1000+ Advanced Surveying Multiple Choice Question Answer [Solved]

1. The method of surveying by triangulation was first introduced by the Dutchman Snell in
A. 1600
B. 1615
C. 1630
D. 1650
Answer : B

2. The scale of a vertical photograph of focal length f taken from height of H metres above M.S.L., at a point of reduced level h, is
A. f/H
B. f/(H + h)
C. f/(H - h)
D. (H - h)/f
Answer : C

3. Limiting gradient for locating the base line on evenly-sloping ground, is
A. 1 in 12
B. 1 in 10
C. 1 in 8
D. 1 in 6
Answer : A

4. The zenith is the point on the celestial sphere
A. East of observer
B. West of observer
C. North of observer
D. South of observer
Answer : D

5. Latitude of the observer's position is equal to altitude of
A. North pole
B. Pole star
C. Celestial pole
D. All the above
Answer : C

6. When a star is between the pole and the horizon, the relationship between latitude (?), zenith distance (z) and declination ?, is
A. ? = z + ?
B. ? = ? - z
C. ? = 180° - (z + ?)
D. ? = (z + ?) - 180°
Answer : C

7. Pick up the correct statement from the following:
A. One degree of longitude has greatest value at the equator
B. One degree of longitude has greatest value at the poles
C. One degree of longitude has the same value everywhere
D. One degree of latitude decreases from the equator to the poles
Answer : A

8. The scale of a tilted photograph of focal length f, taken from an altitude H, along the plate parallel through plumb point, is
A. f/H sec ?
B. f sec ?/H
C. f/H
D. f/H cos ½?
Answer : B

9. An aerial photograph may be assumed as
A. Parallel projection
B. Orthogonal projection
C. Central projection
D. None of these
Answer : C

10. The shortest distance between two places measured along the surface of the earth, is
A. Length of the equator between their longitudes
B. Length of the parallel between their longitudes
C. Length of the arc of the great circle passing through them
D. None of these
Answer : C

11. The solar tidal force divided by lunar tidal force is
A. 1/3
B. 1/2
C. 3/4
D. 5/4
Answer : B

12. H is the flying height above mean ground level and f is the principal distance of a vertical photograph. The mean scale of the photographs is
A. H. f
B. H/f
C. f/H
D. H + f
Answer : C

13. The point on the celestial sphere vertically below the observer's position, is called
A. Zenith
B. Celestial point
C. Nadir
D. Pole
Answer : C

14. The latitude of a place was obtained by subtracting the declination of a star from its zenith distance, the observed star was between
A. Horizon and equator
B. Zenith and pole
C. Equator and zenith
D. Pole and horizon
Answer : A

15. Parallax bar measures
A. Parallax
B. Height
C. Parallax difference
D. Height difference
Answer : C

16. Pick up the correct statement from the following:
A. Ursa Minor's remains always north of pole star
B. Polar star remains always north of Polaris
C. Polaris remains always north of Ursa Minor's
D. Ursa Minor's pole star and Polaris are the names of the same star
Answer : D

17. The value of geo-centric parallax to be added to the observed altitude of sun is
A. 9 cos ?
B. 9 sin ?
C. 9 tan ?
D. 9 cot ?
Answer : A

18. Triangulation surveys are carried out for providing
A. Planimetric control
B. Height control
C. Both planimetric and height control
D. None of these
Answer : C

19. Polaris is usually observed for the determination of the latitude when it is
A. At culmination
B. At elongation
C. Neither at culmination nor at elongation
D. Either at culmination or at elongation
Answer : A

20. The angle between the direction of star and the direction of earth's axis of rotation is called
A. Co-declination
B. Co-latitude
C. Declination
D. Latitude
Answer : A

21. If f is the focal length of the camera lens and ? is the angle of tilt, the distance of the plumb point from the principal point will be
A. f sin ?
B. f cos ?
C. f tan ?
D. f sec ?
Answer : C

22. The longitudes of two places at latitude 60° N are 93° E and 97° W. Their departure is
A. 5100 nautical miles
B. 5700 nautical miles
C. 120 nautical miles
D. 500 nautical miles
Answer : B

