- Chemical Engineering Basics - Section 1
- Chemical Engineering Basics - Section 2
- Chemical Engineering Basics - Section 3
- Chemical Engineering Basics - Section 4
- Chemical Engineering Basics - Section 5
- Chemical Engineering Basics - Section 6
- Chemical Engineering Basics - Section 7
- Chemical Engineering Basics - Section 8
- Chemical Engineering Basics - Section 9
- Chemical Engineering Basics - Section 10
- Chemical Engineering Basics - Section 11
- Chemical Engineering Basics - Section 12
- Chemical Engineering Basics - Section 13
- Chemical Engineering Basics - Section 14
- Chemical Engineering Basics - Section 15
- Chemical Engineering Basics - Section 16
- Chemical Engineering Basics - Section 17
- Chemical Engineering Basics - Section 18
- Chemical Engineering Basics - Section 19
- Chemical Engineering Basics - Section 20
- Chemical Engineering Basics - Section 21
- Chemical Engineering Basics - Section 22
- Chemical Engineering Basics - Section 23
- Chemical Engineering Basics - Section 24
- Chemical Engineering Basics - Section 25
- Chemical Engineering Basics - Section 26
- Chemical Engineering Basics - Section 27
- Chemical Engineering Basics - Section 28


Chemical Engineering Basics - Engineering
Q1: Fatigue life is expected to increase byA increasing the size of the sample.
B smooth polishing of the surface of the sample.
C having compressive residual stresses at the surface.
D having tensile residual stresses at the surface.
ANS:C - having compressive residual stresses at the surface. Shock-resisting steels should possess high toughness. Toughness is the ability of a material to absorb energy and deform plastically before fracturing. In applications where shock loads or impact forces are expected, such as in the case of shock-resisting steels, high toughness is crucial to prevent catastrophic failure. Toughness allows the material to withstand sudden and severe loading without fracturing, which is essential for maintaining structural integrity and preventing brittle fracture under impact conditions. While other properties like hardness, tensile strength, and wear resistance are important in various applications, they may not be as critical for withstanding shock or impact loads. In contrast, toughness is specifically related to a material's ability to resist fracture under dynamic loading conditions, making it particularly important for shock-resisting steels. |


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