Health, Safety & Environment Module 2.1
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Questions and Answers

What is one of the main purposes of accident causation theories?

  • To identify the root causes of all injuries.
  • To predict future accidents with certainty.
  • To explain why people make mistakes.
  • To provide a classification system for analyzing accidents. (correct)
  • Which of the following is NOT a widely known accident causation theory?

  • Human Error/Factors Theory
  • Probability Theory (correct)
  • Heinrich's Domino Theory
  • Accident/Incident Theory
  • According to Heinrich's Domino Theory, what is considered the immediate cause of an accident?

  • Social environment
  • Unsafe acts or conditions (correct)
  • Undesirable traits
  • Ancestry
  • Which accident causation theory emphasizes the role of individual behavior and mistakes in causing accidents?

    <p>Human Error/Factors Theory (D)</p> Signup and view all the answers

    What is the significance of "near misses" in relation to accident causation?

    <p>They indicate potential hazards that need to be addressed. (D)</p> Signup and view all the answers

    How can accident causation theories contribute to accident prevention?

    <p>By identifying contributing factors and implementing preventive measures. (D)</p> Signup and view all the answers

    What does the phrase "Think of accidents as being caused, rather than occurring by chance..." suggest?

    <p>Accidents are a result of a series of interconnected events. (C)</p> Signup and view all the answers

    Why is it important to have a logical and objective system for analyzing accidents?

    <p>To create a standardized approach to accident investigation. (B)</p> Signup and view all the answers

    Which of the following is NOT considered a direct cost of an accident?

    <p>Training costs for new/replacement workers (C)</p> Signup and view all the answers

    What is the main message conveyed by the phrase "One Model Does Not Fit All" in the context of accident investigation?

    <p>Different accidents may require different investigation approaches. (B)</p> Signup and view all the answers

    According to the Iceberg Model for Costs of Accidents, what is the relationship between direct and indirect costs?

    <p>Indirect costs are often significantly greater than direct costs. (C)</p> Signup and view all the answers

    Which of these BEST describes the importance of understanding different accident investigation theories?

    <p>It allows safety personnel to choose the most appropriate theory for each specific situation. (B)</p> Signup and view all the answers

    What is a potential consequence of neglecting to consider indirect costs in an accident analysis?

    <p>The impact of the accident on the organization's reputation may be underestimated. (A)</p> Signup and view all the answers

    According to Petersen's Accident/Incident Theory, what is the most direct cause of an accident?

    <p>Human Error (A)</p> Signup and view all the answers

    What is a key factor that contributes to 'Decision to Err' in Petersen's Accident/Incident Theory?

    <p>Unrealistic expectations for the work (C)</p> Signup and view all the answers

    Which of these is NOT considered a component of 'Overload' according to Petersen's Accident/Incident Theory?

    <p>Noise (C)</p> Signup and view all the answers

    Systems Theory emphasizes the role of _______ in accident causation.

    <p>Interactions between person, machine, and workplace environment (B)</p> Signup and view all the answers

    According to the Systems Theory, what can lead to an increased risk of accidents?

    <p>Introducing new machinery (A)</p> Signup and view all the answers

    In the Systems Theory, 'Stressor' refers to:

    <p>Factors that impair decision-making and information collection (A)</p> Signup and view all the answers

    Which theory emphasizes that accidents can arise from a combination of factors from different theories?

    <p>Combination Theory (A)</p> Signup and view all the answers

    Which theory explicitly addresses the role of management in accident causation?

    <p>Petersen's Accident/Incident Theory (B)</p> Signup and view all the answers

    Which of the following is NOT a factor contributing to human error, according to the provided content?

    <p>Lack of motivation (D)</p> Signup and view all the answers

    What are the two main classifications of human error, according to the content?

    <p>Errors of omission and errors of commission (C)</p> Signup and view all the answers

    Which of the following is NOT an example of an inappropriate activity that can lead to accidents, according to the Human Factors Theory?

    <p>Using a personal mobile phone while operating machinery (C)</p> Signup and view all the answers

    According to the provided content, how can human factors theory help prevent accidents?

    <p>By identifying and addressing mismatches between people, tools, technology, environment, job, and organization (A)</p> Signup and view all the answers

    What is the primary difference between Human Factors Theory and Accident/Incident Theory?

    <p>Human Factors Theory is a broader theory, while Accident/Incident Theory is a more specific application of Human Factors Theory. (D)</p> Signup and view all the answers

    Which of the following factors is NOT considered an internal factor contributing to human error, according to the provided content?

    <p>Inadequate training (A)</p> Signup and view all the answers

    What is the BEST description of the concept of 'overloading' in the context of Human Factors Theory?

    <p>Excessive workload that overwhelms processing capacity (D)</p> Signup and view all the answers

    Why are errors considered undesirable in the context of Human Factors Theory?

    <p>They can lead to accidents and jeopardize safety (D)</p> Signup and view all the answers

    According to Heinrich's Domino Theory, what percentage of accidents are due to unsafe conditions?

    <p>10% (C)</p> Signup and view all the answers

    What is one example of an unsafe act mentioned in the content?

