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-
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Area of Reduction Formula
 Answer in %
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Formula to find e
 L=(length@0.2%) Lo=Length Original (Remember if it is a Strain then minus it my 0.00200)
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Formula for modulus of elacisity
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Formula for Tensile Strength
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Formula for Area of reduction
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Define Technology
application of science to provide society with things needed or desired.
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application of science to provide society with things needed or desired.
Technology
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Basic Categories of engineering materials
Polymers, Composites, Cermics, Metals
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Polymers, Composites, Cermics, Metals
Basic Categories of engineering materials
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Term of non crystalline structures
Amporphous
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Amporphous
Term of non crystalline structures
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Three types of Static stress
Tensile, compressive, shear
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Tensile, compressive, shear
Three types of Static Stress
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Regions of stress strain curve
Elastic and plastic region
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Elastic and plastic region
Regions of stress strain curve
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Inventor of interchangeable parts
Eli whitney
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Eli Whitney
Inventor of interchangeable parts
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Difference between consumer and capitol good
Consumer goods purchased directly by consumurs, capitol goods purchased by companies to produce goods.
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Consumer goods purchased directly by consumurs, capitol goods purchased by companies to produce goods.
Difference between consumer and capitol goods
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Three main types of crystal structures
Bcc, Fcc, HCP
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Bcc, Fcc, HCP
Three Main types of crystal structures
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Study of Measurements
Metrology
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Metrology
Study of Measurements
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Dimension
Indicates ideal part size
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Indicates ideal part size
Dimension
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Tolerance
Difference between max and minimum limits in a dimension
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Difference between max and minimum limits in a dimension
Tolerance
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both positive and negative,
Bilateral Tolerance
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Bilateral Tolerance
both positive and negative
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either positive or negative
Unilateral tolerance
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Unilateral tolerance
either positive or negative
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Accuracy
degree measure value
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degree measure value
Accuracy
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Precision
degree of repeatability
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degree of repeatability
Precision
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Measuring Instruments
Graduated and Non Graduated Calipers
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Graduated and Non Graduated Calipers
Measuring instruments
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Manufactruing
Transfomation, mater subject to forces, temperatures, and etc
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Transfomation, mater subject to forces, temperatures, and etc
Manufacturing
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Types of point defects pg 32
vacancy, ion pair, displaced ion
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vacancy, ion pair, displaced ion
Types of point defects
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Do more or less boundaries increase strength
yes
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most common test for studying stress strain relationship
tensile test
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tensile test
most common test for studying stress strain relationship
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Most common hardness test
Rockwell, brinell
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Rockwell, brinell
Most common hardness test
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True or false ductility is the ability of a material to plastically strain without fracture
True
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What is the transformation of raw mater into products of greater value by means of one or more processing operations
manufacturing
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Manufacturing
What is the transformation of raw mater into products of greater value by means of one or more processing operations
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Example of a amorphous material
glass plastic rubber
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glass plastic rubber
Example of a amorphous material
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Difference between engineering stress and true stress pg42
First is important in design other is in important in manufacturing
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First is important in design other is in important in manufacturing
Difference between engineering stress and true stress pg42
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Alloy
Combination of pure elements
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Combination of pure elements
Alloy
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Three classes of Elements
Metal Non Metal, Metalloids
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Metal Non Metal, Metalloids
Three classes of elements
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Basic structural unit of matter
Atom
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Atom
Basic structural unit of matter
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Imperfections in crystallin solids
Point defect, line defect, surface defect
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Bonding that holds polymers together
covalen bonding
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Covalent bonding
Bonding that holds polymers together
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Oem
Original Equipment Manufacturer
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Original Equipment Manufacturer
Oem
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Hookes law govers which region of the stress strain curve
Elastic Region
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Elastic Region
Hookes law govers which region of the stress strain curve
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Ability of a material to maintain hardness at high temperatures
Hot Hardness
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Hot Hardness
Ability of a material to maintain hardness at high temperatures
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Equation of Engineering Stress
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Equation of Engineering Stress
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Equation for modulus of elasticity
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Equation for modulus of elasticity
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Why is 2 % offset used on the stress strain curve
is a strenth characteristic of the material (only strain)
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is a strenth characteristic of the material (only strain)
Why is 2 % offset used on the stress strain curve
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True of false Elastic limit is the yield stregth
True
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Ultimate Stregth is the tensile stregth true or flase
True
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In a test specimen, localized elongation, when the load begins to decline and the are narrows down, is called what
necking
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necking
In a test specimen, localized elongation, when the load begins to decline and the are narrows down, is called what
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Profilometer measures what
a surfaces profile
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surfaces profile
Profilometer measures what
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Why is a gage called go/no go
one gage limit allows the part to be inserted, whereas the other limit does not
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one gage limit allows the part to be inserted, whereas the other limit does not
Why is a gage called go/no go
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Indentation hardness test
Brinell Vickers Rockwell Knoop Sclerscope
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Brinell Vickers Rockwell Knoop Sclerscope
Indentation hardness test
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Hardness test is mesure of
resistance to permanent damage
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3 Identers
Cone shaped, small diameter ball, hammer
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Cone shaped, small diameter ball, hammer
Indenters
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Minor load aplied when a
major load is
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High rockwell numbers represent
hard materials and lows represent soft materials
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Rockwell testing scaless
B or C
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B or C
Rockwell testing scaless
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Astm
American society of testing and materials
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American society of testing and materials
Astm
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Indenter for hard cast iron
cone
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Rockwell Scale c measures
cast iron stell alloy high c and annealed
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cast iron stell alloy high c and annealed
Rockwell Scale c measures
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Rockwell B scale measures
nickel, titanium, stainless steel
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nickel, titanium, stainless steel
Rockwell B scale measures
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Industries Msi Serves
Steel Manufacturing, Consulting, Forgin, Heavy Equipment, Medical
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Steel Manufacturing, Consulting, Forgin, Heavy Equipment, Medical
Industries MSi serves
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Atom held together by what bond
molecular
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Molecular
Atom held together by what bond
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Units cells that generally form ductile metals
Fcc
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FCC
Units cells that generally form ductile metals
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Properties of metals
high electrical, thermal conductivity , oraqueness, reflectivity
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high electrical, thermal conductivity , oraqueness, reflectivity
properties of metals
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Polymers made up of repeating
mers
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mers
Polymers made up of repeating
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polymers usually made up of
carbon
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properties of polymers
low density, high electircal resistivity, low thermal conductivity
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low density, high electircal resistivity, low thermal conductivity
properties of polymers
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Ceramics have a crystallin structure called
glass based on silica
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glass based on silica
Ceramics have a crystallin structure called
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properties of ceramics
Stifnes, brittlenes, electrical insulation, refractoriness, chemical inertness
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Stifnes, brittlenes, electrical insulation, refractoriness, chemical inertness
ceramics
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ANSI stands for
American National Strandards Institute
-
American National Strandards Institute
ANSI stands for
-
ASME stands for
American society of mechanical engineers
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American society of mechanical engineers
ASME
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Asme y14.5
new standard of dimensioning as a 2009
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new standard of dimensioning as a 2009
Asme y14.5
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