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  • Question
  • 23 cm x 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


  • Options
  • A. 1 m
  • B. 2 m
  • C. 3 m
  • D. 4 m
  • E. 5 m.

  • Correct Answer
  • 1 m 


  • Advanced Surveying problems


    Search Results


    • 1. Homologous point is

    • Options
    • A. photo principal point
    • B. ground principal point
    • C. ground isocentre
    • D. photo isocentre
    • E. all the above.
    • Discuss
    • 2. The meridian of a place is

    • Options
    • 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.
    • Discuss
    • 3. Sidereal day

    • Options
    • 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.
    • Discuss
    • 4. 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

    • Options
    • A. 30°
    • B. 35°
    • C. 40°
    • D. 45°.
    • Discuss
    • 5. If E is the spherical excess and R the radius of the earth, the surface area of the triangle, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 6. Homologous points are

    • Options
    • 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.
    • Discuss
    • 7. Pick up the correct statement for horizontal photographs.

    • Options
    • A. Parallel lines do not appear parallel in central projection
    • B. The two sides of a road meet at the vanishing point
    • C. The lines parallel to the negative plane are projected as parallel lines
    • D. All the above.
    • Discuss
    • 8. The plane at right angle to the zenith-nadir line and passing through the centre of the earth, is called

    • Options
    • A. rational horizon
    • B. true horizon
    • C. celestial horizon
    • D. all the above.
    • Discuss
    • 9. The distance between the minor control point and the principal point should be equal to

    • Options
    • A. base line of the left photograph of stereo pair
    • B. base line of the right photograph of stereo pair
    • C. sum of the base lines of stereo pair
    • D. mean of the base lines of the stereo pair.
    • Discuss
    • 10. Limiting gradient for locating the base line on evenly-sloping ground, is

    • Options
    • A. 1 in 12
    • B. 1 in 10
    • C. 1 in 8
    • D. 1 in 6.
    • Discuss


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