ASNT LEVEL 3 BASIC MATERIALS &
PROCESSES EXAM 2025 QUESTIONS
AND ANSWERS
Fracture is a type of material failure. Of the following which is another type of material failure?
- ANS Permanent deformation.
Which of the following statements best differentiates between a defect and a discontinuity? -
ANS Discontinuities can propagate and become defects.
Nondestructive testing is often differentiated from other measurements or inspection
techniques in that: - ANS NDT involves indirect tests related to some other quality or
characteristic of material.
What are the functions of NDT? - ANS Identifying and sorting of material.
Identifying of material properties.
Ensuring absence of faults or defects that could cause a part to fail.
An important basis for the success of fracture control design procedures is: - ANS The need
to ensure that unexpected flaws of some critical size are not present when the component
enters service.
If properly used, NDT can assist in fracture control by: - ANS Providing an accurate evaluation
of the number and type of discontinuities that exist in a material .
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,A statement that a particular experiment produced a 0.9 probability of detection with a 95%
confidence level means that: - ANS There is a 5% probability that the probability of detection
is overstated.
Most solid metals and plastics that have reasonable strength at room temperature are called: -
ANS Engineering materials.
Material properties, as used in design, are most frequently determined by: - ANS Materials
testing.
Even at the early stages of product planning, NDT should be considered because: - ANS The
design of the part should permit easy access to critical areas for later inspection.
which of the following material properties are of most concern if corrosion resistance is
essential? - ANS Chemical properties.
Which of the following is true relative to the comparison of the properties of aluminum-based
alloys and iron-based alloys? - ANS Iron can exist in several different crystalline structures
and its properties can be controlled by heat treatment.
Tensile test are conducted on specimens from a newly developed alloy in order to determine
the ultimate tensile strength of the material. Such tests are referred to as: - ANS Destructive
tests.
A bar that is 2 in. long, 2 in. wide and 1 in. thick is subjected to a tensile load acting along the
lenght of the bar of 36000 lbs. What is the tensle stress within the bar? - ANS 18000 psi.
What is Point B on the Stress-Strain diagram where it first starts to curve? - ANS Elastic limit.
Stress-Strain diagram, which of the following ranges indicates the affect of work hardening, to
its maximum, caused by plastic flow of the material during a tensile load? - ANS Deformation
rate to the ultimate strength
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, On the Stress-Strain diagram, the points represented by E and F would be closer together if the
material being tested were: - ANS Less ductile.
The modules of elasticity, or Young's modules, is related to the material's relative: -
ANS Stiffness and yield strength.
Which of the following materials is typically considered when the application only requires high
compressive strength? - ANS Cast iron.
A fatigue failure can often be prevented by using NDT to: - ANS Detect surface discontinuities
that could be stress risers.
Which of the following tests uses a pendulum to break a specimen that is notched and
supported on both ends, with the results of measuring energy absorption? - ANS Charpy test.
What is a S-N curve? - ANS An endurance limit curve diagram.
Direct hardness test provide a measure of a material's ability to resist: - ANS Surface and
near-surface penetration.
Under ordinary usage, metals exist as: - ANS Crystalline solids.
The term body-centered cubic BCC, face-centered cubic FCC and hexagonal close-packed HCP
all refer to the: - ANS Lattice structures that make up unit cells in a solid metallic structure.
The process of returning ductility to cold-worked low-carbon steel is called: -
ANS Recrystallization.
Many metals exhibit an increase in strength caused by plastic flow beyond the elastic limit. This
effect is called: - ANS Work hardening.
3 Copyright ©BRIGHSTARS ALL RIGHTS RESERVED 2025
PROCESSES EXAM 2025 QUESTIONS
AND ANSWERS
Fracture is a type of material failure. Of the following which is another type of material failure?
- ANS Permanent deformation.
Which of the following statements best differentiates between a defect and a discontinuity? -
ANS Discontinuities can propagate and become defects.
Nondestructive testing is often differentiated from other measurements or inspection
techniques in that: - ANS NDT involves indirect tests related to some other quality or
characteristic of material.
What are the functions of NDT? - ANS Identifying and sorting of material.
Identifying of material properties.
Ensuring absence of faults or defects that could cause a part to fail.
An important basis for the success of fracture control design procedures is: - ANS The need
to ensure that unexpected flaws of some critical size are not present when the component
enters service.
If properly used, NDT can assist in fracture control by: - ANS Providing an accurate evaluation
of the number and type of discontinuities that exist in a material .
1 Copyright ©BRIGHSTARS ALL RIGHTS RESERVED 2025
,A statement that a particular experiment produced a 0.9 probability of detection with a 95%
confidence level means that: - ANS There is a 5% probability that the probability of detection
is overstated.
Most solid metals and plastics that have reasonable strength at room temperature are called: -
ANS Engineering materials.
Material properties, as used in design, are most frequently determined by: - ANS Materials
testing.
Even at the early stages of product planning, NDT should be considered because: - ANS The
design of the part should permit easy access to critical areas for later inspection.
which of the following material properties are of most concern if corrosion resistance is
essential? - ANS Chemical properties.
Which of the following is true relative to the comparison of the properties of aluminum-based
alloys and iron-based alloys? - ANS Iron can exist in several different crystalline structures
and its properties can be controlled by heat treatment.
Tensile test are conducted on specimens from a newly developed alloy in order to determine
the ultimate tensile strength of the material. Such tests are referred to as: - ANS Destructive
tests.
A bar that is 2 in. long, 2 in. wide and 1 in. thick is subjected to a tensile load acting along the
lenght of the bar of 36000 lbs. What is the tensle stress within the bar? - ANS 18000 psi.
What is Point B on the Stress-Strain diagram where it first starts to curve? - ANS Elastic limit.
Stress-Strain diagram, which of the following ranges indicates the affect of work hardening, to
its maximum, caused by plastic flow of the material during a tensile load? - ANS Deformation
rate to the ultimate strength
2 Copyright ©BRIGHSTARS ALL RIGHTS RESERVED 2025
, On the Stress-Strain diagram, the points represented by E and F would be closer together if the
material being tested were: - ANS Less ductile.
The modules of elasticity, or Young's modules, is related to the material's relative: -
ANS Stiffness and yield strength.
Which of the following materials is typically considered when the application only requires high
compressive strength? - ANS Cast iron.
A fatigue failure can often be prevented by using NDT to: - ANS Detect surface discontinuities
that could be stress risers.
Which of the following tests uses a pendulum to break a specimen that is notched and
supported on both ends, with the results of measuring energy absorption? - ANS Charpy test.
What is a S-N curve? - ANS An endurance limit curve diagram.
Direct hardness test provide a measure of a material's ability to resist: - ANS Surface and
near-surface penetration.
Under ordinary usage, metals exist as: - ANS Crystalline solids.
The term body-centered cubic BCC, face-centered cubic FCC and hexagonal close-packed HCP
all refer to the: - ANS Lattice structures that make up unit cells in a solid metallic structure.
The process of returning ductility to cold-worked low-carbon steel is called: -
ANS Recrystallization.
Many metals exhibit an increase in strength caused by plastic flow beyond the elastic limit. This
effect is called: - ANS Work hardening.
3 Copyright ©BRIGHSTARS ALL RIGHTS RESERVED 2025
