Which of the following is not an explosive?




D. Lead azide

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  1. In the Bayer's process, bauxite is digested under pressure using
  2. The materials which fracture even at small strains are termed as brittle, while those materials which…
  3. Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same…
  4. Which of the following pairs is not correctly matched?
  5. Consumable electrodes are used in the __________ welding.
  6. Out of the following, the joint produced by __________ has the lowest strength.
  7. Stresses encountered in the metal forming processes are less than the __________ of the material.
  8. A spring material should have low
  9. Potable water means the water used for
  10. The mechanism which changes the value of manipulated variable in response to the output signal from…
  11. Material of construction of the electrode used in the electric resistance welding is
  12. Between 230 and 370°C, blue brittleness is caused in mild steel because of the
  13. The transition temperature at which all the ferromagnetic materials become paramagnetic materials is…
  14. Materials having __________ lattice structure are usually the most ductile.
  15. The most commonly used moderator in nuclear power plants is
  16. The elastic strain energy of a unit length of an edge dislocation as compared to that of a screw dislocation…
  17. Electrometallurgical methods of metal extraction is normally used for those metals
  18. One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C).…
  19. Metal cutting by oxy-acetylene flame is accomplished by the __________ of the metal.
  20. A material being tested for endurance strength is subjected to the __________ load.
  21. Which of the following metals is not subjected to electrolytic refining/purification?
  22. The approximate height of a blast furnace having a useful volume of 2000 m3 is about __________ metres
  23. Stainless steel is welded using
  24. Alloy powder manufactured by the following process have spherical shapes.
  25. The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer…
  26. On oscilloscope screen for dynamic measurement, lissajous diagram is normally used to determine the…
  27. Hydrogen can be
  28. Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect…
  29. Corrosion of metals cannot be prevented by its
  30. Which of the following is not an ore of copper?