Which of the following is the correct nature of shear stress distribution along the cross section in a horizontal circular pipe under steady state fluid flow condition?





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  1. Out of the following, the __________ pipe has the least corrosion resistance.
  2. The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of…
  3. Which of the following heat treatment processes is usually applied to castings?
  4. Pick out the wrong statement.
  5. Consider an ideal solution of components A and B. The entropy of mixing per mole of an alloy containing…
  6. The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel.
  7. A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change.…
  8. Hot working of lead is carried out at
  9. In electrical resistance welding, distortion results from the use of improper
  10. Which of the following is an example of cathodic protection of metals against corrosion?
  11. Which of the following metals is not subjected to electrolytic refining/purification?
  12. What is the range of tempering temperature (°C) for most of the materials?
  13. Ammonia gas can be dried by
  14. Normalising of an object does not
  15. With increase in temperature, the surface tension of water
  16. Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?
  17. Pipelines carrying various utilities in chemical industries are identified by their colour codes. The…
  18. Hydrogen can be
  19. Yield strength of a material is determined by the __________ test.
  20. The malleability of a material is the property by virtue of which it can be rolled or hammered into…
  21. In the acid Bessemer process, the hot metal should have the following composition.
  22. __________ is not used as a material of construction in thermocouples.
  23. Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as
  24. Which of the following performance characteristics of a S.I engine is not affected by the front end…
  25. Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation…
  26. Brittleness induced due to the presence of sulphur in steel can be reduced by adding
  27. Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be
  28. The refractory lining of the bottom in a basic electric arc furnace is made of
  29. Oxygen cylinders used for autogenous (cutting/welding) purposes are
  30. Projection welding & stud welding is categorised as the __________ welding.