jeopardy · test where the dog-bone sample starts to get thinner, just prior to breaking? $100...
TRANSCRIPT
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Materials Jeopardy
Materials Manuf.
Process Recycling
Material Testing
Key Words
Q $100
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Q $300
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Final Jeopardy
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$100 Materials
Of the five major material categories
reviewed in class, which one is best
known for its resistance to heat?
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$100 Materials
Ceramics
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$200 Materials
Of the five major material categories
reviewed in class, which one is best
known for its ability to conduct heat?
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$200 Materials
Metals
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$300 Materials
Of the five major material categories
reviewed in class, which one is widely
used in today’s manufactured plastics?
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$300 Materials
Polymers
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$400 Materials
What is the name for materials that
are made from 2 or more different
materials?
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$400 Materials
Composite
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$500 Materials
What is the name of the material
category that is used to manufacture
bamboo clothing and socks?
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$500 Materials
Organic
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$100 Manufacturing
Describe what an additive
manufacturing process is and provide
an example.
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$100 Manufacturing
Additive processes add material to
a part or object. Examples include
welding, soldering, brazing,
and 3D printing
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$200 Manufacturing
Describe what an subtractive
manufacturing process is and provide
an example.
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$200 Manufacturing
Subtractive processes remove
material from a part or object.
examples include drilling, milling,
cutting.
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$300 Manufacturing
What three factors determine the
selection of a material for
manufacturing purposes?
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$300 Manufacturing
Material selection is based on:
1) application,
2) material properties needed,
3) budget.
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$400 Manufacturing
What type of manufacturing shop
produces a large variety of products in
small quantities?
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$400 Manufacturing
Job Shop
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$500 Manufacturing
The type of shop that uses an
assembly-line method to build cars and
trucks would best be described as a
________________.
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$500 Manufacturing
Linked-cell shop
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$100 Recycling
What is the significance or the 3
arrows in the recycling symbol –
what do they stand for?
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$100 Recycling
The first arrow represents the consumer gathering the
recyclable materials to be recycled.
The second arrow represents the manufacturer
recycling the materials to create new products.
The third arrow represents the consumer buying
products made from recycled materials.
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$200 Recycling
What does the number in the recycling
triangle mean?
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$200 Recycling
It indicates the type of resin or
plastic that is used to create the
recyclable product.
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$300 Recycling
Provide 2 specific examples of recycling
organic materials, including the original
material and a recycled application.
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$300 Recycling
Paper – recycled to make new paper.
Yard Waste – recycled to make mulch or
pet bedding.
Oils, grains – burned for fuel.
Food scraps – used for compost.
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$400 Recycling
What does this symbol mean?
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$400 Recycling
The product/item can be recycled.
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$500 Recycling
What recycling symbol number would
you find on a grocery store plastic bag?
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$500 Recycling
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$100 Material Testing
What is the name of the part of a tensile
test where the dog-bone sample starts
to get thinner, just prior to breaking?
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$100 Material Testing
Necking
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$200 Material Testing
What is the name
for the area under
the curve as shown
by the blue bracket
and what does it
mean?
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$200 Material Testing
Plastic Deformation: Unrecoverable elongation
beyond the elastic limit.
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$300 Material Testing
Find stress at the
proportional limit of
the test sample:
Area = 0.02 in2
Original length = 2”
Include proper unit!
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$300 Material Testing
35,000 psi
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$400 Material Testing
What is the Modulus of Elasticity for a
material that has a stress value of
35,000 psi and a strain value of .0125
and a cross-sectional area of .025”?
Answer must include correct unit!
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$400 Material Testing
2,800,000 psi
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$500 Material Testing
Find strain at the
proportional limit of
the test sample:
Original length = 2”
Area = .03 in2
Include proper unit!
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$500 Material Testing
.0125
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$100 Key Words
The ratio of force acting over a unit of
cross-sectional area in material testing.
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$100 Key Words
Stress
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$200 Key Words
The ratio of stress to strain in material
testing. Also, defines the stiffness of an
object based on its composition and/or
chemical properties.
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$200 Key Words
Modulus of Elasticity
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$300 Key Words
The change in length of a material or
object in some direction, per unit of
original length.
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$300 Key Words
Strain
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$400 Key Words
During material tensile testing, the point
at which the deformation is no longer
proportional to the applied force.
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$400 Key Words
Proportional limit
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$500 Key Words
The maximum stress that a material can
withstand without permanent
deformation.
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$500 Key Words
Elastic Limit
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Final Jeopardy Calculate the force on the sample at the
yield point and rupture point.
Test sample area = .2in2
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Final Jeopardy Answer
Rupture point force = 6,000 lb.
Yield point force = 9,400 lb.