Civil Engineering - Advanced Surveying - Discussion

3. 

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

Explanation:

No answer description available for this question.

Rasik said: (Dec 23, 2018)  
What is the use of stereo plotting instruments?

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