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1. Enumerate and discuss the advantages and disadvantages of pneumatic tires on farm equipment.

2. Explain the differences in traction and free-rolling tires and the agricultural tire code system.

3. Discuss the various factors that affect the life of agricultural pneumatic tires.

4. Discuss the various factors that affect the traction of tires.

¹ Frank L. Robeson, Physics, The Macmillan Company, New York, 1943.

¹ Agr. Engin., 14(2):39, 1933; 16(2):45, 1935; and 17(2):73, 1936.