FCI Recruitment - Advanced Surveying 1000+ MCQ [Solved] PDF Download

1. The nearest star is so far away from the earth that the directions to it from two diametrically opposite points on the earth differs less than
A. 0.01 second
B. 0.001 second
C. 0.0001 second
D. None of these
Answer : C

2. For any star to be a circumpolar star, its
A. Declination must be 0°
B. Declination must be 90°
C. Distance from the pole must be less than the latitude of the observer
D. Hour angle must be 180°
Answer : C

3. A star may culminate at zenith if its declination is
A. Greater than the longitude of the place
B. Less than the latitude of the place
C. Equal to the latitude of the place
D. None of these
Answer : C

4. At the first point of Aeries, the sun moves
A. Northward
B. Southward
C. From south to north of the equator
D. From north to south of the equator
Answer : C

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

6. Homologous point is
A. Photo principal point
B. Ground principal point
C. Ground isocenter
D. All the above
Answer : D

7. International Date Line is located along
A. Standard meridian
B. Greenwich meridian
C. Equator
D. 180° longitude
Answer : D

8. The meridian of a place is
A. A great circle passing through the place and the poles
B. A great circle whose plane is perpendicular to the axis of rotation and it also passes through the place
C. A semi-circle which passes through the place and is terminated at the poles
D. An arc of the great circle which passes through the place and is perpendicular to the equator
Answer : C

9. The displacement of the pictured position of a point of h elevation on a vertical photograph taken with a camera of 30 cm focal length, from an altitude of 3000 m, is
A. 4.4 mm
B. 5.5 mm
C. 6.5 mm
D. 7.5 mm
Answer : D

10. The average eye base is assumed as
A. 58 mm
B. 60 mm
C. 62 mm
D. 64 mm
Answer : D

11. 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

12. The position of a heavenly body on the celestial sphere can be completely specified by
A. Its altitude and azimuth
B. Its declination and hour angle
C. Its declination and right ascension
D. All the above
Answer : D

13. The point on the photograph where bisector between the vertical line through optical centre of the camera lens and the plate perpendicular meets, is known as
A. Principal point
B. Isocenter
C. Plumb point
D. Perspective centre
Answer : B

14. 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

15. If v, t and f/H are the ground speed of the aircraft, the shutter speed of the camera and the scale of the photograph respectively, then the amount of image displacement
A. i = v. t. H/f
B. i = v. f/t. H
C. i = v. t. (f/H)
D. i = t. H/v. f
Answer : C

16. 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

17. The declination and right ascension of the sun becomes 23° 27' N and 90° respectively on
A. March 21
B. June 21
C. September 21
D. December 22
Answer : B

18. The great circle which passes through the zenith, nadir and the poles, is known as
A. Meridian
B. Vertical circle
C. Prime vertical
D. None of these
Answer : A

19. From the principal point the horizon point lies on the principal line at a distance of
A. f tan ?
B. f sin ?
C. f cot ?
D. f cos ?
Answer : A

20. If the distance between the projectors is altered by a movement along X-axis of one projector,
A. The length of the air base is increased
B. The scale of the model is altered
C. y-parallax is not affected
D. All the above
Answer : D

21. 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

22. The great circle along which the sun appears to trace on the celestial sphere with earth as centre during the year, is called
A. Equator
B. Celestial equator
C. Ecliptic
D. None of these
Answer : C

23. 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

24. 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

25. The point at which sun's declination changes from north to south, is known as
A. First point of Aeries
B. First point of Libra
C. Vernal Equinox
D. Both (b) and (d) of the above
Answer : D

26. Pick up the in-correct statement from the following:
A. Apparent solar time is measured from the lower transit of the true sun
B. Mean solar time is measured from the lower transit of the mean sun
C. Sidereal time is measured from the lower transit of the first point of Aries
D. Sidereal time is measured from the upper transit of the first point of Aries
Answer : D

