Resistance of material against external force also refers to; А. Durability Strength C. Toughness D. Hardness B.
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A: Ans: Strain energy
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A: mobility of the mechanism is also called as degree of freedom of the mechanism.
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A: Basics of unit Units.
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A: Given:The deformation per unit length,
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- Q2. Answer the following questions 1. Classification types of steel 2. Classification types of hardness testToughness of a material is equal to the area under part of the stress-strain curve. Select one: O a. None O b. Elastic c. Both O d. Plasticq1: Describe tensile test in detail considering the steps. . define stress , strain (equation and units) . elasticity modulus, elastic and plastic zones . toughness, resilience of matiral Demonstrate stress strain curve for your answer
- The hardness of a material can be an indicator of its resistance to? Select one: O a. indentation O b. fatigue O c. bending O d. None of these options O e. elongationIal keu ou For a specimen with reported Rockwell B hardness number of RHB=93.8, the approximate value of tensile strength in MPa :Select one a. Cannot be determined b. 120 C. 655 d. 330 e. 100What value can not be found from the stress-strain graph? Please select one:a. Modulus of elasticityb. Disgracec. Toughnessd. Poisson ratioe. Yield strength
- Please make brief and clear definitions of the terms below. 6.Hardness7.Toughness8.Brittleness9.Stiffness10.DuctilityQ- which of fhe tool used for testing the straightnes of large Surface? D steel rule O-Try Square ®. straight edge O. foot rule -Which hardness tester uses asteel-ball indonter to measure the Penetration into ametel under asped fid load ? O webster hard ness tester D-Rockwell hand ness toster @ Brinell hurd ness tester ☺ vickers hardness tester.What type of indenter is used in a Rockwell 'C' hardness test? Select one: O a. rhombus shaped O b. None of these options O c. diamond cone O d. spherical steel ball
- :Modulus of Rigidity is torsion test, is similar to Select one a. Endurance limit in fatigue test b. NONE c. Young's modulus in the tensile test d. Poisson's ratio in Thin walled cylinders test e. Bulk modulus on the hydrostatic testO O O ....is method used for testing the hardness of brittle materials such as ceramics. and polymer materials. O Rockwell hardness Knoop hardness O Brinall hardness22. Define what is tensile strength? short definition 2-3. sentences.