Study of various parts of auto level

3. Various Parts of Auto Level

• Circular Bubble Tube: The bubble in the tube has to be brought in the center to leveling the base of the instrument.
• Eye Piece: It is used to see the leveling staff kept on a ground point.
• Cross Hair Focusing: It is used to focus the cross hair fitted in the telescopic tube of the level near eye piece.
• Graduated Horizontal Circle: It is used to measure the horizontal angle of the line of sight.

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