Surveying Online Test - Paper 3 » Winning Questions

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Vikash chaudhary

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Total Questions: 50
Time Allotted: 50 minutes
Passing Score: 70%
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1 / 50

1. The closing error is given by

a) √(ΣL^2+ΣD^2)

b) √((ΣL+ΣD))^2

c) ΣL^2 +ΣD^2

d) none of the above

2 / 50

2. The chord of curve less than peg interval is known as

a) small chord

b) short chord

c) long chord

d) sub chord

3 / 50

3. Offsets are

a) chain lines out of alignment

b) small measurements from the chain line

c) measurements taken in chain surveying

d) none of the above

4 / 50

4. When several contours coincide, it indicates

a) an overhanging

b) a saddle

c) a valley

d) a vertical cliff

5 / 50

5. In a closed traverse,

a) the difference between the fore-bearing and back bearing should be 90°

b) the sum of included angles should be (2N-4) right angles, where N is the number of sides

c) the sum of included angles should be (2N-1), where N is the number of sides

d) none of the above

6 / 50

6. A discrepancy is the difference between

a) true value and error

b) measured value and actual value

c) two measured values of the same quantity

d) none of the above

7 / 50

7. Find the length of curve if R=500 m, Intersection angle= 120°

a) 500m

b) 525m

c) 550m

d) 575m

8 / 50

8. The error eliminated by taking the mean of both face observations is

a) error due to eccentricity of verniers

b) error due to imperfect adjustment of levels

c) error due to the line of collimation not being perpendicular to the horizontal axis

d) all of the above

9 / 50

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

a) main stations

b) subsidiary stations

c) tie stations

d) none of the above

10 / 50

10. The errors due to bad ranging are

a) cumulative positive

b) cumulative negative

c) compensating

d) cumulative positive or negative

11 / 50

11. The imaginary line passing through the intersection of crosshairs and the optical center of the object is known as:

a) line of sight

b) line of collimation

c) line of axis

d) axis of the telescope

12 / 50

12. If the formation level is less than the ground level, the difference between them at any point will give the

a) height of embankment

b) depth of cutting

c) proposed gradient

d) none of the above

13 / 50

13. A relatively fixed point of known elevation above the datum is called

a) datum point

b) benchmark

c) reduced level

d) reference point

14 / 50

14. Fifteen readings were recorded in a level field book. If the instrument was shifted after the 5th, 10th, and 15th readings, then the foresight readings are

a) 1st, 3rd, and 7th readings

b) 5th, 10th, and 15th readings

c) 2nd and 6th reading

d) 3rd, 4th, 5th, 7th, 8th, 9th, and 10th reading

15 / 50

15. The longest chain line passing through the center of the area is known as

a) base line

b) tie line

c) check line

d) none of the above

16 / 50

16. The central angle subtended by an arc of 30m of the curve

a) 573/R

b) 1146/R

c) 1718.9/R

d) 3435/R

17 / 50

17. Staff intercept means

a) top reading

b) bottom reading

c) middle reading

d) the difference between top and bottom reading

18 / 50

18. *The radius of curvature of the arc of the bubble tube is generally kept

a) 10 m

b) 25 m

c) 50 m

d) 100 m

19 / 50

19. Which one of the following is not a personal error?

a) the table not being perfectly leveled

b) the table not being perfectly central

c) the table not being perfectly clamped

d) none of the above

20 / 50

20. The surface of zero elevation around the earth, which is slightly irregular and curved, is known as

a) mean sea level

b) geoid surface

c) level surface

d) horizontal surface

21 / 50

21. The dip of the needle

a) is constant

b) varies from place to place & is zero at the equator and maximum at the poles

c) is zero at the equators and poles

d) none of the above

22 / 50

22. The whole circle bearing 338°42" converted into quadrantal form is given as

a) N 21°18' W

b) S 21°18' E

c) W 21°18' N

d) none of the above

23 / 50

23. A series of closely spaced contour lines represent a

a) steep slope

b) uniform slope

c) horizontal surface

d) gentle slope

24 / 50

24. With the help of leveling, we measure

a) horizontal angle

b) vertical angle

c) deflection angle

d) none of the above

25 / 50

25. The order of accuracy of the elevation of points obtained from a contour map is equal to

a) contour interval

b) 1/2 x control interval

c) 1/4 x contour interval

d) none of the above

26 / 50

26. The permissible limits of error in chaining for measurement on rough or hilly ground are

a) 1:2000

b) 1:1000

c) 1:500

d) 1:250

27 / 50

27. When the whole circle bearing of two lines AB and AC are 115° and 41° respectively, then the included angle BAC will be:

