Advanced Surveying 1000+ MCQ with answer for RRB NTPC
Thursday 9th of March 2023
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1. 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
A. Focal length of the camera
B. Overall size of the photo graphs
C. Percentage of overlap
D. All the above
Answer : D
2. 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
A. 0.1 mm
B. 0.5 mm
C. 1.00 mm
D. 1.1 mm
Answer : A
3. 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
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
4. 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
A. 52 m
B. 62 m
C. 72 m
D. 82 m
Answer : C
5. The parallax equation ?p = Bm?h/H - h is applicable to entire overlap of the photographs only if parallax is measured
A. Normal to base line
B. Parallel to base line
C. Both (a) and (b)
D. Neither (a) nor (b)
Answer : B
A. Normal to base line
B. Parallel to base line
C. Both (a) and (b)
D. Neither (a) nor (b)
Answer : B
6. Places having same latitude
A. Lie on the parallel of the latitude
B. Are equidistant from the nearer pole
C. Are equidistant from both the poles
D. All the above
Answer : D
A. Lie on the parallel of the latitude
B. Are equidistant from the nearer pole
C. Are equidistant from both the poles
D. All the above
Answer : D
7. 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
A. 58 cot ?
B. 58 tan ?
C. 58 sin ?
D. 58 cos ?
Answer : A
8. Homologous point is
A. Photo principal point
B. Ground principal point
C. Ground isocenter
D. All the above
Answer : D
A. Photo principal point
B. Ground principal point
C. Ground isocenter
D. All the above
Answer : D
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
A. 4.4 mm
B. 5.5 mm
C. 6.5 mm
D. 7.5 mm
Answer : D
10. If S is the sum of three angles of a spherical triangle, the spherical excess equals
A. S - 90°
B. S - 180°
C. S - 270°
D. S - 360°
Answer : B
A. S - 90°
B. S - 180°
C. S - 270°
D. S - 360°
Answer : B
11. 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
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
12. The time interval between successive transits of the moon, is
A. 24 hours 10 minutes
B. 20 hours 25 minutes
C. 24 hours 50 minutes
D. 23 hours 50 minutes
Answer : C
A. 24 hours 10 minutes
B. 20 hours 25 minutes
C. 24 hours 50 minutes
D. 23 hours 50 minutes
Answer : C
13. Pick up the incorrect statement from the following. In a spherical triangle
A. Every angle is less than two right angles
B. Sum of the three angles is equal to two right angles
C. Sum of the three angles less than six right angles and greater than two right angles
D. Sum of any two sides is greater than the third
Answer : B
A. Every angle is less than two right angles
B. Sum of the three angles is equal to two right angles
C. Sum of the three angles less than six right angles and greater than two right angles
D. Sum of any two sides is greater than the third
Answer : B
14. 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
A. f2
B. 2f2
C. 3f2
D. ½f
Answer : A
15. 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
A. Greenwich to the place
B. Equator to the poles
C. Equator to the nearer pole
D. None of these
Answer : D
16. 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
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
17. 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
A. Satellite station
B. Eccentric station
C. False station
D. Pivot station
Answer : D
18. 23 cm × 23 cm photographs are taken from a flying height with a camera of focal length of 3600 m and 15.23 cm respectively. A parallax difference of 0.01 mm represents
A. 1 m
B. 2 m
C. 4 m
D. 8 m
Answer : A
A. 1 m
B. 2 m
C. 4 m
D. 8 m
Answer : A
19. 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
A. 9 cos ?
B. 9 sin ?
C. 9 tan ?
D. 9 cot ?
Answer : A
20. 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
A. f/H
B. f/(H + h)
C. f/(H - h)
D. (H - h)/f
Answer : C
21. The moon rotates round the earth once in every
A. 29 days
B. 29.35 days
C. 29.53 days
D. 30 days
Answer : B
A. 29 days
B. 29.35 days
C. 29.53 days
D. 30 days
Answer : B
22. If ? and ? be the latitude of an observer and declination of a heavenly body respectively, the upper culmination of the body will be south of zenith if its zenith distance, is
