Surveying Online Test - Paper 3 » Winning Questions

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

1. Natural error in leveling is caused due to

a) wind vibration

b) atmospheric refraction

c) temperature variation

d) all of the above

2 / 50

2. An invert is taken when the point is

a) having high elevation

b) below the line of sight

c) above the line of sight

d) below ground level

3 / 50

3. *The instrument used to measure horizontal and vertical angle is

a) planimeter

b) clinometer

c) ghat tracer

d) sextant

4 / 50

4. The "point of the curve" of a simple circular curve is

a) point of commencement

b) point of tangency

c) point of intersection

d) all of the above

5 / 50

5. Contour lines of different elevations can unite to form one line only in the case of

a) vertical cliff

b) a saddle

c) a watershed line

d) a hilltop

6 / 50

6. 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

7 / 50

7. Handles are connected to the link by

a) flexible joint

b) rigid joint

c) swivel joint

d) ball and socket joint

8 / 50

8. In leveling, the station where the back sight and foresight readings are taken is known as

a) change point

b) fixed point

c) movable point

d) none of the above

9 / 50

9. *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

10 / 50

10. The reduced level of the line of collimation is 50m, and the staff reading at the base of the pillar is 1.15 m. Find the reduced level of the base of the pillar

a) 48.85m

b) 51.15m

c) 50m

d) 52.30m

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. *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

13 / 50

13. *The method of leveling used to carry out the reconnaissance of an area is

a) check leveling

b) fly leveling

c) profile leveling

d) simple leveling

14 / 50

14. If S is the value of one smallest division on the main scale, v is the value of one smallest division on the vernier, and n is the number of divisions on the vernier, then the least count is given by

a) s/n

b) s/n-1

c) (s+1)/n

d) (c - 1)s/n

15 / 50

15. The trunion axis or transverse axis is

a) the axis about which the telescope can be rotated in a vertical plane

b) the axis about which the telescope can be rotated in a horizontal plane

c) also known as the line of collimation

d) none of the above

16 / 50

16. Compensator is used to make the line of sight perpendicular to the vertical axis in the case of

a) dumpy level

b) theodolite

c) all of the above

d) automatic level

17 / 50

17. 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

18 / 50

18. 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

19 / 50

19. 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

20 / 50

20. Area of triangle joining three corner points in comparison to the circle same three points:

a) always greater

b) always less

c) always equal

d) none of the above

21 / 50

21. The survey which is carried out to determine absolute locations and the direction of any line on the surface of the earth by making observations of heavenly bodies is called

a) hydrographic survey

b) astronomical survey

c) land survey

d) none of the above

22 / 50

22. 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

23 / 50

23. 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

24 / 50

24. The height of instrument method is

a) less tedious

b) more rapid

c) includes less calculation

d) all of the above

25 / 50

25. If the focal length of the objective glass is 20cm, and the distance from the object glass to the trunnion axis is 12cm, the additive constant is

a) 0.8m

b) 0.4m

c) 0.32m

d) 0.20m

26 / 50

26. *Total station is

a) total no. of stations in traverse

b) even/odd no. of stations in traverse

c) optical distance measurement instrument

d) electromagnetic distance measurement instrument

27 / 50

27. "A curve of varying radius introduced between two branches of a compound curve is called

a) transition curve

b) vertical curve

c) compound curve

d) reverse curve

28 / 50

28. 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

29 / 50

29. The best method of interpolation of contours in the direct method of contouring is by

a) computations

b) interpolation

c) estimation

d) none of the above

30 / 50

30. The magnetic bearing of a line is 60°, and the true bearing of the same line is 70°. Find the declination

a) 10°E

b) 10°W

c) 0°

d) none of the above

31 / 50

31. In the whole circle system, the bearings are measured

a) clockwise from the north point of the reference meridian towards the line of sight round the circle

b) anticlockwise from the north point

c) with the notations of cardinal points N, E, S & W

d) none of the above

32 / 50

32. The angular error of closure or summation error should not exceed (Where N is the number of stations or sides.)

a) 15√N

b) 153√N

c) √N

d) 3√N

33 / 50

33. The correction for curvature as applied to staff reading is

a) d² / 2R

b) -d² / 2R

c) d² / R

d) -d² / R

34 / 50

34. During leveling staff readings are taken 1.0, 0.8 & 0.6 from consecutive horizontal crosshairs, the staff intercept should be

a) 1.0

b) 0.8

c) 0.6

d) 0.4

35 / 50

35. The area of the earth's surface is taken into account only if the extent of the survey is more than

a) 60 sq km

b) 160 sq km

c) 260 sq km

d) 500 sq km

36 / 50

36. 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

37 / 50

37. 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

38 / 50

38. For a line AB

a) the forebearing and back bearing of line AB differ by 180°

b) the forebearing of AB and the back bearing of line BA differ by 180°

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

d) none of the above

39 / 50

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

a) contour line

b) contour interval

c) horizontal equivalent

d) contour gradient

40 / 50

40. In chain survey execution, this first step taken is

a) reconnaissance

b) marking station

c) running survey line

d) reference sketches

41 / 50

41. Cubic parabola is a type of

a) transition curve

b) vertical curve

c) compound curve

d) simple curve

42 / 50

42. The process of turning the telescope about the vertical axis in a horizontal plane is known as

a) reversing

b) transiting

c) plunging

d) swinging

43 / 50

43. In a constant level tube, the size of the bubble remains constant because the upper wall of the tube has

a) a relatively small radius

b) a relatively large radius

c) a flat surface

d) none of the above

44 / 50

44. The minimum horizontal distance between any two consecutive contours is known as

a) contour line

b) contour interval

c) horizontal equivalent

d) contour gradient

45 / 50

45. The main difference between theodolite and level is:

a) the power of the theodolite is always greater than the level

b) level is cheaper than theodolite

c) level can't measure horizontal angle, but theodolite can measure horizontal angle

d) in level, the telescope can't be revolved in a vertical plane about the horizontal axis of the telescope

46 / 50

46. 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

47 / 50

47. The absence of chromatic aberration in a telescope is known as

a) achromation

b) crimination

c) aplanation

d) definition

48 / 50

48. If the bearing of AB is N 30° W and the bearing of BC is N 40° E, then find the angle < ABC

a) 10°

b) 70°

c) 110°

d) 170°

49 / 50

49. An operation for determining the relative elevations of different points on the surface of the earth is known as

a) leveling

b) simple leveling

c) differential leveling

d) longitudinal leveling

50 / 50

50. A building is an obstacle to

a) chaining but not ranging

b) ranging but not chaining

c) both chaining and ranging

d) none of the above

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