Which of the following are the fundamental lines of a theodolite ?1. The vertical and horizontal axes2. The diagonally opposite screw lines3. The line of collimation and axes of the plate levels4. The bubble line of the altitude level.Select the correct answer using the codes given below

Comments and Answers (2)

Andy

Andy

What is the correct solution?

Priya

Priya

does anyone know the correct answer

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