Vickers Hardness Number (HV) value is inversely proportional to a. Indentation mean diagonal b. All of the above c. Shape of indenter d. Force applied

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: 6. True or false? Hardenability is a qualitative measure of the rate at which hardness drops off…

A:

Q: Instruction: Explain briefly the difference between Annealing and NOrmalizing

A:

Q: Q2: Hooke's Law can be used in which region of the stress-strain diagram? Elastic Necking Inelastic…

A:

Q: Draw stress-stain curve with plastic and elastic deformation

A: To draw :  stress-stain curve with plastic and elastic deformation

Q: 5. Mention 4 differences between Charpy and Izod impact tests..

A: As per our guidelines, we are supposed to answer only first one question in case of multiple…

Q: Based on Figure Q10, the LOWEST toughness belongs to

A: Toughness is the ability of the material to withstand shock load. And toughness is…

Q: Describe the six most common tests used to identify material properties

A: Most common tests used to identify material properties:-

Q: Give 5 examples of Critical Damping, Over Damping, Under Damping.

A:

Q: Define the Temperature Scales?

A:

Q: Factor of safety is the ratio between yield stress to working stress for mild steel material.…

A: Yield stress is the value of the stress that indicates the plastic deformation is starts after…

Q: 4. To determine the upper and lower surface to beds ,we use. .type from ripple marks *

A: Given :-  To determine the upper and lower surface to beds ,we use ............type from ripple…

Q: 1- Which log is used to measure porosity accurately in oil and gas?

A:

Q: On a stress strain curve for structural steel, show various points like proportional limit, elastic…

A: Objective: To draw the stress-strain curve for steel, show points like proportional limit, elastic…

Q: Critically analyse the surface conditions necessary for major hardness tests.

A: A hardness test is run to check the suitability of the material. It qualifies the material to be…

Q: 12. True or false? In Brinell hardness test, the depth of indentation must not be too great relative…

A: Given that  True or false? In Brinell hardness test, the depth of indentation must not be too great…

Q: Describe the concept of finding toughness using impact testing machine.

A:

Q: Qi) Answer only Seren of the following multiple choice: 1- Green sand mold mean mixture of: a- Clay…

A: 1.Green Mould sand is a mixture of sand ,clay and water. Answer: Option c 2.Cores are made of high…

Q: When do stress concentrations occur?

A: Stress concentration, It is a location within an object where the magnitude of stress is high as…

Q: The shear strength of a metal is commonly determined in which one of the following tests: Group of…

A: The below table describes the determination of corresponding stress for a corresponding test.…

Q: Auto fretting method is used to increase strength of the material. Select one: O a. Compressive…

A: Answer is (a) Compressive strength

Q: 158) Which ones are used in mold making? A) clay and water B) sand-water-clay C) sand-water-resin D)…

A: 158) The sand,water and clay are used to make mold in casting so correct option is option B.   129)…

Q: Define conservative forces.

A: When a particle is moved from one point to another than in that case the force applied is called the…

Q: 14-In the Brinell hardness number The D2 equal to *

A: Brinell Hardness Number (BHN) : Brinell Hardness number is number which is proportional to the load…

Q: BSEN10045 is British standard for Brinell Hardness test Select one: True False

A: BSEN10045 is European standard for Charpy impact test

Q: When hardness is measured under dynamic loading conditions , it is known as hardness

A: When hardness is measured under dynamic loading conditions , it is known as hardness

Q: In the hardness test, answer the questions 1- What happens to the sample if its thickness is less…

A: Thickness of the specimen should be at least seven times of the depth of the indentation. It allows…

Q: tensile strength

A: when weight and energy is the criterion for design the then required material having high tensile…

Q: Q17: chemical properties such as: A: density b: impact c: hardness d: corrosion

A: Chemical properties: The properties of the substance which gives a chemical reaction,hence changes…

Q: Explain four safety features in doing Mechanical Integrity Tests?

A: Solution:

Q: Which one of the following is the Non destructive test a. Ultrasonic test b. Tensile test c.…

A: Non destructive test : Non destructive test is a testing and analysis technique used by industry to…

Q: Illustrate the three types of stress using any object found at home: tension, compression, shear.

A: We can observe so many examples in our daily life. Some examples are given below.

Q: Comparison: Indicate if , or = Better Stiffness: Gold Tungsten

A: Subject : material science

Q: ist the importance of the impact test and limitations.

A: given:

Q: Subcritical annealing can be done at higher temperature than full annealing. Select one: True False

A: In the given statement, it is mentioned that sub critical annealing can be done at higher…

Q: Find the best match for the following: v Brass v Cold working v Forging v Casting A. Window frame B.…

A:

Q: -Differentiate between the Eutectic and eutectoid.

A: Phase diagram: It is a graphic representation of the respective microstructure states of any alloy…

Q: Toughness is the property of a metal find by test. a. Tensile b. Creep O c. Impact С. d. Hardness

A: Charpy V notch impact test  Izod test  KIC test These tests measure the toughness of the metal.

Q: A material has an mean indentation diameter of 3.64 mm created by a 5 mm diameter Brinell Indenter.…

A: Given data Mean indentation diameter (d) = 3.64 mm Diameter of brinell indenter (D) = 5 mm Hardness…

Q: Which would be the most likely to measure for an inflated baloon? A. Shear modulus b  bulk modulus…

A: Which would be most likely to measure for an inflated balloon....... First and foremost what is…

Q: Brinell hardness tester 10 mm diameter steel ball ,3000 kg applied load indicated hardness value of…

A:

Q: (b) Dis s the three types of imperfections that are product. likely to be found in solid mild steel

A: (b) A solid mild steel product will have the following types of imperfections: Point defects Line…

Q: 1- In annealing, cooling is done in which of the following media:

A:

Q: Applications of Rockwell Hardness A – Scale, B-Scale, C-Scale.

A:

Q: Cementing is the process by which cement slurry is placed in the annulus, bonding the casing to the…

A: Answer is b) True

Q: What is a Brale penetrator and what hardness scale uses it?

A: The hardness of the material is defined as the properties of being material due to which it resists…

Q: True or false? Hardenability is a qualitative measure of the rate at which hardness drops off with…

A: Hardenability is a qualitative measure of the rate at which hardness drops off with distance into…

Q: Austenite (y) is soft, tough and high ductile True O False

A: When alpha iron heated then phase transformation occurrs from BCC to FCC. This FCC gamma iron is…

Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.