Surveying, with sections on map reading. military sketching and topographic drawing (1919)
United States. War dept. Committee on education and special training. [from old catalog] · Washington · leaf 114
on raised and lowered for this adjustment? 57. After the adjustment has been made is the horizontal axis now level? 58. If not level is it necessary to repeat this operation? ADJUST TELESCOPE LEVEL. 59. In order to read vertical angles correctly and to take correct level read- ings should the axis… … - Honzonfal Li bne of SigM APPLY THE PEG METHOD OF ADJUSTMENT AS SHOWN INTHE DIAGRAM. 61. Is the method about the same as that used for the dumpy level? ADJUST THE VERTICAL CIRCLE. 62. What should be the reading of the vernier on the vertical circle if instru- ment is in adjustment? 63. If vernier…
Surveying · Military topography · Topographical drawing
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