FFA Agricultural Mechanics Career Development Event. Written Examination

Transcription

1 FFA Agricultural Mechanics Career Development Event 2008 State Competition University of Missouri 100 points Written Examination Ag Machinery 1. A combine would most commonly have a final drive? a. Gear b. Belt c. Hydrostatic d. Chain 2. A PTO shaft which has 21 splines is rated at how many RPM s? a b c. 540 d Which of the following shaft speeds would you expect to find powering a 1000 bushel grain cart? a. 540 b c. 990 d The penetration of a chisel plow depends on: a. Hitch angle (horizontal / level to land) b. Type of soil c. Soil moisture d. All of the above 5. Which of the following is not a positive displacement pump? a. Roller b. Piston c. Diaphragm d. Centrifugal 6. A row crop tractor in which the front wheels pull is said to have: a. Mechanical Four Wheel Drive b. Mechanical Front Wheel Drive c. Manufactured Front Wheel Drive d. Manufactured Four Wheel Drive 1

2 7. Which type of wheel on a planter firms the seed bed after the seed is placed in the soil? a. Gauge Wheel b. Carrying Wheel c. Press Wheel d. Drive Wheel 8. To correct cone shaped bales with a round baler, you should? a. Reduce weave b. Weave on wind row to feed hay evenly into the baler c. Adjust slip clutch d. None of the above 9. What controls the depth on most fully mounted tillage implements? a. Gauge Wheel b. Slide Runner c. Tail Wheels d. Stands 10. occurs when consecutive plowing trips are adjacent on the left. a. Head Furrow b. Last Furrow c. Dead Furrow d. Land Furrow 11. All of the following materials are used to manufacture spray nozzles except? a. Brass b. Copper c. Ceramic d. Hardened Stainless Steel 12. All of the following crops are usually planted with a row crop planter except? a. Corn b. Soybean c. Cotton d. Wheat 13. A 25 disk is equipped with 4 hydraulic lift cylinders. Each cylinder has 2 hoses connected to it. What type of cylinders is this disk equipped with? a. Single acting b. Dual acting c. 4 stage d. 2 stage 14. When corn stalks become weak and fall flat, what should you do to harvest the corn? a. Increase ground speed of combine b. Increase cylinder speed c. Open Concaves d. Install a pick up reel 2

3 15. Which of the following tillage implements is considered a primary tillage tool? a. Finish Disk b. Spike Harrow c. Subsoiler d. Field Cultivator 16. You are using a planter that is 30 wide, the row spacing is set on 30. Each row is equipped with 3 bushel boxes. How many bushels will this planter hold when full? a. 12 b. 36 c. 30 d. 24 Concrete & Plumbing 17. When placing rebar in a concrete foundation/basement wall for reinforcement, where should it be placed? a. In the center of the wall b. Near the outside of the wall (dirt side, toward the outside of the building) c. Near the inside of the wall (basement side, toward the inside of the wall) d. Where ever it ends up when the concrete is poured 18. In what application would you want to use a heavy broom finish on concrete? a. On a basement floor b. inside a swine facility c. On a sidewalk d. On a outdoor walkway to a dairy milking barn 19. When you add water to a concrete mix it? a. Increases the amount of weight you can put on the concrete b. Decreases overall strength of the concrete c. Increases compression strength d. Makes no difference how much you add, it will stay the same 20. What kind of copper is most widely used for indoor plumbing in a house? a. Type J b. Type K c. Type L d. Type M 21. Concrete is strong in strength and relatively weak in strength? a. Compressive, tensile b. Tensile, compressive c. Expansive, compressive d. Compressive, expansive 3

4 22. What is the difference in tempered and annealed copper tubing? a. Tempered is soft and annealed is hard b. Tempered is hard and annealed is soft c. There are no differences d. Tempered is easier to cut than annealed 23. What is concrete composed of? a. Portland cement, sand, air, rock and water b. Paste and aggregate c. Portland cement, sand, and water d. Paste, aggregate, and water 24. The maximum temperature CPVC pipe should be exposed to is? a. 150 Degree F b. 180 Degree F c. 120 Degree F d. 135 Degree F 25. A rainwater leader (pipe) is often referred to as what? a. Water hose b. A rainwater leader is nonexistent c. Sump pump hole d. Downspout 26. Reinforcing steel is added to concrete to add what? a. Compressive strength b. Tensile Strength c. Conductivity d. Insulation 27. What types of joints are used in concrete floors? a. Isolation, control, shrinkage b. Control, construction, shrinkage c. Construction, isolation, control d. Shrinkage, construction, isolation 28. What type of Portland cement is best suited for high early strength? a. Type 1 b. Type 2 c. Type 3 d. Type When placing rebar in a concrete slab, you are told to put a #5 bar in the concrete, what size are you going to use? a. 3/8 b. 1/2 c. 5/8 d. 1 4

