Exac: Materials Exam Questions &
Answers (Grade A+)
material selection properties-what are the requirement for the
most suitable structural material? -
correct answer ✅the structural material that combine stiffness
and elasticity are considered the most suitable material.
material selection properties-elasticity? -
correct answer ✅The ability of a material to bounce back after
being disturbed
- the ability of the body to deform under stress, bend, stretch and
compress when the external forces are applied and return to its
original shapes when the forces are removed.
material selection properties-elastic limit? -
correct answer ✅Maximum stress that a material will withstand
without permanent deformation.
material selection properties-Ductile material -
correct answer ✅A material which can be drawn out into a wire.
This implies that plastic strain occurs under enough stress.
- the material that undergo plastic deformation before breakage are
called ductile material.
,Exac: Materials Exam Questions &
Answers (Grade A+)
material selection properties-plastic deformation -
correct answer ✅permanent deformation caused by strain when
stress exceeds a certain value
material selection properties-Brittle material -
correct answer ✅A material that undergoes little deformation
under increasing force, until it breaks suddenly. example glass
material selection properties-stiffness? -
correct answer ✅The resistance of an elastic body to deflection by
an applied force.
the force that is applied to the material to bring it to the elastic
limit.
material selection properties-what is dimension stability of the
material? -
correct answer ✅the property of the material to keep its
dimension properties especially when the direct affect of the
moisture content or atmosphere are applied to it. dimension ability
is important when considering material selection.
,Exac: Materials Exam Questions &
Answers (Grade A+)
material selection properties-water and vapor resistance -
correct answer ✅the resistance to water and vapour is an
important factor in selection of the material for construction.
material selection properties-thermal conductivity -
correct answer ✅The ability of an object to transfer heat
material selection properties-material selection and light, radiant
heat, transmission ? -
correct answer ✅the material property that reflect or absorb light
are important factors for deciding a material selection
the reflection or absorption of radiant heat should also be
considered in selecting the material.
material selection properties- what is density and hardness of a
material? -
correct answer ✅the ability to resist wear and abrasiveness.
durability of a material.
important factor when considering material section.
, Exac: Materials Exam Questions &
Answers (Grade A+)
material selection properties - combustion
combustion -
correct answer ✅the property of the material to resist
combustion.
-withstand exposure to fire.
-not produce toxic smoke/gases or smell.
material selection properties - colour, texture, scale , shapes -
correct answer ✅important factor considering design requirement
and presentation of the material.
many material are produces in certain shapes and sizes, it varries
with the manufacture little bit but relatively small. this is also a
factor to consider when selection of the material.
eg- bricks, stock dimension etc.
material selection properties? -
correct answer ✅elasticity
ductile material
stiffness
Answers (Grade A+)
material selection properties-what are the requirement for the
most suitable structural material? -
correct answer ✅the structural material that combine stiffness
and elasticity are considered the most suitable material.
material selection properties-elasticity? -
correct answer ✅The ability of a material to bounce back after
being disturbed
- the ability of the body to deform under stress, bend, stretch and
compress when the external forces are applied and return to its
original shapes when the forces are removed.
material selection properties-elastic limit? -
correct answer ✅Maximum stress that a material will withstand
without permanent deformation.
material selection properties-Ductile material -
correct answer ✅A material which can be drawn out into a wire.
This implies that plastic strain occurs under enough stress.
- the material that undergo plastic deformation before breakage are
called ductile material.
,Exac: Materials Exam Questions &
Answers (Grade A+)
material selection properties-plastic deformation -
correct answer ✅permanent deformation caused by strain when
stress exceeds a certain value
material selection properties-Brittle material -
correct answer ✅A material that undergoes little deformation
under increasing force, until it breaks suddenly. example glass
material selection properties-stiffness? -
correct answer ✅The resistance of an elastic body to deflection by
an applied force.
the force that is applied to the material to bring it to the elastic
limit.
material selection properties-what is dimension stability of the
material? -
correct answer ✅the property of the material to keep its
dimension properties especially when the direct affect of the
moisture content or atmosphere are applied to it. dimension ability
is important when considering material selection.
,Exac: Materials Exam Questions &
Answers (Grade A+)
material selection properties-water and vapor resistance -
correct answer ✅the resistance to water and vapour is an
important factor in selection of the material for construction.
material selection properties-thermal conductivity -
correct answer ✅The ability of an object to transfer heat
material selection properties-material selection and light, radiant
heat, transmission ? -
correct answer ✅the material property that reflect or absorb light
are important factors for deciding a material selection
the reflection or absorption of radiant heat should also be
considered in selecting the material.
material selection properties- what is density and hardness of a
material? -
correct answer ✅the ability to resist wear and abrasiveness.
durability of a material.
important factor when considering material section.
, Exac: Materials Exam Questions &
Answers (Grade A+)
material selection properties - combustion
combustion -
correct answer ✅the property of the material to resist
combustion.
-withstand exposure to fire.
-not produce toxic smoke/gases or smell.
material selection properties - colour, texture, scale , shapes -
correct answer ✅important factor considering design requirement
and presentation of the material.
many material are produces in certain shapes and sizes, it varries
with the manufacture little bit but relatively small. this is also a
factor to consider when selection of the material.
eg- bricks, stock dimension etc.
material selection properties? -
correct answer ✅elasticity
ductile material
stiffness
