A Fuel Can Only Achieve Combustion In

Question: A fuel can only achieve combustion​ in:

  1. The gaseous state.

  2. B. A​ liquid-solid phase.

  3. C. The solid state.

  4. D. The liquid state.

  5. Answer: A. The gaseous state.

  6. Question: Which chemical reaction is associated with a​ fire?

  7. A. Reduction

  8. B. Oxidation

  9. C. Precipitation

  10. D. None of the above

  11. Answer: B. Oxidation

  12. Question: What is the rapid combination of oxygen with a​ fuel, which produces a noticeable release of​ energy?

  13. A. The flash point

  14. B. Ignition

  15. C. Explosion

  16. D. Combustion

  17. Answer: D. Combustion

  18. Question: If the fuel concentration in the​ fuel-air mix is too low or too​ great, combustion does not occur.

  19. True

  20. False

  21. Answer: True

  22. Question: The quantity of heat from a chemical reaction comes​ from:

  23. A. The emission of radiation.

  24. B. The composition of the​ fuel-air mix.

  25. C. The breaking and formation of chemical bonds.

  26. D. The presence of oxygen in the reaction.

  27. Answer: C. The breaking and formation of chemical bonds.

  28. Question: Nitroglycerin-based dynamite has all but disappeared from the industrial explosives market.

  29. True

  30. False

  31. Answer: True

  32. Question: What is NOT true about primary​ explosives?

  33. A. They will detonate violently.

  34. B. They are used in blasting caps.

  35. C. Lead azide and lead styphnate are examples.

  36. D. They are very stable.

  37. Answer: D. They are very stable.

  38. Question: The easiest way to recover accelerant residues from​ fire-scene debris is to heat the airtight container in which the sample is sent to the laboratory.

  39. True

  40. False

  41. Answer: True

  42. Question: Which is NOT a high​ explosive?

  43. A. RDX

  44. B. Black powder

  45. C. Dynamite

  46. D. TNT

  47. Answer: B. Black powder

  48. Question: The likelihood that spontaneous combustion will occur in improperly ventilated containers of highly unsaturated oils is​ ________ the likelihood that such combustion will occur with hydrocarbon lubricating oils.

  49. A. Greater than

  50. B. The same as

  51. C. Less than

  52. Answer: A. Greater than

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