Deck plan questions:
FFA State Finals: 2015 Ag. Mechanics: Problem Solving Instructions: Place your contestant number on the Scantron form issued by the proctor. Examine plans provided. Consider the questions pertaining to each, and record your answers on the Scantron. Scratch paper is provided for your calculations.
ITRC Flap Gate Questions: Use the attached drawing for the next 15 questions.
1. What size tubing is used for the dynamic frame? a. 2” x 2” b. 2” x 4” c. 2” x 6” d. 4” x 6” 2. What is the elevation of the target water level on the flap gate? a. 35.875’ b. 99.95’ c. 102.94’ d. 135.825’ 3. What obtuse angle must be cut on the flap gate stop if you only want the gate to open 32 degrees? a. 58 b. 148 c. 328 d. Not enough information given. 4. What is the center-to-center distance between the bolt holes which attach the counterweight to the dynamic frame? a. 9/16” b. 3/4” c. 1.0” d. 1.5” 5. What is the width of the entire static frame? a. 23.25” b. 30” c. 33” d. 47” 6. The opening in the top of the counterweight should be of what dimensions? a. 10” x 11-5/8” b. 7-7/4” x 15” c. 10” x 13-1/2” d. 23-1/4” x 30”
7. What is the exact length of the counterweight support tubing? a. 4” b. 30” c. 33” d. None of the above 8. What is the shaft diameter required to support the dynamic frame and counterweight? a. 1.5” b. 2” c. 2.5” d. 4” 9. Approximately how many feet of tubing are required to build the dynamic frame? a. 22’ b. 30’ c. 38’ d. 45’ 10. If concrete were used to fill the counterweight, how many cubic feet would be required? a. 0.32 b. 4.91 c. 9.19 d. 9.51 11. In order for the bearings to slide onto the shaft, the shaft must be smooth and hold tight tolerances. What type of shaft should be purchased? a. Cold Rolled b. Hot Rolled c. Hot Dipped d. Rebar 12. What is the scale on counterweight support detail? a. 1:4 b. 1:8 c. 1:16 d. 1:32 13. How much longer would the shaft need to be for a zero tolerance fit for its length? a. 0.125” b. 0.25” c. 0.50” d. 0.5625”
14. If all of the flat plate was made of the same material, approximately how many square feet would you need to buy? a. 5 b. 9 c. 19 d. 32 15. Looking at the side view, which way would the flap gate rotate open when the water reaches the target level? a. Up b. Down c. Clockwise d. Counter-Clockwise
Surveying Questions: 16. A field must be lowered by 1 foot for irrigation purposes. If the field is 100 feet by 250 feet, how many cubic yards will be removed? a. 350 cubic yards b. 926 cubic yards c. 2,778 cubic yards d. 8,333 cubic yards e. 25,000 cubic yards 17. A field that has a base of 1200 feet on one side and 800 feet on the other side. The perpendicular distance between the two sides is 500 feet. What is the area of the field? a. 400,000 sq. feet b. 500,000 sq. feet c. 600,000 sq. feet d. 650,000 sq. feet e. 700,000 sq. feet 18. A laser level is used to measure the slope of a field that is 2640 feet long. It is set up and a reading of 1.25’ is taken at the north edge of the field, then a reading on a water valve of 4.67’ is taken. The laser level is moved and a new reading on the valve of 1.25’ is taken and then a reading of 5.78’ on the south end of the field is taken. What is the slope from north to south end of the field? a. +0.40 % b. -0.30 % c. -0.40 % d. -0.79% e. -7.95%
Use the image at the right to answer the next 3 questions.
19. What is the Contour interval of the map. a. 200 feet b. 2 feet c. 20 feet d. 40 feet e. Cannot be determined B
20. What is the vertical distance from point “A” to Point “B” a. 6 feet b. 120 feet c. 240 feet d. 620 feet e. Depends on the scale 21. What does the dotted line labeled “C” represent? a. Contour Interval b. Paved road c. Dirt Road d. Creek e. Limit of the Gravel Pit
A
C
22. The image to the right shows level rod readings across a canal. What is the approximate cross-sectional area of the canal at 12+25?
a. b. c. d. e.
50.0 sq. ft. 82.5 sq. ft. 137.5 sq. ft. 100 sq. ft. 275 sq. ft.
