Confined Space Entry Safety Measures
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Questions and Answers

What equipment can be used to maintain contact between workers inside and outside a confined space?

  • Mobile phones
  • Walkie-talkies
  • Laser pointers
  • Radios (correct)
  • How can atmospheric hazards be controlled before and during entry into a confined space?

  • By installing CCTV cameras
  • By increasing the temperature
  • By using protective suits
  • By ensuring proper ventilation (correct)
  • What is the purpose of using blowers in confined spaces?

  • To provide heating during colder seasons
  • To enhance visibility in low-light conditions
  • To create loud noises for communication
  • To remove contaminants and introduce fresh air (correct)
  • Study Notes

    Equipment for Maintaining Contact

    • Two-way radios or phones can be used to maintain contact between workers inside and outside a confined space
    • Intercom systems or other communication devices can also be used

    Controlling Atmospheric Hazards

    • Atmospheric hazards can be controlled before entry by testing the air for oxygen levels, flammable gases, and toxic substances
    • Ventilation systems can be used to remove hazardous substances from the confined space
    • During entry, continuous monitoring of the atmosphere can be done using gas detectors and other equipment

    Purpose of Blowees

    • Blowees are used to ventilate confined spaces by circulating and exchanging the air
    • They help to remove hazardous substances and provide a safe breathing environment for workers

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    Test your knowledge of safety measures for confined space entry, including effective communication systems and ventilation techniques to control atmospheric hazards.

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