Test Your Knowledge on Liquefied Natural Gas (LNG) Handling Procedures
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Questions and Answers

What is the boiling point of LNG?

  • -200°F
  • -300°F
  • -220°F
  • -260°F (correct)
  • What is the flammable range of LNG vapor?

  • 15% to 20%
  • 5% to 15% (correct)
  • 5% to 10%
  • 2% to 5%
  • What is the weight of LNG compared to water?

  • LNG weighs 42% less than water (correct)
  • LNG weighs twice as much as water
  • LNG weighs 50% more than water
  • LNG weighs the same as water
  • What is the ratio of LNG to gas vapor?

    <p>1:640</p> Signup and view all the answers

    What is the initial state of LNG when it vaporizes?

    <p>It vaporizes as a heavy gas</p> Signup and view all the answers

    What should be worn when handling LNG?

    <p>Safety glasses, gloves, long sleeve shirts, protective outer garments, and boots</p> Signup and view all the answers

    What should be done in the case of a substantial LNG spill?

    <p>All sources of ignition should be eliminated, and the area should be evacuated</p> Signup and view all the answers

    Study Notes

    Characteristics and Handling Procedures of Liquefied Natural Gas (LNG)

    • LNG has a boiling point of –260°F and is stored at around -220°F, depending on tank pressure and other minor factors.
    • LNG vapor’s flammable range is from 5.3% to 15% vapor in the air.
    • LNG is an odorless, colorless, non-toxic and non-corrosive liquid, but its vapor can displace oxygen and cause severe frostbite if inhaled.
    • The LNG to gas vapor ratio is 1:640, and LNG weighs about 42% that of water.
    • LNG reaches its boiling point rapidly and can produce a flammable vapor cloud if spilled to the ground.
    • The visible fog produced during LNG vaporization serves as an indication of the approximate travel of the methane vapors.
    • LNG initially vaporizes as a heavy gas and eventually becomes lighter than air and rises.
    • LNG has a violent reaction with water and water spray, which can result in an explosion-like reaction.
    • Proper Personal Protective Equipment (PPE) should be worn whenever handling LNG, including safety glasses, gloves, long sleeve shirts, protective outer garments, and boots.
    • In the case of a substantial LNG spill, all sources of ignition should be eliminated, and the area should be evacuated.
    • New operators must receive initial training, and all operators must be reevaluated periodically through on-the-job training, online training modules, SOP review, oral and written examinations.
    • All training records for employees must be maintained by the company.

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    Description

    Test your knowledge about the characteristics and handling procedures of Liquefied Natural Gas (LNG) with this informative quiz. From its boiling point to its flammable range, learn about the properties of LNG and the proper safety measures needed when handling it. Find out about the importance of Personal Protective Equipment (PPE), the dangers associated with a substantial LNG spill, and the necessary training required for operators. Take the quiz now and see how much you know about LNG handling procedures.

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