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