Lesson 12 Permanent Adjustment of Level
Introduction
Fundamental Lines of a level
Relations among Fundamental Lines
Permanent Adjustment of Level
Permanent Adjustment of Dumpy Level Axis of the Level Tube is perpendicular to the Vertical axis Horizontal cross Hair should lie in a Plane Perpendicular to the Vertical axis The Line of Sight is Parallel to the axis of the Bubble Tube Example Permanent Adjustment of Tilting Level Permanent Adjustment of Automatic Level
Permanent Adjustment of Dumpy Level
Permanent Adjustment of Tilting Level
Permanent Adjustment of Automatic Level
Exercise 12
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