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  1. Blow off cock is provided in steam boiler to
  2. Methyl orange indicator turns
  3. A psychrometer does not measure the __________ temperature of moist air.
  4. Which of the following is normally not found in both the S.I. (petrol) & C.I. (diesel) engines?
  5. Unit of surface tension in S.I. unit is
  6. An alloy of Fe - 0.4 % C is
  7. Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be
  8. __________ rubber is generally used for making 'O' rings used for vacuum sealings.
  9. Carbon supply in pack carburising process is in the form of
  10. Which of the following is not the commercial name of poly-methyl-methacrylate (PMMA)?
  11. The main charge in blast furnace is usually
  12. Consider an ideal solution of components A and B. The entropy of mixing per mole of an alloy containing…
  13. In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates,…
  14. What is the pH of distilled water?
  15. While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen…
  16. In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean…
  17. Cold working of a material results in increase in hardness, which is termed as the __________ hardening.
  18. Principal alloying element in Elinvar (used for making hair springs for watches) is
  19. The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 × 10-16 m2S-1 and it is 1.94 ×…
  20. Main constituent of bone ash is
  21. Thermal efficiency of an internal combustion engine is around __________ percent.
  22. The same volume of all gases is representative of their
  23. Uniform ramming of sand in green sand moulding process leads to
  24. Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical…
  25. Runge-Kutta method is used to solve a/an
  26. Gross national product (GNP) means the total value of __________ in a country.
  27. Which of the following metals is not subjected to electrolytic refining/purification?
  28. __________ is the process used for setting up compressive stresses in the surface of a metal to improve…
  29. A highly elastic material is deformed least on loading and retains its original form on removal of the…
  30. Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?