Agricultural Engineering

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Agricultural Engineering

• Agriscience

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Careers In Agricultural Engineering
Ag. Safety Engineer
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Careers In Agricultural Engineering

• Engineering Careers
• Designers
• Four year degrees (B.S)
• Mechanical Careers
• Operators
• Majority are two year degrees
• Education varies with the type of working
  conditions

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Safety

• Objective
• Interpret personal safety hazards related to
  careers and work in the field of agricultural
  engineering

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Safety

• 50 of all farm related accidents involve working
  with machinery
• The definition of safety
• Developing an environment free from danger, risk,
  or injury
• Impossible to accomplish
• The 1 key to shop safety is the people who use
  it!

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Principles of Safety

• Keep the shop clean
• Prevents tripping and related injury
• Remove unnecessary hazards
• Example- oily rags
• Make sure all safety shields are in place
• Do not use broken equipment

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Principles of Safety

• Wear appropriate protective clothing and devices
• Safety glasses and goggles to protect against
  dust and flying objects
• Steel toed shoes
• Ear plugs where noise exceeds 90dB (decibels)

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Equipment and Tool Safety

• Hammers
• Make sure the handle of the hammer fits tightly
  on the head
• Do not strike a hard steel surface with a steel
  hammer (ex hammer vs. hammer)
• Always wear safety glasses
• Discard a hammer with a chipped or mushroomed
  face
• Replace loose or cracked handles
• Discard hammers with cracked claws or eye sections

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Portable Circular Saw

• Keep the fingers away from the trigger when
  carrying the saw
• Do not wedge the guard in the open position
• The blade rotates at a very high speed
• never place on a surface before the blade stops
• Prevent Kickback
• Do not start the saw with the blade touching the
  stock (wood)

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Safety Color Coding

• Development
• National organizations worked together
• American Society of Agricultural Engineers
• Safety Committee Of the American Vocational
  Association

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Safety Color Coding

• Red
• Areas of danger
• Safety switches
• Fire extinguishers
• Red Danger

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Safety Color Coding

• Orange
• Wheels
• Levers
• Knobs
• Orange Warning

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Safety Color Coding

• Yellow
• Wheels, levers, and knobs that adjust or control
  machines
• Yellow Caution

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Safety Color Coding

• Blue
• Out of Order
• Broken shop equipment
• Blue Information

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Safety Color Coding

• Green
• First Aid
• Safety Equipment
• Green Safety

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Fire Hazards

• The Fire Triangle
• Components necessary for a fire to take place
• Fuel
• Any combustible material that will burn
• Heat
• Most material will burn if they are made hot
• Oxygen
• Gas in the air that is not a fuel but must be
  present for material to burn

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Fire Hazards

• Fire Prevention
• Take away one of the components of the fuel
  triangle
• Fire will stop or will not start
• Safe storage of fuels
• Clean shop facilities

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Fire Extinguishers

• Know the kind of fire
• Class A- Ordinary combustibles
• paper, wood, cloth
• Class B- Fuel fires
• gas, oil
• Class C- Electrical fires
• Class D- Combustible metals

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Fire Extinguishers
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Fire Extinguishers

• Smothering a fire
• Best used of a person whose clothes are on fire
• Wrap the person in a blanket to cut off the
  oxygen to the fire

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Planning An Agricultural Project

• Blueprints are used to plan projects
• Simple designs
• Sharp lead pencil with an eraser
• Protractor
• Ruler (12)
• Compass

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Planning An Agricultural Project

• Detailed plans
• Drawing board to attach paper
• Masking tape
• T square for drawing horizontal lines
• Right triangle for vertical lines
• Scale
• Instrument with increments shortened according to
  proportion
• Flat scale- looks like a ruler
• Triangular scale- three sided, but 6 scales

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Planning An Agricultural Project

• The basics of drawings
• Sketch
• Rough drawing with no demensions
• Pictorial drawing
• Shows all three views
• Top
• Side or end
• Front

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Planning An Agricultural Project
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Planning An Agricultural Project

• The basics of drawings (continued)
• A scale drawing represents objects in exact
  proportions
• If the scale is ¼1 then ¼ on the drawing
  would equal 1 foot on the object
• So. A 2 line on the drawing would equal what on
  the object?
• 8 feet
• Scale will vary depending on the size of the
  object

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Class Assignment Your group will construct a 6
foot picnic table using the materials
provided. Your grade will depend on how well you
follow the blueprint and how well you complete
the project.
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Planning An Agricultural Project

• Determining Materials
• Bill of material
• List and description of materials needed to
  complete a project
• BF board foot

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Board Feet

• Thickness (inches) X Width (inches) Length (feet)
• 12
• How many board feet are in a board 1 X 12 X 8?
• 1 X 12 X 8
• 12

BF
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Board Feet

• Assignment
• Calculate the board feet required to build our
  class project
• (24) 2X6X12
• (4) 2X6X10
• (8) 2X4X10