A. ? - ?
B. ? - ?
C. ? + ?
D. ½ (? - ?)
Answer : B
A. ? - ?
B. ? - ?
C. ? + ?
D. ½ (? - ?)
Answer : B
23. 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
A. cos ?/cos ?
B. cos (90° - ?)/cos (90° - ?)
C. sin (90° - ?)/sin (90° - ?)
D. tan (90° + ?)/tan (90° + ?)
Answer : A
24. 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
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
25. Systematic errors
A. Always follow some definite mathematical law
B. Can be removed by applying corrections to the observed values
C. Are also known as cumulative errors
D. All the above
Answer : D
A. Always follow some definite mathematical law
B. Can be removed by applying corrections to the observed values
C. Are also known as cumulative errors
D. All the above
Answer : D
26. Longitudes are measured from 0° to
A. 180° eastward
B. 180° westward
C. 180° east or westward
D. 360° eastward
Answer : C
A. 180° eastward
B. 180° westward
C. 180° east or westward
D. 360° eastward
Answer : C
27. Pick up the correct statement from the following:
A. The sun's right ascension increases for 0 h to 24 h when it returns to the First point of Aries
B. The maximum declination of the sun increases up to 23 ½° N on about 21st June
C. The minimum declination of the sun is zero' on 22nd September
D. All the above
Answer : D
A. The sun's right ascension increases for 0 h to 24 h when it returns to the First point of Aries
B. The maximum declination of the sun increases up to 23 ½° N on about 21st June
C. The minimum declination of the sun is zero' on 22nd September
D. All the above
Answer : D
28. If the image of a triangulation station of R.L. 500 m is 4 cm from the principal point of a vertical photo taken from an altitude of 2000 m, above datum, the height displacement will be
A. 2 mm
B. 4 mm
C. 6 mm
D. 10 mm
Answer : D
A. 2 mm
B. 4 mm
C. 6 mm
D. 10 mm
Answer : D
29. 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
A. North pole
B. Pole star
C. Celestial pole
D. All the above
Answer : C
30. 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
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
31. Pick up the correct statement from the following:
A. Refraction correction is zero when the celestial body is in the zenith
B. Refraction correction is 33' when the celestial body is on the horizon
C. Refraction correction of celestial bodies depends upon their altitudes
D. All the above
Answer : D
A. Refraction correction is zero when the celestial body is in the zenith
B. Refraction correction is 33' when the celestial body is on the horizon
C. Refraction correction of celestial bodies depends upon their altitudes
D. All the above
Answer : D
32. To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30, 000, with a camera of 30 cm focal length, the flying height is
A. 4000 m
B. 5000 m
C. 6000 m
D. 7000 m
Answer : C
A. 4000 m
B. 5000 m
C. 6000 m
D. 7000 m
Answer : C
33. 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
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
34. 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
A. f sin ?
B. f cos ?
C. f tan ?
D. f sec ?
Answer : C
35. The orthogonal projection of the perspective centre on a tilted photograph, is called
A. Nadir
B. Isocenter
C. Principal point
D. Plumb point
Answer : C
A. Nadir
B. Isocenter
C. Principal point
D. Plumb point
Answer : C
36. 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
A. 24 %
B. 36 %
C. 40 %
D. 60 %
Answer : B
37. 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
A. March 21
B. June 21
C. September 21
D. December 22
Answer : B
38. Pick up the correct statement from the following:
A. Centre of the celestial sphere is taken as the position of the observer
B. Centre of the celestial sphere is taken as the centre of the earth
C. Stars move and maintain their relative positions
D. All the above
Answer : D
A. Centre of the celestial sphere is taken as the position of the observer
B. Centre of the celestial sphere is taken as the centre of the earth
C. Stars move and maintain their relative positions
D. All the above
Answer : D
39. 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
A. Equator
B. Celestial equator
C. Ecliptic
D. None of these
Answer : C
40. The maximum error in radial line assumption, is
A. h/H f tan ?
B. h/H f² tan ?
C. h/H f² sin ?
D. h/H f cos ?
Answer : A
A. h/H f tan ?
B. h/H f² tan ?
C. h/H f² sin ?
D. h/H f cos ?
Answer : A
41. The Polaris describes a small circle round the pole whose radius is approximately
A. 1°
B. 2°
C. 3°
D. 4°
Answer : A
A. 1°
B. 2°
C. 3°
D. 4°
Answer : A
42. 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
A. Reduction to mean sea level
B. Correction for horizontal alignment
C. Correction for slope
D. All the above
Answer : D
43. Pick up the incorrect statement from the following:
A. In truly vertical photographs without relief angles are true at the plumb point
B. In tilted photographs without relief, angles are true at the iso-centre
C. In tilled photographs with relief, angles are true at the principal point
D. None of these
Answer : C
A. In truly vertical photographs without relief angles are true at the plumb point
B. In tilted photographs without relief, angles are true at the iso-centre
C. In tilled photographs with relief, angles are true at the principal point
D. None of these
Answer : C
44. 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
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
45. 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
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
46. 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
A. 80°
B. 70°
C. 60°
D. 40°
Answer : D
47. 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
A. ? = z + ?
B. ? = ? - z
C. ? = 180° - (z + ?)
D. ? = (z + ?) - 180°
Answer : C
48. 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
A. H. f
B. H/f
C. f/H
D. H + f
Answer : C
49. The normal longitudinal overlap is generally kept
A. 50 %
B. 60 %
C. 70 %
D. 75 %
Answer : B
A. 50 %
B. 60 %
C. 70 %
D. 75 %
Answer : B
50. 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
A. 0.01 second
B. 0.001 second
C. 0.0001 second
D. None of these
Answer : C
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