23. On the previous image, if the Left top of bank was at an elevation of 105.86 feet, what would the right Toe elevation be? a. 96.96 feet b. 100.00 feet c. 102.53 feet d. 105.86 feet e. 120.33 feet
Answer the following two questions based on the following elevations from a set of profile notes on an irrigation ditch (all dimensions in feet). Station 103+25 Station 105+90 Station 112+50 Station 114+00
Elev. 1345.56 Elev. 1338.93 Elev. 1322.43 Elev. 1318.83
24. If the slope from 103+25 to 105+90 continued to 108+00 what would you expect the elevation at 108+00 to be: a. 1328.95 b. 1333.68 c. 1333.75 d. 1341.66 e. 1357.37 25. If it was a straight slope from 103+25 to 114+00 (ignore stations 105+90 and 112+50) what would you expect the elevation at 108+00 to be: a. 1328.95 b. 1333.68 c. 1333.75 d. 1341.66 e. 1357.37 26. For an irrigation test, graduated cylinders must be set on a 20 foot grid across a rectangular field that is 100 feet by 180 feet, beginning at the corner of the field. How many cylinders will be needed? a. 45 cylinders b. 47 cylinders c. 54 cylinders d. 60 cylinders e. 90 cylinders 27. One end of a field has an elevation of 234.5’ the other end has an elevation of 241.6’. If the field is 350’ long what is the slope of the field? a. 1.5 % b. 2.0 % c. 2.5 % d. 3.5 % e. 7.1 % 28. On the aerial photo shown to the right, a grid has been scribed every 0.2 inch on the photo. If the Photo Scale is 1” = 500 feet, what is the approximate area of the field outlined. a. 12,500 sq. feet b. 25,000 sq. feet c. 125,000 sq. feet d. 250,000 sq. feet e. 1,250,000 sq. feet
29. A field is to be land leveled to a -0.5% slope from North to South. If the Southeast corner has an elevation of 1586.50 feet, and the distance from the Southeast corner to the Northeast corner is ½ mile (1 mile = 5280 feet) due North from the Southeast corner. What should the final elevation at the Northeast corner be? a. 1573.30 feet b. 1587.82 feet c. 1585.18 feet d. 1599.70 feet e. 1718.50 feet 30. A train leaves San Francisco on 9:00 AM PST April 1, 1994 heading for New York at an average of 50 MPH. Another train leaves New York at 5:00 PM EST April 1, 1994 heading for San Francisco at an average of 40 MPH. Assuming it is 3000 track miles between New York and San Francisco, how far from San Francisco will the two trains collide. a. 1500 miles b. 1777 miles c. 1333 miles d. 1222 miles e. 1666 miles
ITRC Flap Gate Questions: Use the attached drawing for the next 15 questions.
1. What size tubing is used for the dynamic frame? a. 2” x 2” b. 2” x 4” c. 2” x 6” d. 4” x 6” 2. What is the elevation of the target water level on the flap gate? a. 35.875’ b. 99.95’ c. 102.94’ d. 135.825’ 3. What obtuse angle must be cut on the flap gate stop if you only want the gate to open 32 degrees? a. 58 b. 148 c. 328 d. Not enough information given. 4. What is the center-to-center distance between the bolt holes which attach the counterweight to the dynamic frame? a. 9/16” b. 3/4” c. 1.0” d. 1.5” 5. What is the width of the entire static frame? a. 23.25” b. 30” c. 33” d. 47” 6. The opening in the top of the counterweight should be of what dimensions? a. 10” x 11-5/8” b. 7-7/4” x 15” c. 10” x 13-1/2” d. 23-1/4” x 30”
7. What is the exact length of the counterweight support tubing? a. 4” b. 30” c. 33” d. None of the above 8. What is the shaft diameter required to support the dynamic frame and counterweight? a. 1.5” b. 2” c. 2.5” d. 4” 9. Approximately how many feet of tubing are required to build the dynamic frame? a. 22’ b. 30’ c. 38’ d. 45’ 10. If concrete were used to fill the counterweight, how many cubic feet would be required? a. 0.32 b. 4.91 c. 9.19 d. 9.51 11. In order for the bearings to slide onto the shaft, the shaft must be smooth and hold tight tolerances. What type of shaft should be purchased? a. Cold Rolled b. Hot Rolled c. Hot Dipped d. Rebar 12. What is the scale on counterweight support detail? a. 1:4 b. 1:8 c. 1:16 d. 1:32 13. How much longer would the shaft need to be for a zero tolerance fit for its length? a. 0.125” b. 0.25” c. 0.50” d. 0.5625”
14. If all of the flat plate was made of the same material, approximately how many square feet would you need to buy? a. 5 b. 9 c. 19 d. 32 15. Looking at the side view, which way would the flap gate rotate open when the water reaches the target level? a. Up b. Down c. Clockwise d. Counter-Clockwise
Surveying Questions: 16. A field must be lowered by 1 foot for irrigation purposes. If the field is 100 feet by 250 feet, how many cubic yards will be removed? a. 350 cubic yards b. 926 cubic yards c. 2,778 cubic yards d. 8,333 cubic yards e. 25,000 cubic yards 17. A field that has a base of 1200 feet on one side and 800 feet on the other side. The perpendicular distance between the two sides is 500 feet. What is the area of the field? a. 400,000 sq. feet b. 500,000 sq. feet c. 600,000 sq. feet d. 650,000 sq. feet e. 700,000 sq. feet 18. A laser level is used to measure the slope of a field that is 2640 feet long. It is set up and a reading of 1.25’ is taken at the north edge of the field, then a reading on a water valve of 4.67’ is taken. The laser level is moved and a new reading on the valve of 1.25’ is taken and then a reading of 5.78’ on the south end of the field is taken. What is the slope from north to south end of the field? a. +0.40 % b. -0.30 % c. -0.40 % d. -0.79% e. -7.95%
Use the image at the right to answer the next 3 questions.