5 30. All of the following are advantages of using plastic pipe except? a. High crush resistance b. Lightweight c. Corrosive resistant d. Inexpensive 31. When mixing concrete it calls for a 1:2.2:2.4 mix, what does the 2.2 represent? a. Portland cement b. Sand c. Gravel d. Water 32. What kind of plumbing pipe should not be used when there will be heated water flowing through it? a. CPVC b. PVC c. Flared copper d. Sweat soldered copper 33. What schedule of pipe is recommended for above ground exposed work? a. Schedule 40 b. Schedule 160 c. Schedule 80 d. Schedule 125 Electric Motors 34. An ammeter is used to: a. Measure current in a circuit b. Measure electronic force placed on an electric motor c. Checking a circuit for ground d. Both A and B 35. A local dairy farmer is visiting with you and says his cows milk production suddenly dropped off last week and has not recovered. What is one item that could have caused this? a. Use of an electric cattle prod while sorting b. Stray voltage in the water source c. Air quality in the milking parlor d. Switch to daylight savings time milking 36. Current Flows of up to times the amount of normal operating current are required to start some electric motors. a. six times b. three times c. one times d. five times 5

6 37. Special Fuses are designed to be used for electric motor applications. What are these fuses called? a. Time Delay Fuses b. Circuit Breakers c. Blade Fuses d. All the above 38. Since Agriculture Livestock Buildings tend to be damp and dusty it is recommended that the wiring be a. Enclosed in metal conduit. b. Enclosed in plastic conduit c. Surface mounted, not concealed within walls or ceilings d. Stapled within walls and ceilings 39. Where is a Ground Fault Circuit Interrupter (GFCI) required by the NEC? a. Bedroom b. Living Room c. Bathroom d. Office 40. During times of peak demand, power companies can lower the voltage 3-5% in order to conserve energy. What is this sag in voltage called? a. Power drop b. Brown out c. Blackout d. Phase imbalance 41. An Ohm is a unit of measurement, what is it measuring? a. Current flow through the circuit b. Resistance in a circuit c. Voltage in a circuit d. All the above 42. Corroded electrical connections within a circuit will most likely cause: a. An increase in resistance b. Decrease in speed of an electric motor c. An electric motor to run hotter than normal d. Both A and C 43. A thermal protection device is used to prevent the electric motor from. a. Overloading b. Overheating c. Starting under a load d. Over-speeding 44. In general living areas, a wall that is feet long or longer should have a duplex receptacle. a. 2 b. 6 c. 10 d. 20 6

7 45. Electric motors have many advantages over other means of producing mechanical power. Which of the following apply? a. Low initial cost b. Easy to start c. Long operating life of motor d. All the above 46. Which of the following electric motors is best suited to power a ventilating fan in a livestock confinement building? a. Totally enclosed b. Drip proof c. Explosion proof d. Splash proof 47. Three phase power generation uses how many lines to move power to the consumer? (excluding the ground) a. 2 b. 3 c. 4 d Three types of phase configurations are: a. Three phase Wye b. Three phase Delta c. Three phase Open Delta d. All the above 49. What device does a split phase start induction run motor use to start the motor? a. Centrifugal start switch b. Start Capacitor c. Starting windings d. Both A and C 50. Shaded pole motors, such as in an air compressor, are typically found in a. Low torque applications b. High torque applications c. Medium torque applications d. All of the above. Oxy-Acetylene 51. A loud snap or pop is heard when oxy-acetylene welding. This is called a: a. Backfire b. Reverse fire c. Flashback d. Popping off 7

