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For the same long diagonal length of indenter of Vickers hardness and Knoop hardness, the Knoop hardness is how much percentage of the Vickers indenter?
Diamond indenter is known as ‘Brale indenter’.
Which among the following are the anthropometric procedures for measurement?
1. Length measurement
2. Head circumference measurement
3. Weight measurement
4. Waist measurement`
Which of the following tests are microhardness tests? P. Brinell Hardness Q. Rockwell Hardness R. Knoop Hardness S. Vickers Hardness
A brale indentor used in Rockwell hardness test has the following geometry and material.
If the material is showing a hardness value of HRc 57, which of the following combination of load and indenter is used for the measurement?
Suppose Brinell hardness measurement is made from a nonstandard ball of diameter 5 mm. If the load applied in 10 mm standard ball is 3000 kg, then what load should be applied on the 5 mm ball to get the consistent reading in hardness measurement?
What of these can be used as a reasonable model for measurement system capability studies? Here y,x and ε denote the observed measurement, true measurement, and the measurement error respectively.
Consider the following statements for dynamic characteristics of a measurement system: 1. Fidelity is defined as the degree to which a measurement system indicates changes in the measured quantity without any dynamic error. 2. Dynamic error is the difference between the true value of the quantity changing with time and the value indicated by the measurement system if no static error is assumed. 3. Measuring lag is the retardation in the response of a measurement system to changes in the measured quantity. Which of the above statements are correct?
Which among the following are the procedures for taking measurements?
1. Body measurement
2. Sleeves measurement
3. Shirt measurement
4. Pant measurement