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  • Question

  • The elevation of the star at elongation is obtained by


  • Options
  • A. sin ? = sin ? cosec ?
  • B. sin ? = sin ? sec ?
  • C. sin ? = cos ? sec ?
  • D. sin ? = cos ? cosec ?.

  • Correct Answer
  • sin ? = sin ? cosec ? 

    • Advanced Surveying problems

    Search Results

    • 1. If the general ground level of any area is 10% of the flying height, the principal points may be used as the centres of radial directions for small scale mapping even in tilted photograph up to

    • Options
    • A. 1°
    • B. 2°
    • C. 3°
    • D. 4°
      • Discuss
    • 2. The correction applied to the measured base of length L is

    • Options
    • A.
    • B. where w is the weight of tape/m
    • C. where h is height difference of end supports
    • D. Reduction to mean sea level =
    • E. all the above.
      • Discuss
    • 3. 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

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 4. Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel

    • Options
    • A. 24%
    • B. 36%
    • C. 40%
    • D. 60%.
      • Discuss
    • 5. Pick up the correct statement from the following :

    • Options
    • 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.
      • Discuss
    • 6. The angle between the direction of star and the direction of earth's axis of rotation is called

    • Options
    • A. co-declination
    • B. co-latitude
    • C. declination
    • D. latitude.
      • Discuss
    • 7. The position of a heavenly body on the celestial sphere can be completely specified by

    • Options
    • A. its altitude and azimuth
    • B. its declination and hour angle
    • C. its declination and right ascension
    • D. all the above.
      • Discuss
    • 8. By raising the z-column of right projector, maximum y-parallax is introduced in the model at

    • Options
    • A. position 1
    • B. position 2
    • C. position 4
    • D. position 6
    • E. position 4 and 6.
      • Discuss
    • 9. The angle between the plane of the equator and the plane of the ecliptic, is known as obliquity of the ecliptic and its value is

    • Options
    • A. 22° 30'
    • B. 23° 27'
    • C. 23° 30'
    • D. 24° 0'.
      • Discuss
    • 10. The relief displacement of a minar 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is

    • Options
    • A. 500 m
    • B. 1000 m
    • C. 1500 m
    • D. 2000 m.
      • Discuss

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