24. The altitude of a heavenly body is its angular distance, measured on the vertical circle passing through the body, above
A. Equator
B. Horizon
C. Pole
D. None of these
Answer : B

25. Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel
A. 24 %
B. 36 %
C. 40 %
D. 60 %
Answer : B

26. In a spherical triangle ABC right angled at C, sin b equals to
A. sin c sin B
B. cos c cos B
C. tan c tan B
D. sin c cos B
Answer : A

27. A nautical mile is
A. One minute arc of the great circle passing through two points
B. One minute arc of the longitude
C. 1855.109 m
D. All the above
Answer : D

28. Pick up the correct statement from the following:
A. Aerial photographs may be either vertical or oblique
B. Vertical photographs are taken with the axis of camera pointing vertically downward
C. Vertical photographs are used for most accurate maps
D. All the above
Answer : D

29. The parallax of a point on the photograph is due to
A. Ground elevation
B. Flying height
C. Length of air base
D. All the above
Answer : D

30. The most convenient co-ordinate system for specifying the relative positions of heavenly bodies on the celestial sphere, is
A. Altitude and azimuth system
B. Declination and hour angle system
C. Declination and right ascension system
D. Declination and altitude system
Answer : C

31. The position of the sun when its north declination is maximum is known as
A. Vernal equinox
B. Autumnal equinox
C. Summer solstice
D. Winter solstice
Answer : C

32. The latitude of the observer's position, is
A. Elevation of the elevated pole
B. Declination of the observer's zenith
C. Angular distance along the observer's meridian between equator and the observer
D. All the above
Answer : D

33. The want of correspondence in stereo-photographs
A. Is a good property
B. Is a function of tilt
C. Is not affected by the change of flying height between photographs
D. Is minimum when ? is 3°
Answer : B

34. If ? is the declination of the Polaris and ? is the latitude of the place, the azimuth of the Polaris, is
A. cos ?/cos ?
B. cos (90° - ?)/cos (90° - ?)
C. sin (90° - ?)/sin (90° - ?)
D. tan (90° + ?)/tan (90° + ?)
Answer : A

35. Accidental errors
A. Do not follow any definite mathematical law
B. Cannot be removed by applying corrections to the observed values
C. Are generally small
D. All the above
Answer : D

36. Circumpolar stars
A. Rotate round the North Pole
B. Rotate round the celestial pole
C. Remain always above the horizon
D. Are seldom seen near the pole star
Answer : C

37. Assuming human normal vision distance 25 cm, smallest measurable angle 20, and intraocular distance 6.5 cm, the smallest depth to be discerned is
A. 0.1 mm
B. 0.5 mm
C. 1.00 mm
D. 1.1 mm
Answer : A

38. Pick up the correct statement from the following:
A. Sidereal time at any instant is equal to the hour angle of the first point of Aries
B. Local sidereal time of any place is equal to the right ascension of its meridian
C. Sidereal time is equal to the right ascension of a star at its upper transit
D. All the above
Answer : D

39. The following points form a pair of homologous points:
A. Photo principal point and ground principal point
B. Photo isocenter and ground isocenter
C. Photo plumb point and ground plumb point
D. All the above
Answer : D

40. Pick up the in-correct statement from the following:
A. Correction for refraction is always negative
B. Correction for parallax is always positive
C. Correction for semi-diameter is always negative
D. Correction for dip is always negative
Answer : C

41. Sidereal day
A. Is the period of time taken by the earth in making a complete rotation with reference to stars
B. Is slightly shorter than an ordinary solar day
C. Is divided into the conventional hours, minutes and seconds
D. All the above
Answer : D

42. The length of a parallel of ? latitude between two meridians is equal to difference in longitudes multiplied by
A. sin ?
B. cos ?
C. tan ?
D. cot ?
Answer : B

43. The difference of parallax for a given difference in elevation is independent of
A. Focal length of the camera
B. Overall size of the photo graphs
C. Percentage of overlap
D. All the above
Answer : D