8 52. A type of material that is not found in an acetylene cylinder to help keep the acetylene under pressure is: a. Balsa wood fibers b. Long asbestos fibers c. Fine asbestos fibers d. Pinewood fibers 53. Which of the following flame types produces a flame that reaches 6300 degrees F? a. Neutral b. Oxidizing c. Carburizing d. Neutral-Carburizing 54. You must take your Oxy-acetylene welder out to the field. And, you did not have a choice; you had to lay the cylinders down. How long must you wait once you get out there before it is safe to use the equipment? a. 0 min. b. 30 min. c. 60 min. d. 120 min 55. This type of regulator is recommended for use at a workstation on a manifold system: a. Single stage b. Two stage c. Three stage d. Four stage 56. The maximum acetylene working pressure that can be used when cutting steel is: a. 5 psi b. 10 psi c. 15 psi d. 30 psi 57. In order to protect your eyes from the light emitted from an oxy-acetylene flame, the operator should use at minimum a: a. 3 shade lens b. 4 shade lens c. 5 shade lens d. 6 shade lens 58. When shutting off the oxyacetylene flame during the day, the valve to close first is the: a. Oxygen b. Acetylene c. It really does not matter; they can be shut down in any order. 59. Complete combustion of one volume of acetylene gas requires: a. One volume of oxygen. b. 1.5 volumes of oxygen. c. 2 volumes of oxygen. d. 2.5 volumes of oxygen. 8

9 60. Assume you have just purchased the hoses and regulators for an oxyacetylene welder. The hose that would be used to contain the oxygen would most likely be in color and the fittings would have hand threads. a. Red; left-hand b. Red; right-hand c. Green, left-hand d. Green, right-hand 61. The oxyacetylene hose that you are using has become cracked and you have decided to replace it with a new one. The next step you should follow after connecting the hoses to the regulators is: a. Attach the torch body b. Attach the blowpipe at the same time as the torch body c. Purge gas through the lines of talcum powder and then connect the torch body, etc. d. It does not matter connect it up! 62. In order for one to perform fusion welding when oxy acetylene welding, the following rod(s) are needed: a. mild steel rod b. coat hangers work ok, just use a coat hanger c. a brazing rod should be selected for fusion welding d. The metal plates that you are welding on can be positioned in such a way that you use bronze filler rod. 63. An advantage that a flashback arrester has over a check valve is that: a. Stops reverse flow of gas b. Extinguishes the flame c. Shuts off the fuel supply d. Cost- a flashback arrester is cheaper 64. The type of material that is used to construct the valve on an oxygen cylinder is: a. Mild Steel b. Bronze c. Stainless steel d. Aluminum 65. You have a ¼ piece of angle iron to cut with the oxy-acetylene welder. The tip size that will be best suited is: a. 00 b. 0 c. 1 d Which of the following angles (relationship of welding tip to work) is 15 degrees? a. lead angle b. work angle c. rod angle d. blowpipe angle 9

10 Repair & Maintenance 67. What would you use to protect and restore wooden parts? a. used motor oil b. linseed oil c. wood stain d. gasoline 68. A standard 16 penny nail is how long? a. 3 inches b inches c. 3.5 inches d. 4 inches 69. A plane iron wood chisel should be sharpened to what degree measurement? a. 29 b. 45 c. 80 d. 118 Figure 1 2x4 2x6 2x8 70. What would be the actual width of the standard lumber sized boards in Figure 1 if laid side by side in the floor of a feed bunk? a. 15 1/2 inches b. 16 inches c. 16 1/4 inches d. 18 inches 71. A cold chisel can be used for a. Cutting only mild steel b. Cutting only rock c. Cutting both mild steel and tempered steel d. Cutting only tempered steel 72. For drilling into metal, what is the recommended rpm for a 1/8 inch drill bit? a. 300 rpm b. 540 rpm c. 1000rpm d rpm DIAMETER RECOMMENDED RPM'S DIAMETER RECOMMENDED RPM S 1/8 (3.18mm) 2,500 3/8 (5.52mm) 1,250 3/16 (4.76mm) 2,250 7/16 (11.1mm) 1,000 ¼ (6.35mm) 2,000 ½ (12.7mm) 950 5/16 (7.94mm) 1,500 9/16" (14.28mm)

