The principal plane contains

A. Nadir point

B. Iso-centre

C. Principal point

D. All the above

Answer: Option D

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Related Questions on Surveying

Pick up the correct statement from the following:

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. All the above

For mapping any country

A. Geodetic triangulation of greatest possible sides and accuracy is carried out

B. Primary triangles are broken down into secondary triangles of somewhat lesser accuracy

C. Secondary triangles are further broken into third and fourth order triangles, the points of which are used for detail surveys

D. All the above