Civil Engineering - Advanced Surveying

Exercise :: Advanced Surveying - Section 4

6. 

The sidereal day is the time interval between two successive upper transits of

A. mean sun
B. first point of Aries
C. first point of Libra
D. the polar star
E. moon.

Answer: Option B

Explanation:

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7. 

Pick up the correct statement from the following :

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.

Answer: Option D

Explanation:

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8. 

Pick up the in-correct statement from the following :

A. Apparent solar time is measured from the lower transit of the true sun
B. Mean solar time is measured from the lower transit of the mean sun
C. Sidereal time is measured from the lower transit of the first point of Aries
D. Sidereal time is measured from the upper transit of the first point of Aries.

Answer: Option D

Explanation:

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9. 

The declination and right ascension of the sun becomes 23° 27' N and 90° respectively on

A. March 21
B. June 21
C. September 21
D. December 22.

Answer: Option B

Explanation:

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10. 

If δ is the declination of the Polaris and λ is the latitude of the place, the azimuth of the polaris, is

A.
B.
C.
D. .

Answer: Option A

Explanation:

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