Podcast
Questions and Answers
What is the unit of the given hardness number in Vickers Hardness test?
What is the unit of the given hardness number in Vickers Hardness test?
- HB
- HV (correct)
- HR
- BHN
Which of the following hardness tests uses a spherical or sphero-conical indenter?
Which of the following hardness tests uses a spherical or sphero-conical indenter?
- Charpy Impact Test
- Rockwell Hardness test (correct)
- Brinnell Hardness test
- Vickers Hardness test
What is the ability of a material to withstand shock loading?
What is the ability of a material to withstand shock loading?
- Yield Strength
- Ductility
- Impact Strength (correct)
- Tensile Strength
Which of the following hardness tests is used for most metals and uses a 10 mm steel or WC ball indenter?
Which of the following hardness tests is used for most metals and uses a 10 mm steel or WC ball indenter?
What is the formula for notch impact energy in Charpy Impact Test?
What is the formula for notch impact energy in Charpy Impact Test?
What is the first step in the Rockwell Hardness test?
What is the first step in the Rockwell Hardness test?
What is the approximate tensile stiffness of steel?
What is the approximate tensile stiffness of steel?
Which type of fracture occurs in materials that resist deformation?
Which type of fracture occurs in materials that resist deformation?
What is the term for the ability of a material to absorb energy and deform plastically without fracturing?
What is the term for the ability of a material to absorb energy and deform plastically without fracturing?
What is the purpose of hardness testing in material science?
What is the purpose of hardness testing in material science?
What is the name of the scale used to characterize the hardness of polymers?
What is the name of the scale used to characterize the hardness of polymers?
Which of the following materials is used as a reference mineral in the Mohs hardness scale?
Which of the following materials is used as a reference mineral in the Mohs hardness scale?
What is the relationship between the ultimate tensile strength (UTS) of a material and its Brinell hardness number (BHN)?
What is the relationship between the ultimate tensile strength (UTS) of a material and its Brinell hardness number (BHN)?
What is the term for the deformation of a material under tension, resulting in a localized reduction in cross-sectional area?
What is the term for the deformation of a material under tension, resulting in a localized reduction in cross-sectional area?
What does a tensile test primarily measure?
What does a tensile test primarily measure?
Which of the following is a characteristic of plastic deformation?
Which of the following is a characteristic of plastic deformation?
What is the modulus of elasticity (Young's modulus) equivalent to in a stress-strain curve?
What is the modulus of elasticity (Young's modulus) equivalent to in a stress-strain curve?
Which property measures a material's resistance to elastic deformation?
Which property measures a material's resistance to elastic deformation?
In the stress-strain curve, what does the symbol $\sigma_{0.2%}$ represent?
In the stress-strain curve, what does the symbol $\sigma_{0.2%}$ represent?
How is ductility commonly measured from the stress-strain curve?
How is ductility commonly measured from the stress-strain curve?
What does the ultimate tensile strength ($\sigma_{UTS}$) signify?
What does the ultimate tensile strength ($\sigma_{UTS}$) signify?
What type of test is a visual test (VT) considered as?
What type of test is a visual test (VT) considered as?
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