AMT 280: Verified Multiple Choice and Conceptual Actual Frequently Tested Exam
Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
The ability of a metal to be deformed without rupture What is plasticity?
Refers to its plasticity under tension or a pulling load,
which can be drawn or bent, or twisted into various What is ductility?
shapes without braking
Is the characteristic that allows a metal to be pound-
ed, compressed, or pressed into various shapes without What is malleability?
cracking or breaking
Refers to the ability of a material to deform under load
What is elasticity?
and return to its original shape
Also called a proportional limit, is the maximum amount of
deformation that a material can undergo and still return What is the elastic limit?
to its original shape
Is the opposite of malleability, one that cannot be visibly
What is brittleness?
deformed and will shatter and break under load
The resistance to penetration, cutting action or permanent
What is hardness?
distortion
An internal force that resists the deformation of a material
What is stress?
resulting from an external load
Tension, compression, shear, bending and torsion What are the five types of stress?
The result of a load which tends to pull apart or stretch the
What is tension?
material
The load presses together or tries to crush What is compression?
Two layers of material being pulled apart, two pieces
What is shear?
riveted or bolted together
A twisting force What is torsion?
f = P/A
,AMT 280: Verified Multiple Choice and Conceptual Actual Frequently Tested Exam
Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
f = stress, psi
P = force, lb What is the stress equation?
A = area, in^2
e = change in L/L
e = strain, in/in What is the strain equation?
change in L = change in length, in
L = the original length
When you see this diagram, what will the answer be?
All of the above
Label the parts of the diagram:
1. ultimate strength
2. yield strength
3. rupture
4. strain hardening region
5. necking region
What material is this?
Brittle
What material is this?
, AMT 280: Verified Multiple Choice and Conceptual Actual Frequently Tested Exam
Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
Elastic
Chemical properties determine its susceptibility to
corrosion
.
During the process of solidification, the atoms will arrange
space lattice themselves in an orderly manner called a
.
systems of atom arrangements are known
seven
to exist in metals.
Face-centered cubic, body-centered cubic, and
What are the three most used metal atom arrangements?
closed-packed hexagonal
Metal crystal structure and specific metal prop-
erties are determined by
metallic bonding-force
- , holding together the
atoms of a metal.
is usually tougher and stronger
fine metal
than one with a coarse grain.
The is attected by rate of cool-
size of grain
ing of the molten metal.
The casting method is known as "
", and involves carefully cooling
directional solidification
a cast metal part starting at one end to guarantee a par-
ticular orientation of its crystal structure.
Adding to a metal is
alloying elements
one way of introducing a crystal defect.
Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
The ability of a metal to be deformed without rupture What is plasticity?
Refers to its plasticity under tension or a pulling load,
which can be drawn or bent, or twisted into various What is ductility?
shapes without braking
Is the characteristic that allows a metal to be pound-
ed, compressed, or pressed into various shapes without What is malleability?
cracking or breaking
Refers to the ability of a material to deform under load
What is elasticity?
and return to its original shape
Also called a proportional limit, is the maximum amount of
deformation that a material can undergo and still return What is the elastic limit?
to its original shape
Is the opposite of malleability, one that cannot be visibly
What is brittleness?
deformed and will shatter and break under load
The resistance to penetration, cutting action or permanent
What is hardness?
distortion
An internal force that resists the deformation of a material
What is stress?
resulting from an external load
Tension, compression, shear, bending and torsion What are the five types of stress?
The result of a load which tends to pull apart or stretch the
What is tension?
material
The load presses together or tries to crush What is compression?
Two layers of material being pulled apart, two pieces
What is shear?
riveted or bolted together
A twisting force What is torsion?
f = P/A
,AMT 280: Verified Multiple Choice and Conceptual Actual Frequently Tested Exam
Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
f = stress, psi
P = force, lb What is the stress equation?
A = area, in^2
e = change in L/L
e = strain, in/in What is the strain equation?
change in L = change in length, in
L = the original length
When you see this diagram, what will the answer be?
All of the above
Label the parts of the diagram:
1. ultimate strength
2. yield strength
3. rupture
4. strain hardening region
5. necking region
What material is this?
Brittle
What material is this?
, AMT 280: Verified Multiple Choice and Conceptual Actual Frequently Tested Exam
Questions With Reviewed 100% Correct Detailed Answers
Guaranteed Pass!!Current Update!!
Elastic
Chemical properties determine its susceptibility to
corrosion
.
During the process of solidification, the atoms will arrange
space lattice themselves in an orderly manner called a
.
systems of atom arrangements are known
seven
to exist in metals.
Face-centered cubic, body-centered cubic, and
What are the three most used metal atom arrangements?
closed-packed hexagonal
Metal crystal structure and specific metal prop-
erties are determined by
metallic bonding-force
- , holding together the
atoms of a metal.
is usually tougher and stronger
fine metal
than one with a coarse grain.
The is attected by rate of cool-
size of grain
ing of the molten metal.
The casting method is known as "
", and involves carefully cooling
directional solidification
a cast metal part starting at one end to guarantee a par-
ticular orientation of its crystal structure.
Adding to a metal is
alloying elements
one way of introducing a crystal defect.
