Health And Safety In Construction Quiz

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Health And Safety In Construction Quiz - Quiz

This quiz is to test the knowledge of construction employees on their knowledge of safe practices of excavation.


Questions and Answers
  • 1. 

    How is this trench in violation?

    • A.

      No barriers to prevent entry

    • B.

      Insufficient means of egress

    • C.

      Unacceptable Shoring

    • D.

      All of the Above

    • E.

      Looks great.

    Correct Answer
    D. All of the Above
    Explanation
    This trench is in violation because it lacks barriers to prevent entry, which means that unauthorized individuals could enter the trench and potentially be in danger. Additionally, there are insufficient means of egress, which means that workers may not have a safe and easily accessible way to exit the trench in case of an emergency. Lastly, the shoring used in the trench is deemed unacceptable, which means that the trench is not adequately supported and could collapse, posing a serious risk to workers. Therefore, all of the above options are correct and indicate violations in the trench.

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  • 2. 

    What is the hazard in this picture?

    • A.

      There is no hazard

    • B.

      Vibrations from equipment overhead

    • C.

      Possible cave-in

    • D.

      Fumes from overhead equipment

    • E.

      Sloped toward hole at the top of the cut which could allow for falling debris

    Correct Answer(s)
    B. Vibrations from equipment overhead
    C. Possible cave-in
    D. Fumes from overhead equipment
    E. Sloped toward hole at the top of the cut which could allow for falling debris
    Explanation
    The hazard in this picture includes vibrations from equipment overhead, possible cave-in, fumes from overhead equipment, and the slope towards the hole at the top of the cut which could allow for falling debris. These hazards pose potential risks to the safety of individuals in the vicinity.

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  • 3. 

    Which soil type has the greatest compressive strength rating 1.5 tons per square foot?

    • A.

      Type A

    • B.

      Type B

    • C.

      Type C

    • D.

      Type D

    • E.

      None of the Above

    Correct Answer
    A. Type A
    Explanation
    Type A soil has the greatest compressive strength rating of 1.5 tons per square foot. This means that Type A soil can withstand the highest amount of pressure before it starts to compress or deform. The other soil types (B, C, D) have lower compressive strength ratings, indicating that they are not as strong as Type A soil. Therefore, Type A soil is the correct answer in this case.

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  • 4. 

    _______ is a technique used to prevent cave-ins by employing a specific angle on the sides of the excavation.

    Correct Answer
    Sloping
    sloping
    SLOPING
    Slope
    Explanation
    Sloping is a technique used to prevent cave-ins by employing a specific angle on the sides of the excavation. By sloping the sides of the excavation at a specific angle, the soil is stabilized and less likely to collapse. This technique is commonly used in construction and excavation projects to ensure the safety of workers and prevent accidents or injuries caused by cave-ins.

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  • 5. 

    Can weather or climate affect how a trench protective system needs to be designed?

    • A.

      YES

    • B.

      NO

    Correct Answer
    A. YES
    Explanation
    Weather and climate can indeed affect how a trench protective system needs to be designed. Different weather conditions such as heavy rain or snow can increase the risk of trench collapse, requiring additional protective measures such as shoring or shielding. Extreme temperatures can also impact the stability of the soil, making it necessary to adjust the design of the protective system accordingly. Additionally, factors like wind speed and humidity levels can influence the choice of materials and construction techniques used in the trench protective system. Therefore, weather and climate considerations are crucial in designing an effective and safe trench protective system.

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  • 6. 

    What can be done to prevent vehicles from entering an excavation? Mark all that apply.

    • A.

      Install Barricades

    • B.

      Hand and Mechanical Signals

    • C.

      Put yourself in front of the vehicle

    • D.

      Berms and Stop Logs

    • E.

      Slope Soil away from Excavation

    Correct Answer(s)
    A. Install Barricades
    B. Hand and Mechanical Signals
    D. Berms and Stop Logs
    E. Slope Soil away from Excavation
    Explanation
    To prevent vehicles from entering an excavation, several measures can be taken. Installing barricades can create a physical barrier to restrict vehicle access. Hand and mechanical signals can be used to communicate with drivers and ensure they are aware of the excavation. Berms and stop logs can be placed around the excavation to further prevent accidental entry. Sloping the soil away from the excavation can also discourage vehicles from approaching the area. These measures work together to enhance safety and prevent vehicles from entering the excavation site.

