31. In arc welding eyes need to be protected against
32. If Reynolds number is greater than 4000, then the flow is said to be
33. Which is the solid state welding?
34. Which one of the following methods is not used for numerically solving an ordinary differential equation (ODE)?
35. The bulk modulus of a material with a poisson's ratio of 0.5 is equal to
36. The hardness obtained of steel from the hardening process depends
37. Bernoulli equation in the absence of electrical and magnetic field suggests
38. A body starts yielding when it is subjected to stress state with principal stresses of 250 MPa, 50 MPa and - 50 MPa. What is the yield strength of the material. in MPa, if Tresca yield criterion is obeyed?
39. A species can diffuse through the lattice (diffusion coefficient, DL), along grain boundaries (diffusion coefficient, DGB), and along free surface. (diffusion coefficient, Ds), Which of the following relations is correct?
40. Which of the following polymers does not have vinylic monomer units?
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