The great circle along which the sun appears to trace on the celestial sphere wi

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Question
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.

Correct Answer

ecliptic

Advanced Surveying problems

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1. 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�.

3. 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.

4. 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.

6. 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.

7. Pick up the correct statement from the following :
Options
A. The principal point coincides with plumb point on a true vertical photograph
B. The top of a hill appears on a truly vertical photograph at greater distance than its bottom from the principal point
C. The top of a hill is represented on a vertical photograph at larger scale than the area of a nearby valley
D. The planimetric displacement of the point due to relief on a truly vertical photograph is directly proportional to its distance from the principal point and also its elevation
E. All the above.

8. In a truly vertical photograph,
Options
A. principal point coincides the isocentre
B. iso-centre coincides the plumb point
C. plumb point coincides the principal point
D. principal point, iso-centre and plumb point coincide
E. all the above.

9. The latitude of a place was obtained by subtracting the zenith distance of a star from its declination, the observed star was between
Options
A. horizon and equator
B. equator and zenith
C. zenith and pole
D. pole and horizon.

10. The want of correspondence in stereo-photographs
Options
A. is a good property
B. is a function of tilt
C. is not affected by the change of flying height between photographs
D. is minimum when ? is 3�.

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