2. List any four reasons why factor of safety is necessary while choosing the material.

Q: Which of the following material has minimum Indentation diameter? Select one: Mildsteel Aluminium…

A: As we know that,  Brinell hardness no. (BHN)∝ 1Indentation area (or Indentation dia.)

Q: Which material/metal is the stiffest based on the following data provided and why?

A: Concept: 1) Stiffness is ability of material to resist deformation against applied load.  2) For the…

Q: Name five elements that should generally be removed from steel to improve toughness.

A: In steel there are various types of the alloying element which can improve and reduce some specific…

Q: Describe what happens if a tensile specimen is loaded just to the elastic limit and then unloaded.

A: A tensile specimens is sometimes a standardized sample cross-section. it's 2 shoulders and a gage…

Q: How does temperature effect a materials ability to resist a load?

A: Considering the variation of temperature while designing of any element is an important aspect.…

Q: List TEN (10) mechanical properties that a mechanical engineer should consider when selecting the…

A: The physical properties that material shows when the forces is applied on it is called mechanical…

Q: Q1. Which one statement most accurately describes the relative strength and toughness for materials…

A:

Q: Give a formula that can be used to determine a been allowance for a soft material

A: There is some typing mistake. It must be "bend allowance", not "been allowance".

Q: What is meaning of elasticity?

A: Elasticity - it is the tendency of an object or material.this can be measured by applying load on…

Q: Describe the strain and energy?

A: When a body is subjected to any tensile or compressive forces then the body undergoes deformation…

Q: What happens if the principal stresses at a critical point in the material?

A: First, define the critical point. Critical points are those points in the given plane where the…

Q: Define the term Stress Concentrations?

A: Stress concentration is a location in a member under load where the magnitude of stress is…

Q: How can the ductility of material be specified?

A: Ductility is the material’s property to undergo large plastic deformation (permanent type) after the…

Q: sticity?

A: given: What is modulus of elasticity?

Q: Give some examples of Ductile materials?

A: Ductile material, Ductile material is one which has considerable plastic (permanent deformation)…

Q: Which material should be chosen when high strength is required

A: Given: To define: Which material should be chosen when high strength is required

Q: 2. Name the three basic categories of materials. Give 1 example of each category.

A:

Q: How does point defect affects the property of a material?

A: To find : How does point defect affects the property of a material

Q: What does the modulus of the toughness of material represent?

A: The modulus of toughness is the measure of how much strain energy can a material absorb before the…

Q: Q\ What is the best material that has a very good Young modulus and low density?

A: The process of designing any physical thing includes the choice of materials. The major objective…

Q: Distinguish between the Brittle material and the Ductile material?

A: Brittle Materials: These materials elongate on the application of load to the materials. They can…

Q: Describe the theory of elasticity?

A: Theory of Elasticity When an external force is applied to the body, it starts to elongate, and as…

Q: Which of the four major material groups has the lowest thermal conductivity?

A: The four major material groups are :Metals, Non metallic organics, organics and polymers. Among…

Q: a. which one has a better stiffness? gold or tungsten? b. which one is more ductile? low carbon…

A:

Q: cent elongation of SAE 1040 ductile or a brittle material?

A: Given material-SAE 1040 hot rolled steel. To be find- Ultimate strength,yield strength and…

Q: Why do the Brittle materials fail in tension?

A: Brittle materials do not undergo significant plastic deformation. They thus fail by breaking of the…

Q: On what does the strength of a material depend?

A: The strength of the material depends on many factors like the nature of the material used, its…

Q: What happens if the material is isotropic?

A: Materials have certain properties like homogeneity, showing isotropic behavior, etc. Isotropy is…

Q: How does the resilience of this material compare to its toughness?

A:

Q: Q12. How would a creep profile on a brittle material looks like?

A: How would be creep profile on a brittle material.

Q: What is the equivalent stiffness?

A:

Q: List the top hardest materials and describe their hardness property and applications

A: Given Material To find Hardest material list Hardness and application of the materials

Q: With what is Stress associated and how?

A: Please Specify the question in more detail, sir.   But in general, it can…

Q: Fatigue life of a material is higher if it has,

A: The fatigue life of a material can be defined as the number of cycles that can be sustained by a…

Q: What is the Endurance or Fatigue limit?

A: Given Endurance limit To find Definition

Q: Which curve shown below (A or B) is for a BCC metal and why? A Brittle →More Ductile Temperabure…

A:

Q: Why is it important to make standards for the different building/engineering materials? (Tensile…

A: All things considered, we've been building two-stories wooden homes for millenia, so what's the…

Q: What is meant by the terms “Endurance Limit” and “Fatigue Limit”?

A: Endurance Limit: It is defined as the maximum value of completely reversed bending stress that a…

Q: How is Equation used to determine the shear modulus of elasticity of a material?

A: It can be used to explain how a material resists transverse deformations but this is practical for…

Q: Stress and strain: What are they and why are they used instead of load and deformation?

A:

Q: How are the materials classified as ductile or brittle?

A: Ductile material When the material undergoes plastic deformation before the failure of the material…

Q: What happens to the surfaces of a material when it is bent?

A: Consider the diagram shown below for the bending of the sheet metal.

Q: Define Tensile strength.

A: Given Data⇒ Tensile strength Problem statement⇒ Problem says Define Tensile strength.

Q: What happens when the material is stressed beyond the yield point?

A: Any material is subjected to various processes and follows a stress-strain curve. In this curve,…

Q: What are the tensile forces?

A: Tensile force is the force applied on a material which stretches the material. The tensile force…

Q: Differ between Constant Load and Cross-Sectional Area?

A: Constant load otherwise called Point load (P) is a force applied at a single infinitesimal point at…

Q: why specific rigidity is needed?

A: Specific rigidity is defined by the ratio of young's modulas to the density. The more accurate term…

Q: What is the neutral plane of a material that is being bent?

A: When the force applied on the beam perpendicular to the centroidal axis results bending in the beam.…

Q: A material is required as blade of a knife for making fish fillets. List what you would judge to be…

A: The design limiting property are:- Strength Deflection Metallurgical limit