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  • Question
  • Polaris is usually observed for the determination of the latitude when it is


  • Options
  • A. at culmination
  • B. at elongation
  • C. neither at culmination nor at elongation
  • D. either at culmination or at elongation.

  • Correct Answer
  • at culmination 


  • Advanced Surveying problems


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    • 1. The normal longitudinal overlap is generally kept

    • Options
    • A. 50%
    • B. 60%
    • C. 70%
    • D. 75%.
    • Discuss
    • 2. With standard meridian as 82° 30' E the standard time at longitude 90° E is 8 h 30 m. The local mean time at the place will be

    • Options
    • A. 7 h 00 m
    • B. 7 h 30 m
    • C. 8 h 00 m
    • D. 8 h 30 m
    • E. 9 h 00 m.
    • Discuss
    • 3. The true and mean suns occupy the same meridian at the same time on

    • Options
    • A. April 15
    • B. June 14
    • C. September 1
    • D. December 25
    • E. all the above.
    • Discuss
    • 4. If S is the sum of three angles of a spherical triangle, the spherical excess equals

    • Options
    • A. S - 90°
    • B. S - 180°
    • C. S - 270°
    • D. S - 360°.
    • Discuss
    • 5. For a spherical triangle ABC, pick up incorrect statement

    • Options
    • A.
    • B.
    • C.
    • D.
    • E. none of these.
    • Discuss
    • 6. Right ascension of a heavenly body is its equatorial angular distance measured

    • Options
    • A. westward from the first point of Libra
    • B. eastward from the first point of Aeries
    • C. westward from the first point of Aeries
    • D. eastward from the first point of Libra.
    • Discuss
    • 7. If ? is the observed altitude, the refraction correction in seconds, is

    • Options
    • A. 58" cot ?
    • B. 58" tan ?
    • C. 58 sin ?
    • D. 58 cos ?.
    • Discuss
    • 8. The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The latitude of the place, is

    • Options
    • A. 80°
    • B. 70°
    • C. 60°
    • D. 50°
    • E. 40°.
    • Discuss
    • 9. The great circle along which the sun appears to trace on the celestial sphere with earth as centre during the year, is called

    • Options
    • A. equator
    • B. celestial equator
    • C. ecliptic
    • D. none of these.
    • Discuss
    • 10. A star is said to elongate

    • Options
    • A. when the star momentarily moves vertically
    • B. when the angle at the star of the spherical triangle is 90°
    • C. when the star's declination is greater than the observer's latitude
    • D. all the above.
    • Discuss


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