L.P. Book HAZMAT / Lesson #2 Hazardous Material – Ppe
Lesson #2 Hazardous Material – PPE
- 1.
Positive pressure breathing apparatus (SCBA)
- A.
Must always be worn on a hazardous materials scene
- B.
Is too expensive to maintain
- C.
Must be worn until the Incident Commander determines through air monitoring that it is no longer required
- D.
Has a longer work period than supplied air respirators (SAR)
Correct Answer
C. Must be worn until the Incident Commander determines through air monitoring that it is no longer requiredExplanation
Positive pressure breathing apparatus (SCBA) must be worn until the Incident Commander determines through air monitoring that it is no longer required. This is because SCBA provides a continuous supply of clean air to the wearer, creating a positive pressure inside the mask that prevents any contaminated air from entering. It is crucial to wear SCBA until the Incident Commander confirms that the air is safe to breathe, as hazardous materials can be present in the environment even if they are not immediately visible or detectable. This ensures the safety of the wearer and prevents any potential health risks.Rate this question:
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- 2.
Limitations to wearing an SCBA are:
- A.
Heavy
- B.
Limited air supply
- C.
May impair movements in confined space
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
The correct answer is "All of the above." This means that all of the given options are limitations to wearing an SCBA (Self-Contained Breathing Apparatus). SCBAs are heavy, have a limited air supply, and may impair movements in confined spaces. These limitations can make it challenging for individuals to wear and use SCBAs effectively in certain situations.Rate this question:
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- 3.
Limitations of Positive-Pressure supplied air respirators (SAR)
- A.
Requires supervision – monitoring of air supply
- B.
Hose is limited to 300 feet
- C.
Not approved for use in atmospheres immediately dangerous to life or health (IDLH) unless equipped with an emergency egress unit
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
All of the statements mentioned in the options are limitations of positive-pressure supplied air respirators (SAR). First, they require supervision and monitoring of the air supply to ensure that the wearer is receiving sufficient clean air. Second, the hose that supplies the air is limited to a maximum length of 300 feet, which restricts the mobility of the wearer. Lastly, SARs are not approved for use in atmospheres that are immediately dangerous to life or health (IDLH), unless they are equipped with an emergency egress unit. Therefore, all of the above statements are correct and explain the limitations of positive-pressure supplied air respirators.Rate this question:
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- 4.
Limitations to wearing structural firefighting gear for hazardous materials operations
- A.
Not designed to protect from harmful gases, vapors, liquids, or dusts encountered during hazardous materials incidents
- B.
Causes diaphoresis for the wearer
- C.
Limited heat protection
- D.
Both b & c
Correct Answer
A. Not designed to protect from harmful gases, vapors, liquids, or dusts encountered during hazardous materials incidentsExplanation
The correct answer is "Not designed to protect from harmful gases, vapors, liquids, or dusts encountered during hazardous materials incidents." Structural firefighting gear is not specifically designed to provide protection against the hazardous substances typically encountered during hazardous materials incidents. It may not have the necessary barrier properties or filtration capabilities to effectively protect the wearer from harmful gases, vapors, liquids, or dusts. Therefore, relying solely on structural firefighting gear for hazardous materials operations would not provide adequate protection.Rate this question:
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- 5.
Vapor protective clothing limitations include reduced mobility & vision, heavy & bulky, can’t be used in high temperature atmospheres, and
- A.
Can never be re-used
- B.
Must be decontaminated before opening
- C.
Must always be re-used because of cost
- D.
None of the above
Correct Answer
B. Must be decontaminated before openingExplanation
Vapor protective clothing must be decontaminated before opening to ensure that any hazardous substances or contaminants on the clothing are removed. This is important to prevent the spread of contaminants to the wearer or the environment when the clothing is removed. Failure to decontaminate the clothing before opening could lead to exposure to hazardous substances. Therefore, it is necessary to decontaminate the clothing before opening it.Rate this question:
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- 6.
High temperature protective clothing
- A.
Are designed to provide high degree of protection from radiant heat
- B.
Have limited mobility & flexibility
- C.
Are used for protection against all types of materials
- D.
Both a & b
Correct Answer
D. Both a & bExplanation
High temperature protective clothing is designed to provide a high degree of protection from radiant heat. This means that it is specifically created to shield the wearer from intense heat sources such as flames or hot surfaces. Additionally, this type of clothing typically has limited mobility and flexibility, which can be attributed to the thick and heavy materials used to provide the necessary protection. Therefore, the correct answer is "Both a & b" because high temperature protective clothing offers protection from radiant heat and also has limited mobility and flexibility.Rate this question:
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Current Version
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Mar 18, 2023Quiz Edited by
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Sep 08, 2009Quiz Created by
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