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  • Question
  • The height displacement on a vertical photograph


  • Options
  • 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.

  • Correct Answer
  • all the above. 


  • Advanced Surveying problems


    Search Results


    • 1. Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.

    • Options
    • A. by subtracting their longitudes if places are in the same hemisphere
    • B. by adding their longitudes if places are in the different hemispheres
    • C. by subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres
    • D. all the above.
    • Discuss
    • 2. The correction for parallax, is

    • Options
    • A. - 8".8 cos ?
    • B. + .8" sin ?
    • C. + 8".8 cos ?
    • D. - 8".8 cos ?.
    • Discuss
    • 3. If v, t and are the ground speed of the aircraft, the shutter speed of the camera and the scale of the photograph respectively, then the amount of image displacement

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 4. The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as

    • Options
    • A. satellite station
    • B. eccentric station
    • C. false station
    • D. pivot station.
    • Discuss
    • 5. For any star to be a circumpolar star, its

    • Options
    • A. declination must be 0°
    • B. declination must be 90°
    • C. distance from the pole must be less than the latitude of the observer
    • D. hour angle must be 180°.
    • Discuss
    • 6. In a tropical year, the number of sidereal days, are

    • Options
    • A. 365
    • B. 365.2224
    • C. 365.2422
    • D. 366.2422
    • E. 366.2224.
    • Discuss
    • 7. Pick up the correct statement from the following :

    • Options
    • A. The angle between the plane of the negative and the horizontal plane containing perspective axis is the tilt of the photograph
    • B. The direction of maximum tilt is defined by the photo principal line
    • C. The principal plane is truly vertical plane which contains perspective centre as well as principal point and plumb point
    • D. All the above.
    • Discuss
    • 8. The relation between the air base (B), photographic base (b), flying height (H) and the focal length (f) of a vertical photograph, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 9. Systematic errors

    • Options
    • A. always follow some definite mathematical law
    • B. can be removed by applying corrections to the observed values
    • C. either make the result too great or too small
    • D. are also known as cumulative errors
    • E. all the above.
    • Discuss
    • 10. The difference in longitude of two places expressed in time is equal to the difference in their

    • Options
    • A. sidereal time
    • B. apparent solar time
    • C. mean solar time
    • D. all the above.
    • Discuss


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