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Gratings is associated with the measurement of

A. Linear displacement

B. Concavity/convexity

C. Surface texture

D. Flatness

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

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  1. Sub zero treatment of steel is done to
  2. The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress…
  3. __________ of hard alloy and tool steel is done to make it easily machinable.
  4. An alloy of Fe - 0.4 % C is
  5. The approximate height of a blast furnace having a useful volume of 2000 m3 is about __________ metres
  6. The critical pressure at which the latent heat of vaporisation of steam becomes zero is __________ Kg/cm2.
  7. What is the value of entropy at 273°K?
  8. Maximum permissible air velocity in pipelines is about __________ metre/second.
  9. Multistage compression of air as compared to single stage compression offers the advantage of
  10. Hot extrusion process is not used for making
  11. Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.
  12. The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is
  13. The main reducing agent in iron blast furnace is
  14. The mechanism which changes the value of manipulated variable in response to the output signal from…
  15. Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA)?
  16. The bolt is subjected to __________ when the nut is tightened by putting the washer beneath it.
  17. Factor of safety in machine design is defined as the ratio of ultimate stress to __________ stress.
  18. Carbon supply in pack carburising process is in the form of
  19. Silicon crystal can be converted to p-type semiconductor by doping with
  20. Tip of the match stick contains a mixture of
  21. Limestone is added in the blast furnace (during pig iron manufacture) to
  22. Cold cracking in the heat affected zone of a high strength steel weld can take place because of the
  23. __________ is the hardest material out of the following.
  24. Atomic __________ is a whole number for an element.
  25. The leaching solvent used in Baeyer's process for the purification of bauxite is
  26. Pick out the wrong statement.
  27. The trace metal present in insulin is
  28. Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying…
  29. A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure…
  30. For an ideal gas, Cp - Cv is