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  • Question
  • If ? is the declination of the star and ? is the latitude of the observer, then the azimuth of the star at elongation is given by


  • Options
  • A. sin z = sec ? . cos ?
  • B. cos z = sec ? . cos ?
  • C. tan z = sec ? . cos ?
  • D. none of these.

  • Correct Answer
  • sin z = sec ? . cos ? 


  • Advanced Surveying problems


    Search Results


    • 1. Pick up the correct statement from the following :

    • Options
    • A. Ursa Minor's remains always north of pole star
    • B. Polar star remains always north of Polaris
    • C. Polaris remains always north of Ursa Minor's
    • D. Ursa Minor's pole star and polaris are the names of the same star.
    • Discuss
    • 2. The angle between the observer's meridian and declination circle of a heavenly body, is known as

    • Options
    • A. hour angle
    • B. azimuth
    • C. right ascension
    • D. declination.
    • Discuss
    • 3. The sidereal day is the time interval between two successive upper transits of

    • Options
    • A. mean sun
    • B. first point of Aries
    • C. first point of Libra
    • D. the polar star
    • E. moon.
    • Discuss
    • 4. Pick up the correct statement from the following :

    • Options
    • A. the horizontal direction of the pole is called astronomical north.
    • B. the angle between the direction of true north and the direction of a survey line is called astronomical bearing
    • C. the astronomical bearing is generally called azimuth
    • D. all the above.
    • Discuss
    • 5. The solar tidal force divided by lunar tidal force is

    • Options
    • A.
    • B.
    • C.
    • D. .
    • Discuss
    • 6. The altitude of a circumpolar star is maximum when it is

    • Options
    • A. at east elongation
    • B. at upper culmination
    • C. at west elongation
    • D. at lower culmination.
    • Discuss
    • 7. The altitude of a heavenly body is its angular distance, measured on the vertical circle passing through the body, above

    • Options
    • A. equator
    • B. horizon
    • C. pole
    • D. none of these.
    • Discuss
    • 8. The coverage is least if photography is

    • Options
    • A. high oblique
    • B. low oblique
    • C. vertical
    • D. none of these.
    • Discuss
    • 9. If ? is the declination of the star and ? is the latitude of the observer then the hour angle of the star at elongation is given by

    • Options
    • A. sin H = tan ? . cot ?
    • B. cos H = tan ? . cot ?
    • C. tan H = tan ? . cot ?
    • D. none of these.
    • Discuss
    • 10. In a spherical triangle ABC, right angled at C, sin b equals

    • Options
    • A. sin a cos A
    • B. cos a sin A
    • C. tan a cot A
    • D. cot A tan a
    • E. none of these.
    • Discuss


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