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%
Randomization: Yes
Certificate: Yes
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1 / 50

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

a) horizontal line

b) level line

c) datum line

d) vertical line

2 / 50

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

a) n

b) n^2

c) √n

d) 1/n

3 / 50

3. 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

4 / 50

4. Prolongation of a chain line across an obstruction in chain surveying is done by

a) drawing perpendiculars with a chain

b) making angular observations

c) solution of triangles

d) all the above methods

5 / 50

5. 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

6 / 50

6. Handles of chains are made of

a) nickel

b) steel

c) copper

d) brass

7 / 50

7. 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

8 / 50

8. The sensitivity of the bubble tube expressed in terms of the angular value of one division of the bubble is given by

a) S/D radians

b) D/S radians

c) S/D seconds

d) none of the above

9 / 50

9. 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

10 / 50

10. The types of errors that are of a cumulative nature and can be corrected are known as

a) permissible error

b) residual error

c) expected error

d) systematic error

11 / 50

11. The shape of the vertical curve generally used is

a) circular

b) parabolic

c) spiral

d) elliptical

12 / 50

12. A 20 cm theodolite means

a) the length of the theodolite is 20 cm

b) the diameter of the lower plate is 20 cm

c) the diameter of the upper plate is 20 cm

d) the total height of the theodolite plate is 20 cm

13 / 50

13. The place where the reading is taken is known as

a) level

b) fixed point

c) station

d) none of the above

14 / 50

14. The maximum allowable limit up to which a measurement may vary from the true value is known as

a) permissible error

b) residual error

c) expected error

d) systematic error

15 / 50

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

a) graph meter

b) planimeter

c) area meter

d) clinometers

16 / 50

16. The optical square is based on the principle of

a) reflection

b) refraction

c) double reflection

d) double refraction

17 / 50

17. The three-point problem is concerned with:

a) chain survey

b) plane table survey

c) compass survey

d) leveling

18 / 50

18. If the included angle is less than 180°, the deflection angle is

a) right-handed or positive

b) left-handed or negative

c) 90°

d) none of the above

19 / 50

19. The number of horizontal cross wires in a stadia diaphragm is

a) 1

b) 2

c) 3

d) 4

20 / 50

20. Parallax may be eliminated by

a) focusing the eyepiece

b) focusing the objective

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

d) none of the above

21 / 50

21. 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

22 / 50

22. 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

23 / 50

23. Positive error is caused if

a) the length of the chain is shorter than the standard

b) the slope and sag corrections are not applied

c) the measurements are made along the incorrectly aligned line

d) all of the above

24 / 50

24. The Normal chord of a curve should be

a) less than sub chord

b) equal to sub chord

c) greater than sub chord

d) all of the above

25 / 50

25. The bearing of the traverse line is calculated by

a) included angle method

b) deflection angle method

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

d) none of the above

26 / 50

26. 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

27 / 50

27. The inclination of the needle to the horizontal towards the pole is called

a) dip

b) declination

c) azimuth

d) bearing

28 / 50

28. Horizontal equivalent of a uniform slope must be

a) equal

b) unequal

c) contour interval

d) none of the above

29 / 50

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

a) transition curve

b) vertical curve

c) compound curve

d) reverse curve

30 / 50

30. If the needle of the compass is sluggish the type of error will be

a) instrumental error

b) personal error

c) natural error

d) none of the above

31 / 50

31. 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

32 / 50

32. 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°

33 / 50

33. The Q.B of the lines are given by...., ...., & ..... If W.C.B. of the lines are 0°, 135°, 270° respectively

a) S, S45°E, E90°

b) N, N45°W, E90°

c) N, S45°E, E90°

d) N, S45°E, W90°

34 / 50

34. 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

35 / 50

35. 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

36 / 50

36. Natural error in leveling is caused due to

a) wind vibration

b) atmospheric refraction

c) temperature variation

d) all of the above

37 / 50

37. 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

38 / 50

38. 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

39 / 50

39. 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

40 / 50

40. 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

41 / 50

41. 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

42 / 50

42. Diurnal variation depends upon

a) locality

b) time

c) seasons

d) all of the above

43 / 50

43. Staff intercept means

a) top reading

b) bottom reading

c) middle reading

d) the difference between top and bottom reading

44 / 50

44. The location of the contour gradient for a highway is best set out from

a) ridge down the hill

b) saddle down the hill

c) bottom to the ridge

d) bottom to the saddle

45 / 50

45. Limiting the length of offset depends upon

a) accuracy desired

b) scale of plotting

c) nature of the ground

d) all of the above

46 / 50

46. The amount of correction due to local attraction at a place

a) is constant for all bearings

b) varies with the bearing

c) changes from time to time

d) sometimes additive and sometimes subtractive

47 / 50

47. Find the RL of the collimation line. If the RL of BM is 100 m & BS staff reading is 5.35 m

a) 105.35m

b) 94.65m

c) 100m

d) 5.35m

48 / 50

48. 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

49 / 50

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

a) c.w. direction

b) a.c.w. direction

c) both

d) none of the above

50 / 50

50. The magnetic north is indicated by

a) magnetic compass

b) prismatic compass

c) theodolite

d) leveling

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