1997 State Competition    Contestant #___________________
FFA Agricultural Mechanics Contest   Contestant Name_______________
University of Missouri    Chapter_______________________
50 points
 
 

SOIL AND WATER CONSERVATION

Questions 1 - 3 can be answered based on the information stated in each question (no field reading is required).

In the Universal Soil Loss Equation:

 A = RKLSCP

LS is the expected ratio of soil loss per unit area on a field slope.

1. Use the chart provided to determine the correct LS factor for a slope of 100 ft.  with a 4% slope.

 A.  0.2
 B.  0.4
 C.  0.6
 D.  0.8
2.  The legal land description for the area designated by x is:

 A.  SE 1/4, SW 1/4, SW 1/4, Sec. 16
 B.  SE 1/4, SW 1/4, NE 1/4, Sec. 16
 C.  NE 1/4, SW 1/4, SE 1/4, Sec. 16
 D.  NE 1/4, SE 1/4, SW 1/4, Sec. 16
 
Section 16

3.   How many acres are in the area designated by y?

 A.  160 acres
 B.  40 acres
 C.  80 acres
 D.  10 acres

Questions 4-10 require field readings using the equipment provided at each station.

4. The % crop residue for the given land plot is:

 A. 10 %
 B. 20%
 C. 50%
 D.  80%

5. Which of these stakes are on the same contour line as stakes 1, 2, and 3?

 A. J
 B. K
 C. L
 D. M

6. How far apart are stakes A and B?

 A. 70 feet
 B. 90 feet
 C. 110 feet
 D. 130 feet

 7. You are to determine the area in square feet of the right triangle C - D - E, where sides CD and DE are the legs of the triangle (form a 90o angle).  The length of side CD is 100 feet (not shown).  Based on your pacing estimate of length DE, determine the area of the right triangle.

 A. 2000 square feet
 B. 3000 square feet
 C. 4000 square feet
 D. 5000 square feet

8. Use the level provided to determine which of the stakes M, N, O, and P should be selected to layout a 120 degree corner for a field.  Stake G is the corner of your field and should be directly under the plumb bob.  Stake F is your beginning reference point.

 A. M
 B. N
 C. O
 D. P

9. Use the stadia hairs to determine the distance from the instrument to stake H.

 A. 150 feet
 B. 200 feet
 C. 250 feet
 D. 300 feet

10. Based on the surveyors pins and the tape provided, how far is stake F from the point where the surveyors began? (Note: The number of pins on the ring represent the pins that the rear chainman has already pulled.)

 A. 271 feet
 B. 329 feet
 C. 229 feet
 D. 371 feet