logo

CuriousTab

CuriousTab

Discussion


Home Civil Engineering Advanced Surveying Comments

  • Question
  • The difference of parallax for a given difference in elevation is independent of


  • Options
  • A. focal length of the camera
  • B. overall size of the photo graphs
  • C. percentage of overlap
  • D. all the above.

  • Correct Answer
  • all the above. 


  • Advanced Surveying problems


    Search Results


    • 1. The prime vertical passes through

    • Options
    • A. the east point of the horizon
    • B. the west point of the horizon
    • C. the zenith point of the observer
    • D. the nadir point of horizon
    • E. all the above.
    • Discuss
    • 2. Pick up the in-correct statement from the folowing :

    • Options
    • A. Correction for refraction is always negative
    • B. Correction for parallax is always positive
    • C. Correction for semi-diameter is always negative
    • D. Correction for dip is always negative
    • E. None of these.
    • Discuss
    • 3. The rate of change of parallax dp/dh with respect to change in h, may be expressed as

    • Options
    • A. fB/(H - h)
    • B. fB/(H - h)2
    • C. fB/(H + h)
    • D. fB/(H + h)2.
    • Discuss
    • 4. The net ground area of a vertical photograph 20 cm x 20 cm on scale 1 : 10,000 having overlaps 60% and 30%, is

    • Options
    • A. 0.50 sq km
    • B. 0.56 sq km
    • C. 0.60 sq km
    • D. 0.64 sq km.
    • Discuss
    • 5. The scale of a tilted photograph of focal length f, taken from an altitude H, along the plate parallel through plumb point, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 6. 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

    • Options
    • A. principal point
    • B. isocentre
    • C. plumb point
    • D. perspective centre.
    • Discuss
    • 7. The negative sign is assigned to

    • Options
    • A. reduction to mean sea level
    • B. correction for horizontal alignment
    • C. correction for slope
    • D. correction for slope
    • E. all the above.
    • Discuss
    • 8. The method of surveying by triangula-tion was first introduced by the Dutchman Snell in

    • Options
    • A. 1600
    • B. 1615
    • C. 1630
    • D. 1650
    • E. 1680.
    • Discuss
    • 9. The angular distance of a heavenly body from the equator, measured along its meridian, is called

    • Options
    • A. declination
    • B. altitude
    • C. zenith distance
    • D. co-latitude.
    • Discuss
    • 10. Triangulation surveys are carried out for providing

    • Options
    • A. planimetric control
    • B. height control
    • C. both planimetric and height control
    • D. none of these.
    • Discuss


    Comments

    There are no comments.

Enter a new Comment