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  • 7. 

    What needs to be done before you start to excavate?

    • A.

      Evaluate soil conditions.

    • B.

      Construct protective systems.

    • C.

      Utility locate

    • D.

      Provide safe access

    • E.

      All of the Above

    Correct Answer
    E. All of the Above
    Explanation
    Before starting to excavate, several steps need to be taken to ensure safety and efficiency. Evaluating soil conditions is crucial to determine the stability and potential risks of the excavation site. Constructing protective systems such as shoring or trench boxes helps prevent cave-ins and provides a safe working environment. Utility locate is necessary to identify and mark any underground utilities to avoid damaging them during excavation. Providing safe access ensures that workers can enter and exit the excavation site safely. Therefore, all of the above steps need to be done before starting to excavate.

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  • 8. 

    Does this excavation need to be inspected every day by a competent person?

    • A.

      Yes

    • B.

      No

    Correct Answer
    A. Yes
    Explanation
    This excavation needs to be inspected every day by a competent person because daily inspections are crucial to ensure the safety of the site. A competent person can identify any potential hazards, monitor the stability of the excavation, and take necessary actions to prevent accidents or collapses. Regular inspections help to maintain a safe working environment and minimize risks for workers and surrounding areas.

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  • 9. 

    Which of the following is the greatest risk of an excavation?

    • A.

      Asphxiation

    • B.

      Inhalation of toxic materials

    • C.

      Fire

    • D.

      Moving Machinery

    • E.

      Cave-ins

    Correct Answer
    E. Cave-ins
    Explanation
    Cave-ins pose the greatest risk in an excavation because they can lead to serious injuries or fatalities. Excavations involve digging into the ground, which can weaken the surrounding soil or rock structures. If the walls or roof of the excavation collapse, workers can be trapped or buried under the debris. This can cause suffocation, crush injuries, or even death. Therefore, it is crucial to take proper safety measures, such as shoring or sloping the excavation walls, to prevent cave-ins and protect workers.

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  • 10. 

    Check all the apply?

    • A.

      The ladder is too short and should be an extension ladder not a step ladder

    • B.

      Looking at the soil type the walls of the cut should be sloped

    • C.

      The ladder should be cleaned off

    • D.

      Employees should never be exposed to an excavation that could collapse

    • E.

      Looks good to me

    Correct Answer(s)
    A. The ladder is too short and should be an extension ladder not a step ladder
    B. Looking at the soil type the walls of the cut should be sloped
    C. The ladder should be cleaned off
    D. Employees should never be exposed to an excavation that could collapse
    Explanation
    The ladder is too short and should be an extension ladder not a step ladder, indicating that the current ladder is not suitable for the task at hand and a different type of ladder should be used. Looking at the soil type, the walls of the cut should be sloped, suggesting that the current shape of the cut is not safe and needs to be modified. The ladder should be cleaned off, implying that there is dirt or debris on the ladder that could pose a safety hazard. Lastly, employees should never be exposed to an excavation that could collapse, emphasizing the importance of ensuring the safety of workers in potentially dangerous situations.

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  • 11. 

    How far away from an excavation should spoils be placed?

    • A.

      Right next to excavation as long as it doesnt fall back in.

    • B.

      At least 2 feet from the excavation.

    • C.

      Wherever is the most convenient.

    • D.

      Within a foot to allow for reach of excavator.

    Correct Answer
    B. At least 2 feet from the excavation.
    Explanation
    The correct answer is "At least 2 feet from the excavation." This distance is necessary to ensure the stability and safety of the excavation site. Placing the spoils too close to the excavation can increase the risk of collapse or cave-in. By keeping a minimum distance of 2 feet, there is a reduced chance of the spoils falling back into the excavation and causing potential hazards for workers or equipment.

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  • 12. 

    There is usually warning before a cave-in.

    • A.

      TRUE

    • B.

      FALSE

    Correct Answer
    B. FALSE
    Explanation
    The statement is false because there is usually no warning before a cave-in. Cave-ins can occur suddenly and without any prior indication, making them extremely dangerous. It is important to take necessary precautions and ensure safety measures are in place when working in or around areas prone to cave-ins.

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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
  • Aug 24, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 19, 2008
    Quiz Created by
    Kiewit
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