3A2E3 C15 Obj 8
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Questions and Answers

Which type of fire protection system is typically installed internally in tanks containing flammable or combustible liquids?

  • Sprinkler systems
  • Smoke detectors
  • Fire extinguishers
  • Air-foam generating and distributing devices (correct)
  • What is the purpose of foam chambers in large fuel storage tanks?

  • To detect fires in the tanks
  • To prevent clogging of foam-makers
  • To supply foam solution to each foam-maker (correct)
  • To prevent vapour from entering the foam piping
  • What is the purpose of frangible seals in foam chambers?

  • To prevent clogging of foam-makers
  • To prevent vapour from entering the foam piping
  • To detect fires in the tanks
  • To burst when foam pressure is applied (correct)
  • Which type of foam-discharge outlet is required for some alcohol-type foams?

    <p>Type I</p> Signup and view all the answers

    What are central foam distributing systems?

    <p>Systems that consist of an enclosure that houses a foam concentrate supply tank and a proportioning device</p> Signup and view all the answers

    What are semi-fixed systems used for?

    <p>To extinguish fires in storage tanks</p> Signup and view all the answers

    What do foam-making sprinklers and deluge or spray nozzles using AFFF foams replace?

    <p>Water sprinkler nozzles</p> Signup and view all the answers

    Which type of fire protection system is typically installed internally in tanks containing flammable or combustible liquids?

    <p>Foam chambers</p> Signup and view all the answers

    What is the purpose of frangible seals in foam chambers?

    <p>To burst when foam pressure is applied</p> Signup and view all the answers

    What do foam chambers with foam-makers installed at equally spaced positions slightly below the top rim of large fuel storage tanks prevent?

    <p>Ignition of flammable contents of the tank</p> Signup and view all the answers

    Which type of foam-discharge outlet is required for some alcohol-type foams?

    <p>Type I</p> Signup and view all the answers

    What is the purpose of frangible seals in foam chambers?

    <p>To prevent foam from plunging into the fuel</p> Signup and view all the answers

    What do foam-making sprinklers and deluge or spray nozzles using AFFF foams replace?

    <p>Water sprinkler nozzles</p> Signup and view all the answers

    Which type of fire protection system is typically installed internally in tanks containing flammable or combustible liquids?

    <p>Central foam distributing systems</p> Signup and view all the answers

    What are central foam distributing systems?

    <p>Systems that consist of an enclosure that houses a foam concentrate supply tank and a proportioning device</p> Signup and view all the answers

    What are semi-fixed systems used for?

    <p>To control or extinguish fires in areas where flammable and combustible liquids are processed, stored, or handled</p> Signup and view all the answers

    What is the purpose of foam chambers in large fuel storage tanks?

    <p>To prevent foam from plunging into the fuel</p> Signup and view all the answers

    Which type of foam-discharge outlet is required for some alcohol-type foams?

    <p>Deluge or spray nozzles</p> Signup and view all the answers

    What is the purpose of central foam distributing systems?

    <p>To supply foam solution to each foam-maker simultaneously</p> Signup and view all the answers

    What do foam chambers with foam-makers installed at equally spaced positions slightly below the top rim of large fuel storage tanks prevent?

    <p>Vapour from entering the foam piping</p> Signup and view all the answers

    Which type of foam-discharge outlet is required for some alcohol-type foams?

    <p>Type I outlet</p> Signup and view all the answers

    What is the purpose of frangible seals in foam chambers?

    <p>To allow foam to be applied to the burning surface without plunging into the fuel</p> Signup and view all the answers

    What do foam chambers with foam-makers installed at equally spaced positions slightly below the top rim of large fuel storage tanks prevent?

    <p>Plunging of foam into the fuel</p> Signup and view all the answers

    What do foam-making sprinklers and deluge or spray nozzles using AFFF foams replace?

    <p>Water sprinkler nozzles</p> Signup and view all the answers

    Study Notes

    Fire Protection Systems for Flammable Liquids

    • Internally installed fire protection systems in tanks containing flammable or combustible liquids typically use a foam-based system.

    Foam Chambers and Frangible Seals

    • Foam chambers are installed in large fuel storage tanks to prevent fire spread and provide a barrier between the fuel and air.
    • Frangible seals in foam chambers burst under pressure, allowing foam to flow into the tank and suppress fires.

    Foam-Discharge Outlets

    • Some alcohol-type foams require a specific type of foam-discharge outlet.

    Central Foam Distributing Systems

    • Central foam distributing systems supply foam to multiple areas, providing a comprehensive fire protection system.

    Semi-Fixed Systems

    • Semi-fixed systems are used for areas where a fixed system is not feasible, providing a flexible fire protection solution.

    Foam-Making Sprinklers and Deluge/Spray Nozzles

    • Foam-making sprinklers and deluge or spray nozzles using AFFF foams replace traditional sprinkler systems, providing a more effective fire suppression method.

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    Related Documents

    Fire Protection Systems PDF

    Description

    Test your knowledge on foam systems for fire protection in process buildings and tanks. Learn about the purpose and components of a typical foam system.

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