Miscellaneous In Metallurgy - Study Mode
[#91] A large set of data for a given measurement has been found to be normally distributed around a mean 'μ' with standard deviation 'σ'. Which of the following limits would have about 95% of the data points around the mean and rest outside?
Correct Answer
(C) μ - 2σ and μ + 2σ
[#92] Two identical engineering components are made from alloys X and Y. The K IC of alloy X is greater than that of alloy Y. If these components are subjected to the same stress during operation under mode-I loading, which one of the following statements is true?
Correct Answer
(A) Component made from alloy X can tolerate a larger flaw size compared to that made from Y
[#93] Cork is a good insulator because
Correct Answer
(D) It is porous
[#94] Kevlar is commercial name for
Correct Answer
(C) Aramid fibers
[#95] For a steady state two dimensional in-compressible flow of liquid iron, the x component of the velocity is given by μ = 5xy 2 - xy where x and y are rectangular co-ordinates. Using the continuity equation, the y component of the velocity would be
Correct Answer
(A) 5y - y 2