SURVEYING 55 



6. Describe the process of leveling a field. 



7. What is a contour map? 



8. What is the use of the horizontal circle found on some levels? 



9. Describe the compass. 



10. What is meant by the "declination of the needle?" 



11. What is the "bearing" of a line? 



12. Describe the surveyor's transit, and for what may it be used? 



REFERENCE TEXTS 



The Theory and Practice of Surveying, J. B. Johnson. 

 A Manual of Field and Office Methods for the Use of Students in 

 Surveying, William D. Pence and Milo S. Ketchum. 

 Plane Surveying, John Clayton Tracy. 



