Unit 5a - Confined Spaces

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  • 1/10 Questions

    It is our responsibility to understand the precautions and procedures concerning confined spaces and ensure we ALL go home safe.

    • True
    • False
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About This Quiz

This quiz, titled 'Unit 5a - Confined Spaces', assesses knowledge on safety protocols in confined spaces, including identification, atmospheric testing, guarding openings, and understanding emergency procedures to ensure workplace safety.

Unit 5a - Confined Spaces - Quiz

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  • 2. 

    IDLH is an acronym for:

    • Inconspicuous Deadly Levels of Hydrogen

    • Immediately Dangerous to Life and Heath

    • Identified Dangerous Levels of Hydrogen

    • Interior Depth by Length and Height

    • International Deadly Limits of Hydrogen

    Correct Answer
    A. Immediately Dangerous to Life and Heath
    Explanation
    IDLH is an acronym used in occupational safety and health to describe the level of airborne contaminants that pose an immediate threat to life or health. It is a term used to identify situations where workers could be exposed to hazardous substances at levels that may cause irreversible health effects or death. The acronym stands for "Immediately Dangerous to Life and Heath."

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  • 3. 

    A non-permit space may become a permit space if hazards are introduced. 

    • True

    • False

    Correct Answer
    A. True
    Explanation
    A non-permit space may become a permit space if hazards are introduced. This means that even if a space is initially considered safe and does not require a permit for entry, if hazards are introduced into the space, it can become dangerous and require a permit for entry. This highlights the importance of regularly assessing and monitoring spaces to ensure they remain safe for workers.

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  • 4. 

    Signage for permit confined space shall be considered proprietary and confidential.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because signage for permit confined spaces should not be considered proprietary and confidential. In fact, signage for permit confined spaces should be prominently displayed and easily visible to ensure the safety of workers and to communicate the potential hazards associated with the confined space. This information should be readily accessible to all employees and contractors who may enter the confined space.

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  • 5. 

    Select the true statement:

    • Any conditions making it unsafe to remove an entrance cover shall be eliminated after the cover is removed.

    • Before an employee enters a permit confined space, the internal atmosphere shall be tested for oxygen content, potential toxic air contaminants, flammable gases and vapors

    • Ventilation equipment shall be readily available for permit and non-permit confined spaces

    • Confined space shall be treated as non-permit until deemed permit.

    • Two of the above

    Correct Answer
    A. Before an employee enters a permit confined space, the internal atmosphere shall be tested for oxygen content, potential toxic air contaminants, flammable gases and vapors
    Explanation
    Before an employee enters a permit confined space, it is necessary to test the internal atmosphere for various factors such as oxygen content, potential toxic air contaminants, flammable gases, and vapors. This is important to ensure the safety of the employee and prevent any potential hazards or risks that may be present in the confined space. By conducting these tests, any potential dangers can be identified and appropriate measures can be taken to mitigate them before allowing entry into the confined space.

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  • 6. 

    What needs to be available to employees at ALL TIMES

    • OSHA Standards

    • RFI’s

    • Traffic control devices

    • MSDS

    • Caution Tape

    Correct Answer
    A. MSDS
    Explanation
    Employees need to have Material Safety Data Sheets (MSDS) available at all times. MSDS provide important information about the hazards and handling of chemicals and substances used in the workplace. Having access to MSDS ensures that employees can refer to the necessary safety precautions and procedures whenever needed, promoting a safe working environment.

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  • 7. 

    Confined spaces include, but are not limited to: (Select all that apply)

    • Tanks

    • Storage bins

    • A properly shored trench

    • Silos

    • The job connex

    Correct Answer(s)
    A. Tanks
    A. Storage bins
    A. A properly shored trench
    A. Silos
    Explanation
    The correct answer includes tanks, storage bins, and a properly shored trench as examples of confined spaces. Confined spaces are areas that are not designed for continuous occupancy, have limited entry and exit points, and may have hazardous conditions. Tanks, storage bins, and silos are enclosed spaces that can pose risks such as lack of oxygen, toxic gases, or physical hazards. A properly shored trench is also considered a confined space because it has limited access and can be dangerous due to cave-ins or other hazards.

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  • 8. 

    An Attendant: (Select all that apply)

    • Can work on several things and monitor the workers periodically

    • May only distracted by relevant operations that have been determined to be high risk

    • Is able to maintain communication with workers

    • Is responsible for signing in and out employees who enter and exit the space

    • Is trained to summon the emergency response team if necessary

    Correct Answer(s)
    A. Is able to maintain communication with workers
    A. Is responsible for signing in and out employees who enter and exit the space
    A. Is trained to summon the emergency response team if necessary
    Explanation
    The correct answer is: An Attendant is able to maintain communication with workers, is responsible for signing in and out employees who enter and exit the space, and is trained to summon the emergency response team if necessary.

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  • 9. 

    A rescue plan: (Select all that apply)

    • Needs to be known by all employees

    • Ensures that employees practice making permit space rescues at least every 6 weeks, by removing dummies, manikins, or actual persons

    • Must be developed prior to entering confined space and should consult local emergency response services when developing rescue plan

    • Will Comply with OSHA if you use the last jobs rescue plan

    • In some cases is optional due to the scope of work being performed

    Correct Answer(s)
    A. Needs to be known by all employees
    A. Must be developed prior to entering confined space and should consult local emergency response services when developing rescue plan
    Explanation
    The correct answer is that a rescue plan needs to be known by all employees, must be developed prior to entering a confined space, and should consult local emergency response services when developing the rescue plan. This is because all employees should be aware of the rescue plan in case of an emergency. The plan should be developed before entering a confined space to ensure preparedness. Consulting local emergency response services helps in creating an effective plan that complies with safety regulations and guidelines.

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  • 10. 

    When confined space entrance covers are removed, the opening shall be guarded prior to removal by: (Select all that apply)

    • Railing and/or signage

    • Temporary cover

    • Temporary barrier

    • OSHA regulated board stretchers

    • Proper testing activities to ensure compliance

    Correct Answer(s)
    A. Railing and/or signage
    A. Temporary cover
    A. Temporary barrier
    Explanation
    When confined space entrance covers are removed, it is important to guard the opening to prevent any accidents or unauthorized access. Railing and/or signage can be used to clearly mark the area and warn people of the potential hazards. A temporary cover can be placed over the opening to prevent anyone from accidentally falling in. A temporary barrier can also be used to physically block access to the opening. These measures help ensure the safety of individuals and comply with regulations regarding confined spaces. OSHA regulated board stretchers and proper testing activities are not directly related to guarding the opening and are therefore not applicable in this context.

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Quiz Review Timeline (Updated): Aug 29, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Aug 29, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 13, 2010
    Quiz Created by
    Timothy.howe
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