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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Certificate: Yes
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1 / 50

1. In a prismatic compass,

a) the magnetic needle moves with the box

b) the magnetic needle and graduated circle do not move with the box

c) the line of sight does not move with the box

d) the graduated circle is fixed to the box, and the magnetic needle always remains in the N-S direction

2 / 50

2. In compass surveying

a) the direction and lengths of the survey line are measured by compass

b) the direction is measured by the compass

c) length is measured by the chain or tape

d) both (b) and (c) of above

3 / 50

3. An internal focusing type of telescope is focused by the movement of

a) convex lens

b) concave lens

c) plano-convex lens

d) objective glass

4 / 50

4. The two-point problem as compared to the three-point problem is:

a) more laborious

b) more accurate

c) quicker

d) all of the above

5 / 50

5. A 30 m long tape was standardized at a temperature of 30°C; at the time of measurement, the temperature recorded was 35°C. Then the correction for temperature per tape length is (coefficient of thermal expansion = 0.0001116/°C)

a) + 0.01674m

b) - 0.001674m

c) + 0.002500m

d) - 0.002500m

6 / 50

6. In a theodolite, the line passing through the intersection of the horizontal and vertical crosshairs and the optical center of the object glass and its continuation is known as

a) horizontal glass

b) line of collimation

c) line of sight

d) none of the above

7 / 50

7. The device used in computing the horizontal and vertical distances rapidly and conveniently is

a) stadia tables

b) stadia diagrams

c) stadia slide rule

d) none of the above

8 / 50

8. The angle that can be set by a French cross-staff is

a) 45°

b) 90°

c) 45° or 90°

d) none of the above

9 / 50

9. The purpose of triangulation in a chain survey is

a) finding the direction of points

b) establishment of accurate control points

c) transferring the control point

d) none of the above

10 / 50

10. The three-point problem is concerned with:

a) chain survey

b) plane table survey

c) compass survey

d) leveling

11 / 50

11. The representation of general topography of a very flat terrain is possible only

a) by drawing possible only

b) by drawing contours at a large interval

c) by giving spot levels at a large interval

d) by giving spot levels to salient features of close interval

12 / 50

12. The rise and fall method of leveling provides a complete check on

a) back sight

b) fore sight

c) intermediate sight

d) all of the above

13 / 50

13. Bowditch's rule is applied to

a) an open traverse for graphical adjustment

b) determine the effect of local attraction

c) a closed traverse for the adjustment of closing error

d) none of the above

14 / 50

14. The angle of intersection of a curve is the angle between

a) forward tangent and long chord

b) back tangent and long chord

c) back tangent and forward tangent

d) none of the above

15 / 50

15. The stadia hairs are not used in

a) movable hair method

b) fixed hair method

c) tangential hair method

d) substense hair method

16 / 50

16. If the sum of northing of a traverse exceeds the sum of southing by 2m and the sum of easting exceeds the sum of westing by 2m, the resulting closing error will be

a) √2 m

b) 2√2 m

c) 2m

d) 4m

17 / 50

17. If n observations are taken, the accidental errors are proportional to

a) n

b) n^2

c) √n

d) 1/n

18 / 50

18. 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

19 / 50

19. While measuring horizontal distance by stepping method we should follow

a) down hill

b) up hill

c) center

d) all of the above

20 / 50

20. Azimuth (direct angles) is an angle measured in

a) c.w. direction

b) a.c.w. direction

c) both

d) none of the above

21 / 50

21. Automatic level has advantages of

a) high precision and external influence

b) freedom from errors and external influence

c) comfortable and has a large range of application

d) all of the above

22 / 50

22. In the direct method of contouring, the process of locating points lying on a contour is known as

a) horizontal control

b) vertical control

c) ranging

d) none of the above

23 / 50

23. 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

24 / 50

24. The spacing of crosshairs in a stadia diaphragm of a tacheometer is 1.5mm, and the focal length of the objective glass is 30cm, the multiplying constant of the tacheometer is