11 73. What is the most common source of power for portable hand power tools? a. Battery b. AC Power c. pneumatics d. hydraulics 74. Which of the following is not a reason to sand wood cross-grain? a. if boards are uneven b. if extremely rough boards are encountered c. if a finished surface is desired d. if a coat of paint must be removed 75. A hammer drill would be used on which of the following materials? a. cast iron b. cold metal c. concrete d. wood 76. A flaring tool is used to do what? a. to flare airport runways b. trimming animal hooves c. light a propane torch d. expand the ends of soft copper tubing 77. In your high school shop class, what is the first step in dressing a grinding wheel? a. obtain protective gloves b. obtain a wheel type grinding wheel depressor c. obtain instructor s permission d. turn on the grinder 78. The cutting edge of a wood chisel has a concave edge. A concave tool edge. a. is straight b. curves in c. curves out d. is pointed 79. An example of low quality paint pigment is? a. Aluminum b. Calcium c. Titanium d. Zinc 80. A 6x2x1 oil stone used for sharpening knives is called. a. An axe stone b. A bench stone c. A common stone d. A slip stone 11

12 81. To temper steel you must: a. Hammer the steel very hard b. Place it under at least 40 psi of pressure c. Heat and cool steel quickly d. Heat and cool steel slowly 82. A dado head is a. A special blade used to cut curves or special angles b. Safety guard on radial arm saw c. The bottom end of a tap d. None of the above 83. When tapping threads to the bottom of a blind hole, the tap order should be: a. Bottoming tap, plug tap, taper tap b. Plug tap, bottoming tap, taper tap c. Taper tap, bottoming tap, plug tap d. Taper tap, plug tap, bottoming tap Tractor Power 84. On a front wheel assist tractor what is the common percent at which the front wheels pull compared to the rear? a. 5% faster in front b. 5% slower in front c. 10% faster in front d. 3% slower in front 85. What is the advantage of a high pressure common rail fuel system (HPCR)? a. Varying pressure at individual injectors b. Equal pressure at all injectors c. Fewer moving components d. Extended injector life 86. When operating a powershift transmission is the use of the engine clutch required between gears? a. Yes b. No c. Required at times d. Required traveling uphill 87. What does MFWD stand for? a. Manual front wheel drive b. Mechanical front wheel drive c. Makes foam while driving d. Manual fold winged disk 12

13 88. What are the two most common types of air conditioning refrigerants used in mobile vehicles? a. R-12 & R-134D b. R-12 & R-134A c. R-134A & R-22 d. R-12 & R What does SCV stand for? a. Starter coil voltage b. Secondary centering valve c. Secondary control valve d. Selective control valve 90. Farm implements are required to have a SMV attached to them. What does SMV stand for? a. Slow motored vehicle b. Slow moving vehicle c. Standard machinery visor 91. These two 12 volt batteries are hooked parallel. How much voltage is at the starter? a. Square root of 225 b. 24 volts c. 12 volts d. The product of 12 * A farmer complains of low engine power in the field. What is a possible cause? a. Plugged fuel filter b. Plugged air filter c. Plugged A/C condenser d. Both A & B 93. What does a pyrometer gauge measure on a turbo charged diesel engine a. Exhaust temperature b. Angle at which the turbo fins are running c. Speed of the turbo d. Boost pressure of the turbo 94. Black smoke form a diesel engine is an indication of what? a. More power b. Internal coolant leak c. Raw unburned fuel d. All the above 13

14 95. In Missouri diesel fuel used for the farm is non-taxable. There is an additive added to farm fuel so it is visually seen as farm fuel. What is the additive? a. Blue dye b. Green dye c. Red dye d. Orange dye 96. What State made it a law in 1919, that all tractors sold in the State had to be tested? a. Iowa b. Nebraska c. Kansas d. Illinois 97. Which of these regulate the speed of the engine and was invented by James Watt? a. Starter b. Carburetor c. Cam Shaft d. Governor 98. Which one of these is not an advantage of Dual Rear Tires? a. Give more contact with the ground b. Reduce Slippage c. Increases Ground Speed d. Increases overall flotation 99. Which one of these following lever colors is used signify the PTO and auxiliary power? a. Green b. Yellow c. Red d. Black 100. ROPS are designed and engineered to comply with SAE, ASAE, ISO and Federal Standards. A ROPS is engineered to mount on a specific tractor model. It is designed to work in conjunction with the tractor's mounting brackets and main frame. This provides a structure that is not too stiff, but at the same time strong enough to withstand the loads generated by what? a. rollover b. loader c. blade d. field implement 14