The stereo plotting instruments are generally manufactured on the principle of

A. Optical projection

B. Optical mechanism projection

C. Mechanical projection

D. All the above

Answer: Option D

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Related Questions on Surveying

Select the correct statement.

A. A contour is not necessarily a closed curve.

B. A contour represents a ridge line if the concave side of lower value con¬tour lies towards the higher value contour.

C. Two contours of different elevations do not cross each other except in case of an overhanging cliff.

D. All of the above statements are correct.

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

For a line AB

A. the forebearing of AB and back bearing of AB differ by 180°

B. the forebearing of AB and back bearing of BA differ by 180°

C. both (A) and (B) are correct

D. none is correct