a) 200

b) 100

c) 50

d) 25

25 / 50

25. If the included angle is greater than 180°, the deflection angle is

a) right-handed or positive

b) left-handed or negative

c) 90°

d) none of the above

26 / 50

26. The intercept of a staff is

a) minimum if the staff is held truly normal to the line of sight

b) maximum if the staff is held truly normal to the line of sight

c) decreases if the staff is tilted away from normal

d) increases if the staff is tilted away from normal

27 / 50

27. For a station to be free from local attraction

a) the fore and back bearings of the line should be measured accurately

b) the fore and back bearings of the line should differ by exactly 180°

c) the fore and back bearing of the line should be exactly the same but with opposite signs

d) none of the above

28 / 50

28. The contour lines merge or cross one another on the map in the case of

a) cave

b) overhang ground surfaces

c) both (a) and (b) of above

d) vertical surfaces

29 / 50

29. The smaller angle which a survey line makes with the true meridian is known as

a) altitude

b) azimuth

c) declination

d) dip

30 / 50

30. In the scale of a map is 1:25000, what does it mean:

a) 1 cm in the map equals 25000 cm in the field

b) 1 m in the map equals 250 km in the field

c) 1 cm in the map equals 25 m in the field

d) none of the above

31 / 50

31. The maximum permissible difference allowed while taking down the fore bearing and back bearing of a line is

a) 15'

b) 15"

c) no such limit

d) 1°

32 / 50

32. Find the R.F. of 1cm = 5m

a) 1/5

b) 1/50

c) 1/500

d) 1/5000

33 / 50

33. Instrumental error in leveling is an error due to

a) imperfect adjustment

b) sluggish bubble

c) movement of the objective slide

d) all of the above

34 / 50

34. Butt rods are used for measuring

a) baseline

b) tie line

c) offset distance

d) vertical distance

35 / 50

35. If W is the weight of the chain, L is the span, and P is the tension or pull, the sag correction for the chain will be

a) W^2L^2/24P^2

b) W^2L/24P

c) LW^2/24P^2

d) W^2L^2/24P

36 / 50

36. The perpendicular distance of the midpoint of the line from the reference meridian is known as

a) double meridian distance

b) meridian distance

c) departure of the line

d) latitude of the line

37 / 50

37. In profile leveling, staff readings on two neighboring pegs 20m apart are 1.200 and 1.00, respectively. Therefore, the proposed road has a

a) rising gradient of 1 in 100

b) falling gradient of 1 in 100

c) rising gradient of 1 in 20

d) falling gradient of 1 in 20

38 / 50

38. The strength of fix' is poor when:

a) the station is within the great triangle

b) the station is outside the great circle

c) the station is on the great circle

d) the station is within the great circle but outside the great triangle

39 / 50

39. If the station A and B are equally affected and in the different direction, then the difference between the forebearing and back bearing of a line AB should be

a) 180°

b) 200°

c) 220°

d) may any of the above

40 / 50

40. In a double-line river, contours are

a) stopped at the bank of the river

b) stopped at the edge of the river

c) drawn across the water

d) none of the above

41 / 50

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

a) conditional error

b) true error

c) residual error

d) safe error

42 / 50

42. 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

43 / 50

43. The angle of intersection of the horizon mirror and the index mirror of an optical square is

a) 30°

b) 45°

c) 105°

d) 120°

44 / 50

44. A river is an obstacle to

a) ranging but not chaining

b) chaining but not ranging

c) both chaining and ranging

d) none of the above

45 / 50

45. The strength of the fix of a plane table is:

a) accuracy in centering

b) accuracy in locating the position of the instrument station by taking observations to three stations

c) fixity of the table while solving the two-point problem

d) none of the above

46 / 50

46. If the image formed by the objective of the telescope is not in the plane of crosshairs, it is called

a) indistinct focusing

b) parallax

c) aberration

d) none of the above

47 / 50

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

a) 1495m

b) 1500m

c) 1505m

d) none of the above

48 / 50

48. If the needle is truly magnetic and is not sluggish

a) it will always be oscillating and never stop

b) when it stops, it will be exactly on the magnetic meridian

c) it will always be free from local attraction

d) all of the above

49 / 50

49. Level surface is parallel to

a) horizontal surface

b) vertical surface

c) datum surface

d) none of the above

50 / 50

50. The prismatic compass and the surveyor's compass respectively give

a) the whole circle bearing of a line & quadrantal bearing

b) both the quadrantal bearing of a line & the whole circle bearing of a line

c) both the whole circle bearing of a line

d) quadrantal & whole circle bearing of a line

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