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. Tacheometry is adopted where

a) too many curves at the borders exist

b) obstacles and undulations exist

c) limitations of space exist

d) none of the above

2 / 50

2. The function of the leveling head is

a) to attach the theodolite to the tripod

b) to provide a bearing for the outer hollow spindle

c) to provide a means of leveling the instrument

d) all of the above

3 / 50

3. Obstacle to ranging but not chaining is

a) river

b) building

c) hill

d) pond

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. The angle subtended by the long chord of a simple curve at its center is equal to

a) 2* deflection angle

b) 3* deflection angle

c) none of the above

d) deflection angle

6 / 50

6. Distomats is a type of

a) direct distance measuring instrument

b) optical distance measuring instrument

c) electromagnetic distance measuring instrument

d) none of the above

7 / 50

7. The length of an Engineer's chain is

a) 70 ft

b) 80 ft

c) 90 ft

d) 100 ft

8 / 50

8. Secular variation is an important factor because

a) the variation is due to seasonal changes

b) the magnitude of variation is of a high order, and the needle after coming to a standstill may move in the opposite direction

c) the needle will stop

d) the variation is less

9 / 50

9. 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

10 / 50

10. The shape of the vertical curve generally used is

a) circular

b) parabolic

c) spiral

d) elliptical

11 / 50

11. 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

12 / 50

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

a) datum point

b) benchmark

c) reduced level

d) reference point

13 / 50

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

a) the principle of least square

b) the law of errors

c) the principle of square errors

d) none of the above

14 / 50

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

a) small chord

b) short chord

c) long chord

d) sub chord

15 / 50

15. The line normal to the plumb line is known as

a) horizontal line

b) level line

c) datum line

d) vertical line

16 / 50

16. The difference between the two bearings of the last line as observed at the first and the last station of a traverse is known as

a) angular closing error

b) closing error in bearing

c) relative closing error

d) none of the above

17 / 50

17. Size of a theodolite is specified by

a) the diameter of the lower plate

b) the diameter of the upper plate

c) the length of the telescope

d) the diameter of the vertical circle

18 / 50

18. Two contour lines, having the same elevation

a) can't cross each other

b) can cross each other

c) can't unite together

d) can unite together

19 / 50

19. Choose the correct statement:

a) discrepancy in the difference between two measured values of the same quantity

b) residual error is the difference between a measured quantity and the most probable value

c) variance is the square of the standard deviation

d) all of the above

20 / 50

20. *The correction for refraction is given by

a) 0.0785d^2m

b) 0.0112 d^2m

c) 0.0673 d^2m

d) none of the above

21 / 50

21. 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

22 / 50

22. *Accuracy of 'fix' by two-point problem is

a) bad

b) good

c) not reliable

d) unique

23 / 50

23. *The two-peg method is used to check the parallelism between the

a) line of collimation and the axis of the bubble tube

b) line of collimation and the axis of the telescope

c) axis of the bubble tube and the vertical axis

d) all of the above

24 / 50

24. 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

25 / 50

25. The instrument used for centering the plane table accurately is:

a) spirit level

b) trough compass

c) plumbing fork

d) alidade

26 / 50

26. 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

27 / 50

27. Azimuth and altitude of a star

a) are constant

b) vary due to diurnal motion

c) azimuth is constant but altitude is not constant

d) none of the above

28 / 50

28. The sag correction is always

a) positive

b) negative

c) zero

d) none of the above

29 / 50

29. Contours are used to determine

a) intervisibility of points on a contour map

b) area of the drainage basin and capacity of the reservoir

c) quantities of earth work

d) all of the above

30 / 50

30. Offset angle taken in chain survey may be

a) 45°

b) 90°

c) 135°

d) any of the above

31 / 50

31. Theodolite traverse is plotted more accurately by

a) consecutive ordinate of each section

b) independent coordinates of each section

c) inclined angle & scaling off each traverse leg

d) the tangent method of plotting

32 / 50

32. An instrumental error in compass survey is because

a) inaccurate leveling

b) variation in declination

c) no counterweight provision to counteract dip

d) local attraction due to base current-carrying conductors

33 / 50

33. The observed reading on a leveling staff was 3.525 m. If the staff was 0.125m off from the original ground level, what should be the correct reading?

a) 3.65m

b) 3.525m

c) 3.4m

d) all of the above

34 / 50

34. The instrument used for measuring area on a contour map is

a) graph meter

b) planimeter

c) area meter

d) clinometers

35 / 50

35. 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

36 / 50

36. During chaining along a straight line, the leader of the survey party has three arrows, and while the follower has five arrows. The distance of the follower from the starting point will be

a) three chains

b) four chains

c) five chains

d) none of the above

37 / 50

37. Permanent adjustment is carried out to

a) set up of the level

b) establish a fixed relationship between its fundamental axes

c) focus the eyepiece

d) focus the object glass

38 / 50

38. 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

39 / 50

39. The method of tacheometry in which the stadia hair intercept is fixed is known as

a) movable hair method

b) fixed hair method

c) tangential hair method

d) substense hair method

40 / 50

40. The two-point problem and three-point problems are methods of:

a) orientation

b) resection

c) orientation and resection

d) none of the above

41 / 50

41. If the sights are vertical

a) the eye vane and object vane will be in the same line

b) the eye vane, object vane, and string will be parallel and in the same line

c) there will be no local attraction

d) none of the above

42 / 50

42. Find the length of curve if radius of curve

a) 60 m

b) 63 m

c) 10 m

d) 47 m

43 / 50

43. A leveling station is a point where:

a) the leveling machine is set up

b) both back sight and foresight are taken

c) the level staff is held

d) both A and B

44 / 50

44. Height of the instrument is equal to:

a) reduced level of the benchmark + foresight

b) reduced level of the benchmark + backsight

c) reduced level of the benchmark + intermediate sight

d) backsight + foresight

45 / 50

45. 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

46 / 50

46. In a tacheometer provided with an anallatic lens, the distance between the object glass and the vertical axis is 15 cm. The focal length of the objective is 15 cm, and that of the anallatic lens is 10 cm. Hence, the distance between the two lenses is

a) 17.5 cm

b) 25 cm

c) 30 cm

d) 40 cm

47 / 50

47. When a chain line encounters a river:

a) chaining is obstructed, but ranging is free

b) ranging is obstructed, chaining is free

c) both ranging and chaining are obstructed

d) both ranging and chaining are free

48 / 50

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

a) down hill

b) up hill

c) center

d) all of the above

49 / 50

49. The sensitivity of the bubble tube can be increased by

a) decreasing the radius of curvature of the tube

b) decreasing the length of the bubble

c) increasing the diameter of the tube

d) increasing the viscosity of the fluid

50 / 50

50. The contour interval depends upon

a) nature of the ground

b) scale of the map

c) purpose and extent of the survey

d) all of the above

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