Which one of these may increase the amount of contact resistance?         Using air as a fluid for the gap instead of liquids       decreasing pressure for pressing the materials together       Lower temperature during matching of materials       All of the given       Higher surface roughness

Q: For selection of properties, what mechanical properties are required of the material used for…

A: The desirable properties railway lines are - 1. High strength 2. High wear resistance 3. Toughness…

Q: 3 l Two tensile samples were cut from a titanium ingot that was cooled very slowly, and under…

A: Tensile material such as titanium with single crystal  made from a ingot that is cooled very slowly…

Q: I need help answering questions 1,2, and 3 pertaining to the print attatched below.

A: 1stIn the given drawing there are 4 surface texture symbols.

Q: Materials creep significantly in extremely cold weather True or false

A:

Q: Welds machining tool marks and stress reversal such as those in rotating parts can cause a…

A: Welds machining tool marks and stress reversal such as those in rotating parts can cause a…

Q: Which one of the following materials has the highest modulus of elasticity: Group of answer choices…

A:

Q: Endurance limit is the stress level at which the materials fails at (industrially defined) infinite…

A: According to the given dataWe need to findCorrect optionThat fits to the defination of the endurance…

Q: Name the mechanical or optical device or the measurement and calculating the strain?

A: Strain refers to the deformation produced in the body per unit length or dimension in response to…

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: 2###4### Industrial Pipes Should the reinforcement rings for pipe taps have at least the same area…

A: The question is asking whether the reinforcement rings for pipe taps should have at least the same…

Q: why do we physically mark gauge length on the samples before the test even though the machine is…

A: Solution: Given Data: Tensile Testing Machine   To Find: (a) Why do we physically mark gauge length…

Q: What is the aerodynamic (equivalent) diameter of an airborne spherical aluminium particle with the…

A: From the given data,material of particle is aluminum so, ρal. = 2.7 g/cm3da = here ds = 3 micro…

Q: You are a defect analyst, the fracture surface appears relatively smooth to the eye, but under…

A: Option A is correct.

Q: Which statement/s is/are true about deformation?   It is the ability of the material to store…

A: GIVEN TOPIC- DEFORMATION OF MATERIALS SELECTION OF TRUE MEANING OF DEFORMATION

Q: * liquid limit should always be greater than plastic limit True O False O * Gs is a unitless value…

A: True   Liquid limit should always greater than plastic limit As, liquid limit - plastic limit =…

Metrology of surface finish

In general terms, the application of scientific principles in the study of measurements is known as metrology. When speaking about measurement, it could be of time, length, microstructures, grain structures, internal crystal discontinuities, surface roughness, measurements of angles, height, width, and so on. While coming to the domain of mechanical engineering, metrology is considered the science of measurements of surface finish, length, surface texture, and angles.