Civil Engineering - Advanced Surveying

Exercise :: Advanced Surveying - Section 3

36. 

The great circle along which the sun appears to trace on the celestial sphere with earth as centre during the year, is called

A. equator
B. celestial equator
C. ecliptic
D. none of these.

Answer: Option C

Explanation:

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37. 

The normal longitudinal overlap is generally kept

A. 50%
B. 60%
C. 70%
D. 75%.

Answer: Option B

Explanation:

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38. 

Pick up the in-correct statement from the folowing :

A. Correction for refraction is always negative
B. Correction for parallax is always positive
C. Correction for semi-diameter is always negative
D. Correction for dip is always negative
E. None of these.

Answer: Option C

Explanation:

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39. 

If E is the spherical excess and R the radius of the earth, the surface area of the triangle, is

A.
B.
C.
D.

Answer: Option B

Explanation:

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40. 

Triangulation surveys are carried out for providing

A. planimetric control
B. height control
C. both planimetric and height control
D. none of these.

Answer: Option C

Explanation:

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