ASNT Level 3 Basic Materials & Processes Questions And Answers Rated A+ New Update Assured Satisfaction

Fracture is a type of material failure. Of the following which is another type of material failure? - Answer-Permanent deformation. Which of the following statements best differentiates between a defect and a discontinuity? - Answer-Discontinuities can propagate and become defects. Nondestructive testing is often differentiated from other measurements or inspection techniques in that: - Answer-NDT involves indirect tests related to some other quality or characteristic of material. What are the functions of NDT? - Answer-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: - Answer-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: - Answer-Providing an accurate evaluation of the number and type of discontinuities that exist in a material . A statement that a particular experiment produced a 0.9 probability of detection with a 95% confidence level means that: - Answer-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: - Answer-Engineering materials. Material properties, as used in design, are most frequently determined by: - Answer-Materials testing.Even at the early stages of product planning, NDT should be considered because: - Answer-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? - Answer-Chemical properties. Which of the following is true relative to the comparison of the properties of aluminum-based alloys and iron-based alloys? - Answer-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: - Answer-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? - Answer-18000 psi. What is Point B on the Stress-Strain diagram where it first starts to curve? - Answer-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? - Answer-Deformation rate to the ultimate strength On the Stress-Strain diagram, the points represented by E and F would be closer together if the material being tested were: - Answer-Less ductile. The modules of elasticity, or Young's modules, is related to the material's relative: - Answer-Stiffness and yield strength. Which of the following materials is typically considered when the application only requires high compressive strength? - Answer-Cast iron.