In which metal forming process, the metal is deformed at room temperature? a. Hot working. b. Galvanizing C. Anodizing. d. Cold working.

Q: d) Plastic forming where uniaxial tensile and compression stress occurs in the material method is…

A: for d).In plastic deformation process in wire drawing and in deep drawing uniaxial tensile stress is…

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

A:

Q: When EAC processes are active, under what condition does final fracture occur?

A: The EAC or Environmental Assisted Cracking is the process in which a machine part gets fail due to…

Q: Process used to improve fatigue resistance of the metal by setting up compressive stresses in its…

A: Cold Peening or Shot Peening: It is a cold work process used to prevent parts from fatigue and…

Q: what are the difference between impact testing and tensile testing

A: Both test are use to measure the properties of a material.

Q: What does shear strains cause?

A: Answer Shear Strain : it is the angular displacement from the original position

Q: Discus the impact of each defect on material properties.

A: The main defect in a material are point, line, and surface defects. These defects are crystalline…

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: When does impact occurs?

A: The impact is defined by when two colliding bodies interact with each other for a very little…

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: For machine metals chips break due to the ----of the word pieces metal material? -Toughness…

A: No option is correct.

Q: What is the boundary layer lubrication, how it affects the movement of metal parts?

A: Boundary layer lubricant: The boundary layer lubricant is the thin molecular film of lubricant which…

Q: What is external force?

A: Answer : Force - It is an effect which changes or try to change the state of a body.

Q: A. What is the amount of cyclic acceptable for 1045 steel and 2014 T6 Aluminum alloy material if a…

A: given; A. What is the amount of cyclic acceptable for 1045 steel and 2014 T6 Aluminum alloy material…

Q: All other conditions being the same which metal would be more plastic and ductile a fine grained…

A:

Q: As a crack advances, what happens to the stiffness of the cracked body? What happens to the…

A: from the above graph For condition one we can say that Stiffness decreases when the crack advances.

Q: Explain about metal bench work

A: Bench work has its own essential position in all engineering works. In the mechanized workshops,…

Q: Materials, properties and testing Describe the effect bend testing have on the physical properties…

A: Bend testing :-

Q: Stresses applied to plastically deform the metal are usually compressive. O F

A: To get the material plastically deformed it is necessary that stresses are applied beyond the…

Q: What is the permanent deformation?

A:

Q: Which metal often does not have a well-defined yield point and which procedure is suitable to yield…

A: Answer : Yield point : It is defined as that point after which material does not regain its original…

Q: In which process, a heavy hammer blows the work material to deform its shape? a. Extrusion. b.…

A: a) Extrusion: In this, the workpiece is compressed or pushed into the die opening to take the shape…

Q: If cracks are present in the metal, they are removed through cold working. Select one:

A: Cold working processes are used to shape the metal with minimum loss below the recrystallization…

Q: When a material breaks suddenly with no sign of deformation, what is it said to be?

A: Brittle Material

Q: Establish metal and non-metallic material properties using destructive and non-destructive test…

A: Metal and non metallic material properties using destructive and non destructive test methods

Q: What is maximum deformation?

A: Given Deformation To find Maximum deformation

Q: What would be the result of the Yielding of the material?

A: In stress-strain curve of material the yield point is the point of elasticity. Yield points shows…

Q: When does stress concentrations become important?

A: Stress concentration is very important in the case of cyclic loading. stress concentration leads to…

Q: tensile strength

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

Q: Describe when and why bend testing (flexural testing) is most advantageous.

A: Flexural testing is done to determine the flexural modulus or flexural strength of the material. In…

Q: 13. What are the main guidelines for choosing materials in case of sliding wear.

A: Guidelines for choosing materials in case of sliding wear are as follows -  Sliding wear is defined…

Q: A cleaving failure results from which type of stress test? а.

A: A cantilever beam , is a beam having one free end and one fixed end. The most heavily loaded section…

Q: How did temperature affect the toughness of the specimens?

A: temperature affecting the strengths of the toughness . IMPACT TOUGHNESS        Toughness is the area…

Q: What is Residual Stress?

A: Whenever a body is deformed beyond the elastic limit it is unable to regain its initial shape. Due…

Q: A method of determining the result of heat treatment as well as the state of a metal prior to heat…

A: Solution:   Heat Treatment of metals is done to enhance their mechanical, physical and chemical…

Q: Materials, properties and testing Describe the effect bend testing have on the mechanical properties…

A: A bend test is a technique for measure stiffness and yield properties of certain materials. Bend…

Q: What is tensile testing?

A: Tensile testing is a testing of the specimen in which load are applied at the ends of the specimen…

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: Describe working and environmental conditions that lead to failure for a product made from material…

A: working and environmental conditions that lead to failure for a product made from material from each…

Q: Discussions Why is a minimum thickness of at least ten times the depth of the impression required in…

A: Given: Discussions Why is a minimum thickness of at least ten times the depth of the impression…

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: Define Hooke's Law, Limit of Proportionality and Yield Point

A: To define Hooke's Law, Limit of Proportionality and Yield Point

Q: -What are the uses of the impact test?

A: Impact Test Objectives : The main objective of impact test is to measure dynamic toughness and notch…

Q: 5) Which of the following statement(s) is/are correct? i. The lower temperature limit for…

A: Both the statements are correct

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: What is internal force?

A: Generally, Internal forces are generated due to external forces in the materials which is under…

Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.