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  • Question
  • 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.

  • Correct Answer
  • all the above. 


  • Advanced Surveying problems


    Search Results


    • 1. 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
    • 2. 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
    • 3. 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.
    • Discuss
    • 4. Homologous point is

    • Options
    • A. photo principal point
    • B. ground principal point
    • C. ground isocentre
    • D. photo isocentre
    • E. all the above.
    • Discuss
    • 5. 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
    • 6. 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
    • 7. 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
    • 8. Pick up the correct statement from the following :

    • Options
    • 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. Point where polar axis when produced southward intersects the celestial sphere, is known as south celestial pole
    • E. all the above.
    • Discuss
    • 9. The length of a parallel of ? latitude between two meridians is equal to difference in logitudes multiplied by

    • Options
    • A. sin ?
    • B. cos ?
    • C. tan ?
    • D. cot ?.
    • Discuss
    • 10. Pick up the incorrect statement from the following. In a spherical triangle

    • Options
    • 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. if the sum of any two sides is ?, the sum of the angles opposite them is also ?
    • E. sum of any two sides is greater than the third.
    • Discuss


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