

a. Marking some intermediate points in straight line, joining the two end points in the field

b. Fixing ranging rods on the extremities of a area

c. Taking offsets from a chain line

d. None of above

33. The important points selected at the ends of the chain lines to command the boundaries of the survey are known as

a. Main station

b. Subsidiary station

c. Tie station

d. None of above

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

a. Base line

b. Tie line

c. Check line

d. All of above

35. The tie line is run through the survey to

a. Take offsets for detailed surveying

b. Take details of nearby objects

c. Check accuracy of work

d. None of above

36. Invar tapes are made up of an alloy of

a. Nickel & Steel (36% & 64%)

b. Copper & Steel

c. Tin & Steel

d. Aluminium & Steel

37. Metallic tapes are made up of

a. Steel

b. Invar

c. Cloth & Wires

d. Nickel

38. Chain surveying is used for

a. Small areas in open ground

b. Small areas with crowded details

c. Small areas with simple details

d. Large areas with simple details

39. For accurate work, in comparison to chain, the steel band is used because it

a. is light in weight

b. is easy to handle

c. is practically inextensible

d. all of above

40. The length of engineer’s chain is

a. 90ft

b. 100ft

c. 110ft

d. 120ft

41. It is more difficult to obtain good results while measuring horizontal distance by stepping

a. Up-hill

b. Down-hill

c. Centre

d. None of above

42. Normal tension is that pull which

a. Neutralizes the effect due to pull and sag

b. Makes sag correction zero

c. Makes pull correction zero

d. None of above