1000+ Advanced Surveying MCQ for LSAT [Solved]

1. 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

2. The station pointer is generally used in
A. Triangulation surveying
B. Astronomical surveying
C. Hydrographical surveying
D. Photogrammetric surveying
Answer : C

3. The stereo plotting instruments are generally manufactured on the principle of
A. Optical projection
B. Optical mechanism projection
C. Mechanical projection
D. All the above
Answer : D

4. Right ascension of a heavenly body is its equatorial angular distance measured
A. Westward from the first point of Libra
B. Eastward from the first point of Aeries
C. Westward from the first point of Aeries
D. Eastward from the first point of Libra
Answer : B

5. 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

6. The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is
A. 1 : 10,000
B. 1 : 15,000
C. 1 : 20,000
D. 1 : 30,000
Answer : C

7. Rotation of the camera at exposure about horizontal axis normal to the line of flight, is known as
A. Swing
B. Tilt
C. Tip
D. None of these
Answer : C

8. Pick up the correct statement from the following:
A. The plane passing through the perspective centre of a stereo pair and a ground point, is known as basal plane
B. Each pair of image points on stereo pair have their own basal plane
C. Relative orientation means reconstructing the basal plane
D. All the above
Answer : D

9. The coverage is least if photography is
A. High oblique
B. Low oblique
C. Vertical
D. None of these
Answer : C

10. In observations of equal precision, the most probable values of the observed quantities are those that render the sum of the squares of the residual errors a minimum, is the fundamental principle of
A. Gauss' Mid Latitude formula
B. D'Alembert's method
C. Legendre's method
D. Least square method
Answer : D

11. The correction applied to the measured base of length L is
A. Tension = (P - Ps)L/AE
B. Sag = L³w²/24P² where w is the weight of tape/m
C. Slope = (h²/2L) + (h⁴/8L³) where h is height difference of end supports
D. All the above
Answer : D

12. The Polaris remains below horizon at
A. 10° N
B. 50° N Latitude
C. Equator
D. 5° S latitude
Answer : D

13. 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

14. The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The declination of the star, is
A. 80°
B. 70°
C. 60°
D. 50°
Answer : C

15. The station where observations are not made, but the angles at the station are used in triangulation series, is known as
A. Satellite station
B. Subsidiary station
C. Pivot station
D. Main station
Answer : C

16. The height displacement on a vertical photograph
A. Increases as the horizontal distance increases from the principal point
B. Increases as the ground elevation increases
C. Decreases as the flying height increases
D. All the above
Answer : D

17. ? and ? are the angles subtended by a point of elevation h at their air station with respective plumb points. Photo scale and focal length of the lens being S and f respectively. Parallax displacement of the point due to relief, is
A. h tan ?/S
B. h tan ?/S
C. h (tan ? + tan ?)/S
D. h (tan ? - tan ?)/S
Answer : C

18. 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

19. Pick up the correct statement from the following:
A. The horizontal direction of the pole is called astronomical north
B. The angle between the direction of true north and the direction of a survey line is called astronomical bearing
C. The astronomical bearing is generally called azimuth
D. All the above
Answer : D

20. The product of the distances of plumb point and horizon point of a vertical photograph from its principal point, is
A. f²
B. 2f²
C. 3f²
D. ½f
Answer : A

21. 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

22. 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

23. 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

24. The relief displacement of a building 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is
A. 500 m
B. 1000 m
C. 1500 m
D. 2000 m
Answer : B

25. 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

26. 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

27. If the altitudes of a star at its upper and lower transits are 60° 30' and 19° 30' respectively, the latitude of the place, is
A. 30°
B. 35°
C. 40°
D. 45°
Answer : C

28. According to Napier's Rules of circular parts for a right angled triangle, sine of middle part equals the product of
A. Tangents of two adjacent parts
B. Sines of two adjacent parts
C. Cosines of two adjacent parts
D. Both (a) and (b) 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. 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

31. Triangulation surveys are carried out for locating
A. Control points for surveys of large areas
B. Control points for photogrammetric surveys
C. Engineering works, i.e. terminal points of long tunnels, bridge abutments, etc.
D. All the above
Answer : D

32. Pick up the correct statement from the following:
A. North end of the polar axis is known as North Pole
B. South end of the polar axis is known as South Pole
C. Point where polar axis when produced northward intersects the celestial sphere, is known as north celestial pole
D. All the above
Answer : D

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

34. 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

35. 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

36. For adjusting a quadrilateral whose both the diagonals are observed, the equations of conditions involved, are
A. Two angle equations and two side equations
B. One angle equation and three side equations
C. Three angle equations and one side equation
D. None of these
Answer : C

37. The slotted template method
A. Is prepared, by graphical method
B. Is suitable for large areas with less control
C. Is rapid and accurate
D. All the above
Answer : D

38. The circle in which a plane tangent to the earth's surface at the point of observation, intersects the celestial sphere, is called
A. Visible horizon
B. Sensible horizon
C. Celestial horizon
D. True horizon
Answer : B

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

40. Rotation of the camera at exposure about its vertical axis, is known as
A. Swing
B. Tilt
C. Tip
D. None of these
Answer : A

41. The necessary geometrical condition for triangulation adjustment is:
A. The sum of the angles around a station should be360°
B. The sum of the three angles of a plane triangle should be 180°
C. The sum of the eight angles of a braced quadrilateral should be 360°
D. All the above
Answer : D

42. Pick up the incorrect statement from the following. High oblique photographs
A. May have tilt up to 30°
B. May include the image of the horizon
C. May not include the image of the horizon
D. None of these
Answer : D

43. The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The latitude of the place, is
A. 80°
B. 70°
C. 60°
D. 40°
Answer : D

44. 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

45. The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as
A. Satellite station
B. Eccentric station
C. False station
D. Pivot station
Answer : D

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

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

48. 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

49. For plane ground the scale of a vertical photograph will be same as that of a tiled photograph along the photo parallel through
A. Isocenter
B. Plumb point
C. Principal point
D. None of these
Answer : A

50. 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