Pick out the wrong statement.

A. Cold cracking of a weld is due to the presence of hydrogen gas in the weld

B. True stress is given by, σ = σE (1 + εE), where σE and εE are engineering stress and engineering strain respectively

C. Phosphorous can be easily recovered in the iron blast furnace

D. High residual stress at the surface is beneficial for fatigue properties of a material

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. Steel balls are manufactured by
  2. Metalloids
  3. Which of the following is not used as a bearing material?
  4. Annealing of cast iron
  5. Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature…
  6. Electrical conductivities of semi-conductors are of the order of __________ ohm/cm.
  7. Nitriding of a steel part does not increase its
  8. Secondary hardening in steels arises out of the
  9. The normal stress is the same in all directions at a point in a fluid, only when the fluid
  10. Which of the following materials does not form adherent oxide film on surface?
  11. 'Amortization' in respect of financial obligation of a company means the
  12. Strain hardening effect in metals subjected to cold working is due to the __________ mechanism.
  13. Viscoelastic behaviour is observed in __________ materials.
  14. Most of the phosphorous present in the blast furnace burden enters into
  15. The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 × 10-16 m2S-1 and it is 1.94 ×…
  16. Specific __________ is a dimensionless quantity.
  17. Air standard Otto cycle is more efficient than the diesel cycle for the same
  18. In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular…
  19. The ratio of the shear stress to the principal stress on a principal plane is
  20. Softening of hardened steel is done by its
  21. For a first order chemical reaction, the concentration of the reactant decreases __________ with time.
  22. Hot extrusion of aluminium is done in the temperature range of __________ °C.
  23. One ton of refrigeration is not equivalent to the heat removal rate of
  24. If Reynolds number is greater than 1, then the
  25. The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the…
  26. For separating small pieces of metal from engine oil of a car, the best separating technique is the
  27. Which of the following is not the function of a volute casing provided in a centrifugal pump?
  28. The pressure outside a bubble/droplet of liquid is __________ the internal pressure.
  29. Fibre glass is a composite material of
  30. Ultimate strength in tension as compared to that in shear for steel is