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Agricultural Engineering
Agriscience
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Careers In Agricultural Engineering
Ag. Safety Engineer
Tractor Mechanic
Machinery Assembler
Irrigation Engineer
Lawn Tractor Mechanic
Ag Equipment Designer
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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
1. Keep the shop clean1. Prevents tripping and related injury
2. Remove unnecessary hazards1. Example- oily rags
3. Make sure all safety shields are in place
4. Do not use broken equipment
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Principles of Safety
4. Wear appropriate protective clothing and devices
1. Safety glasses and goggles to protect against dust and flying objects
2. Steel toed shoes
3. 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 TriangleComponents necessary for a fire to take place
1. Fuel Any combustible material that will burn
2. Heat Most material will burn if they are made hot
3. 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
C
A
B
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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
1. Flat scale- looks like a ruler
2. 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
1. Top
2. Side or end
3. 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 ¼”=1’ 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 =
BF =96
12= 8 BF
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Board Feet
Assignment: Calculate the board feet required to build our class
project (24) 2’’X6’’X12’ (4) 2’’X6’’X10’ (8) 2’’X4’’X10’