May'19 - Safety Online Quiz

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| By Hari
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Hari
Community Contributor
Quizzes Created: 1 | Total Attempts: 288
| Attempts: 288
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  • 1/10 Questions

    Definition of Confined Space is – Any person required / allowed to enter any chamber, tank, vat, pit, pipe, flue or any other confined space in which hazard of any gas, fume, vapour or dust is likely to be present / anticipated as to involve risk of inhalation by the concerned person, which may lead to intoxication / suffocation / fainting / injury / death

    • True
    • False
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About This Quiz

The 'May'19 - Safety Online QUIZ' assesses knowledge on safety protocols for confined space entry, including oxygen levels, attendant responsibilities, and hazardous conditions. It aims to enhance awareness and ensure compliance with safety standards, critical for occupational health and safety.

May19 - Safety Online Quiz - Quiz

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  • 2. 

    Entering a permit space can prove fatal for an employee when the oxygen level is below 19.5

    • TRUE

    • FALSE

    Correct Answer
    A. TRUE
    Explanation
    Entering a permit space can prove fatal for an employee when the oxygen level is below 19.5. This is because oxygen is necessary for humans to breathe and function properly. When the oxygen level drops below 19.5%, it can lead to a condition called hypoxia, which can cause dizziness, confusion, and even loss of consciousness. In extreme cases, it can result in death. Therefore, it is crucial for employees to be aware of the oxygen levels in permit spaces to ensure their safety.

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  • 3. 

    The portable hand lamp flame proof and having 24 volts supply is allowed inside the confined space

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The portable hand lamp is flame proof, meaning it is designed to prevent the ignition of flammable gases or vapors in the confined space. Additionally, it operates on a 24-volt supply, which reduces the risk of electrical hazards. Therefore, it is safe to use the lamp inside the confined space.

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  • 4. 

    An attendant may leave the area of the confined entry for brief periods

    • False

    • True

    Correct Answer
    A. False
    Explanation
    The statement is false because an attendant should not leave the area of the confined entry for brief periods. The role of an attendant is to monitor the entry continuously and ensure the safety of the workers inside. Leaving the area even for a short time could pose a risk as the attendant may miss any potential hazards or emergencies that may arise. Therefore, it is important for the attendant to remain present and vigilant throughout the duration of the confined entry.

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  • 5. 

    The man-hole dimensions meeting the statutory requirements: (a) (i) For rectangular or oval shape, minimum size required is shoulder width + 8 cm in length & 30 cm wide (ii) For circular shape, minimum size required is shoulder width + 8 cm in dia (B) (b) (i) For oval shape, minimum size required is 40.6 cm in length & 30.5 cm wide (ii) For circular shape, minimum size required is 40.6 cm

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The man-hole dimensions stated in option (a) and (b) meet the statutory requirements. For rectangular or oval shape man-holes, the minimum size required is the shoulder width + 8 cm in length and 30 cm wide. For circular shape man-holes, the minimum size required is the shoulder width + 8 cm in diameter. Option (b) specifies that for oval shape man-holes, the minimum size required is 40.6 cm in length and 30.5 cm wide, and for circular shape man-holes, the minimum size required is 40.6 cm. Since both options meet the specified requirements, the answer is True.

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  • 6. 

    Acceptable oxygen levels for confined space entry are 16.5% to 18.5%.

    • False

    • True

    Correct Answer
    A. False
    Explanation
    The statement that acceptable oxygen levels for confined space entry are 16.5% to 18.5% is false. The acceptable oxygen levels for confined space entry should be between 19.5% and 23.5%. Oxygen levels below 19.5% can cause oxygen deficiency, leading to dizziness, confusion, and loss of consciousness. Oxygen levels above 23.5% can increase the risk of fire and explosion. It is crucial to ensure that the oxygen levels in confined spaces are within the acceptable range to maintain a safe working environment.

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  • 7. 

    Which of the following is included but not limited to confined spaces?

    • Vessels

    • Tanks

    • Vaults

    • Trenches

    Correct Answer
    A. Trenches
    Explanation
    Confined spaces refer to areas that are enclosed or partially enclosed, with limited access and ventilation. While vessels, tanks, and vaults are commonly known as confined spaces, trenches can also be included in this category. Trenches are narrow excavations in the ground, often used for construction or utility work. They can pose significant risks, such as cave-ins, lack of oxygen, or toxic gases, making them a type of confined space. Therefore, trenches are included but not limited to confined spaces.

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  • 8. 

    What does the acronym IDLH stand for with respect to confined spaces?

    • Immediately Dangerous to Life or Health

    • Instant Death Lurks Here

    • Integrated and Differentiated Level of Hazards

    • Inflammability Detection Level Hazard

    Correct Answer
    A. Immediately Dangerous to Life or Health
    Explanation
    The acronym IDLH stands for "Immediately Dangerous to Life or Health." This term is used to describe an atmosphere that poses an immediate threat to life, would cause irreversible health effects, or would impair an individual's ability to escape from a confined space. It is a critical concept in assessing the safety of confined spaces and determining the necessary precautions and protective measures to be taken.

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  • 9. 

    Atmospheres that contain a flammable component above what percent of its Lower Explosive Limit (LEL) are considered hazardous for confined space entry?

    • 10 percent

    • 7.5 percent

    • 7 percent

    • 2.5 percent

    Correct Answer
    A. 10 percent
    Explanation
    Atmospheres that contain a flammable component above 10 percent of its Lower Explosive Limit (LEL) are considered hazardous for confined space entry.

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  • 10. 

    WORK PERMIT FOR CONFINED SPACE WORK SR is

    • [SR][SMS][020204]

    • [SR][SMS][020203]

    • [SR][SMS][020201]

    • [SR][SMS][020202]

    Correct Answer
    A. [SR][SMS][020203]
    Explanation
    The correct answer is [SR][SMS][020203]. This answer is correct because [SR][SMS][020203] specifically refers to the work permit for confined space work. The other options [SR][SMS][020204], [SR][SMS][020201], and [SR][SMS][020202] do not mention confined space work, so they are not the correct answer.

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

  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • May 23, 2019
    Quiz Created by
    Hari
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