19. What is the Contour interval of the map. a. 200 feet b. 2 feet c. 20 feet d. 40 feet e. Cannot be determined B
20. What is the vertical distance from point “A” to Point “B” a. 6 feet b. 120 feet c. 240 feet d. 620 feet e. Depends on the scale 21. What does the dotted line labeled “C” represent? a. Contour Interval b. Paved road c. Dirt Road d. Creek e. Limit of the Gravel Pit
A
C
22. The image to the right shows level rod readings across a canal. What is the approximate cross-sectional area of the canal at 12+25?
a. b. c. d. e.
50.0 sq. ft. 82.5 sq. ft. 137.5 sq. ft. 100 sq. ft. 275 sq. ft.
23. On the previous image, if the Left top of bank was at an elevation of 105.86 feet, what would the right Toe elevation be? a. 96.96 feet b. 100.00 feet c. 102.53 feet d. 105.86 feet e. 120.33 feet
Answer the following two questions based on the following elevations from a set of profile notes on an irrigation ditch (all dimensions in feet). Station 103+25 Station 105+90 Station 112+50 Station 114+00
Elev. 1345.56 Elev. 1338.93 Elev. 1322.43 Elev. 1318.83
24. If the slope from 103+25 to 105+90 continued to 108+00 what would you expect the elevation at 108+00 to be: a. 1328.95 b. 1333.68 c. 1333.75 d. 1341.66 e. 1357.37 25. If it was a straight slope from 103+25 to 114+00 (ignore stations 105+90 and 112+50) what would you expect the elevation at 108+00 to be: a. 1328.95 b. 1333.68 c. 1333.75 d. 1341.66 e. 1357.37 26. For an irrigation test, graduated cylinders must be set on a 20 foot grid across a rectangular field that is 100 feet by 180 feet, beginning at the corner of the field. How many cylinders will be needed? a. 45 cylinders b. 47 cylinders c. 54 cylinders d. 60 cylinders e. 90 cylinders 27. One end of a field has an elevation of 234.5’ the other end has an elevation of 241.6’. If the field is 350’ long what is the slope of the field? a. 1.5 % b. 2.0 % c. 2.5 % d. 3.5 % e. 7.1 % 28. On the aerial photo shown to the right, a grid has been scribed every 0.2 inch on the photo. If the Photo Scale is 1” = 500 feet, what is the approximate area of the field outlined. a. 12,500 sq. feet b. 25,000 sq. feet c. 125,000 sq. feet d. 250,000 sq. feet e. 1,250,000 sq. feet
29. A field is to be land leveled to a -0.5% slope from North to South. If the Southeast corner has an elevation of 1586.50 feet, and the distance from the Southeast corner to the Northeast corner is ½ mile (1 mile = 5280 feet) due North from the Southeast corner. What should the final elevation at the Northeast corner be? a. 1573.30 feet b. 1587.82 feet c. 1585.18 feet d. 1599.70 feet e. 1718.50 feet 30. A train leaves San Francisco on 9:00 AM PST April 1, 1994 heading for New York at an average of 50 MPH. Another train leaves New York at 5:00 PM EST April 1, 1994 heading for San Francisco at an average of 40 MPH. Assuming it is 3000 track miles between New York and San Francisco, how far from San Francisco will the two trains collide. a. 1500 miles b. 1777 miles c. 1333 miles d. 1222 miles e. 1666 miles