27. Pick up the incorrect statement from the following. The angular distance of heavenly bodies on observer's meridian measured from the pole, is
A. Co-declination
B. Co-altitude
C. Co-latitude
D. Polar distance
Answer : A

28. 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

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 angular distance of a heavenly body from the equator, measured along its meridian, is called
A. Declination
B. Altitude
C. Zenith distance
D. Co-latitude
Answer : A

31. If ? is the observed altitude, the refraction correction in seconds, is
A. 58 cot ?
B. 58 tan ?
C. 58 sin ?
D. 58 cos ?
Answer : A

32. The flying height of the camera is 1, 000 m above mean ground level, the distance of the top of a building from a nadir point is 10 cm and the relief displacement of building is 7.2 mm. The height of the building, is
A. 52 m
B. 62 m
C. 72 m
D. 82 m
Answer : C

33. The First Point of Aeries
A. Is the point in the celestial sphere where zero meridian crosses the celestial equator
B. Is usually denoted by the Greek letter ?
C. Is located near the very conspicuous rectangle of stars in the constellations of Pegasus and Andromeda
D. All the above
Answer : D

34. Homologous points are
A. Opposite corners of a photograph
B. Nodal points of the camera lens
C. Corresponding points on the ground and photograph
D. Plumb points of stereo pair of photographs
Answer : C

35. At western elongation, the pole star moves
A. Eastward
B. Westward
C. Northward
D. Southward
Answer : D

36. The relation between the air base (B), photographic base (b), flying height (H) and the focal length (f) of a vertical photograph, is
A. B = bH/f
B. B =f/bH
C. B = b/fH
D. B = H/bf
Answer : A

37. The point where vertical line passing through the perspective centre intersects the plane of the photograph, is known as
A. Photo plumb point
B. Plumb point
C. Nadir point
D. Isocenter
Answer : A

38. The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as
A. Ground principal point
B. Ground plumb point
C. Iso-centre
D. Perspective centre
Answer : B

39. If 16 flight lines are run perpendicular to an area 30 km wide, their spacings on a photographical map on scale 1 : 50,000 , will be
A. 1 cm
B. 2 cm
C. 3 cm
D. 4 cm
Answer : D

40. Latitude of a place is the angular distance from
A. Greenwich to the place
B. Equator to the poles
C. Equator to the nearer pole
D. None of these
Answer : D

41. Pick up the incorrect statement from the following:
A. Latitudes north of the equator are taken as positive
B. Latitudes south of the equator are taken as negative
C. Longitudes east of Greenwich are taken as negative
D. Longitudes west of Greenwich are taken as positive
Answer : C

42. Pick up the correct statement from the following:
A. The vertical plane containing the zenith, the station of observation and the celestial pole is the observer's meridian plane
B. The angle between the direction of star in vertical plane and the direction of the star in horizontal plane is called the altitude of the star
C. The complement of the altitude of star is called the zenith distance of the star
D. All the above
Answer : D

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

44. If ? is the declination of the star and ? is the latitude of the observer, then the azimuth of the star at elongation is given by
A. sin z = sec ? . cos ?
B. cos z = sec ? . cos ?
C. tan z = sec ? . cos ?
D. None of these
Answer : A

45. The plane at right angle to the zenith-nadir line and passing through the centre of the earth, is called
A. Rational horizon
B. True horizon
C. Celestial horizon
D. All the above
Answer : D

46. The negative sign is assigned to
A. Reduction to mean sea level
B. Correction for horizontal alignment
C. Correction for slope
D. All the above
Answer : D

47. Stellar astronomy deals with
A. Plane surveying
B. Geodetic surveying
C. Star observations
D. Planet observations
Answer : C

48. 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

49. The angle between the observer's meridian and declination circle of a heavenly body, is known as
A. Hour angle
B. Azimuth
C. Right ascension
D. Declination
Answer : A

50. Pick up the correct statement from the following:
A. The star's movement is apparent due to the actual steady rotation of the earth about its axis
B. The stars move round in circular concentrated parts
C. The centre of the circular paths of stars is the celestial pole
D. All the above
Answer : D