a) 74°

b) 45°

c) 115°

d) 156°

28 / 50

28. The designation of scale recommended by IS: 1491-1959 is

a) A to C

b) A to D

c) A to E

d) A to F

29 / 50

29. A 30 m long chain when tested should not show errors exceeding

a) ±2mm per metre and ±5mm overall length

b) ±3mm per metre and ±8mm overall length

c) ±2mm per metre and ±8mm overall length

d) ±5mm per metre and ±2mm overall length

30 / 50

30. A level line is a

a) line parallel to the mean spherical surface of the earth

b) line normal to the plumb line at all points

c) horizontal line

d) both (a) and (b) of the above

31 / 50

31. Find the contour interval for the map, 1: 25000 in IS & FPS

a) 4m & 20.70ft

b) 6m & 19.70ft

c) 3m & 20.70ft

d) 5m & 19.70ft

32 / 50

32. Butt rods are used for measuring

a) baseline

b) tie line

c) offset distance

d) vertical distance

33 / 50

33. The vertical distance between any two consecutive contours is known as

a) contour line

b) contour interval

c) horizontal equivalent

d) contour gradient

34 / 50

34. Right face and left face readings are taken to

a) get the correct reading

b) eliminate error of trunnion axis not being exactly horizontal

c) eliminate error in the vertical axis

d) eliminate error in the line of collimation

35 / 50

35. 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 the above

36 / 50

36. *For the construction of highway/railway

a) longitudinal sections are required

b) cross sections are required

c) both longitudinal and cross sections are required

d) none of these

37 / 50

37. The scale used to measure and to set out the angles is

a) diagonal scale

b) comparative scale

c) vernier scale

d) scale of chords

38 / 50

38. 'SPIRE TEST' is used in the permanent adjustment of theodolite for

a) adjusting the plate levels

b) adjusting the line of sight

c) adjusting the vertical axis

d) adjustment of the horizontal axis

39 / 50

39. Dumpy level is used when

a) the number of observations to be taken is large from one level position

b) the number of observations to be taken is small from one level position

c) fly leveling is to be done

d) none of the above

40 / 50

40. Which of the following terms is not associated with leveling:

a) foresight

b) bench mark

c) bearing

d) change point

41 / 50

41. Tellurometer uses

a) light waves

b) radio waves

c) infra waves

d) all of the above

42 / 50

42. In survey works, declination varies from time to time and place to place. The main important variation is

a) secular variation

b) annual variation

c) diurnal variation

d) irregular variation

43 / 50

43. An example of a level surface is

a) surface of earth

b) surface of sea

c) surface of reservoir

d) surface of a still lake

44 / 50

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

a) perpendicular offset

b) optical square

c) prism square

d) oblique offsets

45 / 50

45. Find the length of curve if the radius of the curve is 50 m, and the angle of deflection is 60°

a) 52m

b) 104m

c) 34m

d) none of the above

46 / 50

46. The limiting length of an offset does not depend upon

a) accuracy of the work

b) method of setting out perpendiculars

c) scale of plotting

d) indefinite features to be surveyed

47 / 50

47. The survey stations set up during traversing with the compass should be such that

a) they are visible from each other

b) chaining between them is easy

c) the line joining them is near the objects to be located

d) they are as long as possible

48 / 50

48. The elevation (BM) of point A is 100 m. Backsight reading at A is 20, and foresight reading at B is 30 m. Find the RL of point B

a) 100m

b) 90m

c) 120m

d) 9130m

49 / 50

49. The fix of the table is good when:

a) the station is within the great triangle

b) the middle station is farther than the other two stations

c) the angle subtended between two stations is not very small

d) all of the above

50 / 50

50. Overturning of vehicles on a curve can be avoided by using

a) transition curve

b) vertical curve

c) compound curve

d) reverse curve

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