Construction Safety Quiz Questions

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Construction Safety Quiz Questions - Quiz

When you see a construction site you will not just expect to get construction materials you will also get construction tools that each person is expected to understand fully. How safe do you think you would be in a construction site? Take up this construction safety quiz and see if you will survive a day in the construction business. Good luck!


Questions and Answers
  • 1. 

    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. Excavations involve digging and creating open spaces in the ground, which can destabilize the surrounding soil and lead to the collapse of the excavation walls. This can result in workers being buried or trapped under the debris, causing serious injuries or even death. Cave-ins are a significant hazard that requires proper safety measures and precautions to prevent accidents and protect workers in excavation sites.

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  • 2. 

    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 indications or warnings, making them extremely dangerous. It is crucial to take necessary precautions and ensure safety measures when working in areas prone to cave-ins.

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  • 3. 

    _______ 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, the soil is less likely to collapse and cave in, providing a safer working environment for workers. This technique involves cutting the sides of the excavation at a specific angle, typically 1.5:1 or 2:1, depending on the soil type and other factors. Sloping helps to distribute the weight of the soil and reduces the pressure on the excavation walls, reducing the risk of collapse.

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  • 4. 

    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 rainfall or extreme temperatures can impact the stability of the soil, increasing the risk of trench collapse. In areas prone to strong winds or hurricanes, additional measures may need to be taken to ensure the protection system can withstand such forces. Similarly, in regions with freezing temperatures, the design may need to account for frost heave. Therefore, considering the weather and climate is crucial in designing an effective trench protective system.

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  • 5. 

    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 that restricts vehicle access. Hand and mechanical signals can be used to communicate with drivers and ensure they are aware of the excavation and the need to avoid it. Berms and stop logs can be placed around the excavation to provide an additional physical barrier. Sloping the soil away from the excavation can also help prevent vehicles from accidentally driving into it by creating a noticeable incline.

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  • 6. 

    How far away from an excavation should spoils be placed?

    • A.

      Right next to excavation as long as it doesn't 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
    Spoils should be placed at least 2 feet away from the excavation to ensure safety. Placing them right next to the excavation can be risky as there is a possibility of them falling back in, which can cause accidents or injuries. Keeping a distance of at least 2 feet provides a buffer zone and minimizes the chances of spoils falling back into the excavation site. This distance helps to maintain a safe working environment for the excavator and other workers.

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  • 7. 

    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 because it may not reach the desired height and could be unstable. Looking at the soil type, the walls of the cut should be sloped to prevent collapse and ensure safety. The ladder should be cleaned off to remove any dirt or debris that could cause slipping or instability. Employees should never be exposed to an excavation that could collapse as it poses a significant risk to their safety.

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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 to ensure safety. Excavations can be hazardous due to the risk of cave-ins, falling objects, or hazardous atmospheres. Regular inspections by a competent person help identify potential dangers and take necessary precautions to prevent accidents. By inspecting the excavation daily, any changes or issues can be promptly addressed, minimizing the risk of accidents and ensuring the safety of workers and others in the vicinity.

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  • 9. 

    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 associated with excavation. Constructing protective systems, such as shoring or shielding, is necessary to prevent cave-ins and protect workers. Utility locate is essential to identify the presence of underground utilities and 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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  • 10. 

    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 is able to withstand the highest amount of pressure before it starts to compress or deform. The other soil types (B, C, D, and None of the Above) have lower compressive strength ratings, indicating that they are not as strong as Type A soil in terms of resisting compression.

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  • 11. 

    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 hazards in this picture include 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 risks to the safety of individuals present in the area.

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  • 12. 

    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, has insufficient means of egress, and has unacceptable shoring. These violations pose serious safety risks to workers. Without barriers, unauthorized individuals may enter the trench and be at risk of injury or death. Insufficient means of egress means that workers may not have a safe and easily accessible way to exit the trench in case of an emergency. Unacceptable shoring means that the trench walls are not properly supported, increasing the likelihood of a collapse. Overall, all the options listed are violations and contribute to the trench being in violation.

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Quiz Review Timeline +

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

  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 19, 2008
    Quiz Created by
    Kiewitsafe
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