    <p>Failure to wear PPE (C)</p> Signup and view all the answers

    What is a central point of Heinrich's Domino Theory?

    <p>Accidents are caused by the action of preceding factors. (A)</p> Signup and view all the answers

    According to Heinrich's Domino Theory, what is the primary focus for accident prevention?

    <p>Identifying and eliminating unsafe acts and conditions. (B)</p> Signup and view all the answers

    What does the term "LTI" stand for in the context of Heinrich's Domino Theory?

    <p>Lost-Time Injury (A)</p> Signup and view all the answers

    Which of the following is NOT an example of an unsafe condition mentioned in the content?

    <p>Horseplay (D)</p> Signup and view all the answers

    What does the Human Factors Theory attribute accidents to?

    <p>A chain of events ultimately caused by human error. (C)</p> Signup and view all the answers

    Based on the information provided, which of the following is a typical injury resulting from accidents?

    <p>Lacerations (C)</p> Signup and view all the answers

    What are the two fundamental components that define an accident?

    <p>The event and the consequences (C)</p> Signup and view all the answers

    Which scenario best exemplifies an 'incident' as defined in the content?

    <p>A machine breaks down during production, causing a delay. (D)</p> Signup and view all the answers

    What critical aspect is emphasized when investigating accidents to facilitate prevention?

    <p>Focusing on the immediate cause and the underlying factors that contributed. (A)</p> Signup and view all the answers

    Why is it crucial to study how accidents occur?

    <p>To understand the underlying causes and implement strategies for prevention. (A)</p> Signup and view all the answers

    Which of the following is NOT a consequence of an accident, as defined in the content?

    <p>Increased job satisfaction (A)</p> Signup and view all the answers

    In the provided example of the nail incident, what is the immediate cause of the accident?

    <p>The nail being fired from the tool, striking the victim. (C)</p> Signup and view all the answers

    What is the primary message conveyed by the statement "To seek not only the immediate causes but also the prior conditions and underlying causes of accidents"?

    <p>Accidents are complex events with multiple contributing factors. (A)</p> Signup and view all the answers

    What is the main purpose of understanding accident causation theories?

    <p>To provide a framework for analyzing accident data and identifying root causes. (D)</p> Signup and view all the answers

    Flashcards

    Accident

    An unintended event causing harm to people or property.

    Incident

    An observable unwanted event that can negatively impact people or processes.

    Causes of Accidents

    Immediate and underlying conditions that lead to accidents.

    Preventing Accidents

    Understanding how accidents happen to prevent similar occurrences.

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    Nature of Accidents

    Accidents consist of an event and its consequences, such as injury or damage.

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    Training Importance

    Proper training is crucial to avoid accidents during hazardous tasks.

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    Personal Protective Equipment (PPE)

    Gear worn to minimize exposure to hazards.

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    Cost of Accidents

    Financial and human costs associated with accidents, including injuries and damages.

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    Human Factors Theory

    Theory examining interactions among people, tools, environment, job, and organization to prevent accidents.

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    Human Error

    An inappropriate decision or action that negatively affects performance or safety; not due to chance.

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    Errors of Omission

    Failures to perform an action that was intended or needed.

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    Errors of Commission

    Failures resulting from acting inaccurately or improperly.

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    Sequence Errors

    Mistakes made by performing tasks in the wrong order.

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    Timing Errors

    Mistakes made by executing actions at incorrect times or rates.

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    Human Factors Influences

    Overload, inappropriate responses, and activities affected by internal and external factors.

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    Accident/Incident Theory

    Theory extending Human Factors Theory focusing on causes of accidents and incidents.

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    Petersen’s Accident Theory

    A model identifying factors causing accidents, including ergonomic traps and decision errors.

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    Ergonomic Traps

    Conditions in the workspace that lead to discomfort or inefficiency, increasing accident risk.

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    Decision to Err

    The choice made under pressure or misjudgment that leads to errors in tasks.

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    Systems Theory

    A concept stating that accidents result from interactions between people, machines, and environments.

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    Feedback Loop

    A continuous cycle where the outcomes from decisions inform future actions and adjustments.

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    Combination Theory

    The idea that the cause of an accident may involve multiple contributing factors from different theories.

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    Stressor

    Factors that hinder judgment and worsen decision-making in potentially risky scenarios.

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    One Model Does Not Fit All

    No single model can explain all accidents; multiple theories are needed.

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    Iceberg Model for Costs

    Direct costs are visible like the tip of an iceberg; indirect costs are hidden and often greater.

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    Direct Costs

    Immediate costs of an accident that are easy to quantify, like medical expenses and insurance claims.

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    Indirect Costs

    Hidden costs stemming from accidents, often significantly higher than direct costs, including lost productivity and training.

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    Accident Causation Theories

    Frameworks that help identify and prevent accidents by analyzing causes.

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    Heinrich’s Domino Theory

    A theory that illustrates how one event can trigger a chain of related accidents.

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    Classification System Purpose

    To provide a universal logical structure for analyzing accidents.

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    Hazard Identification Role

    Helps in identifying potential dangers using a structured approach.

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    Accident Investigation Aids

    Ensures investigations are based on rational arguments and logical reasoning.

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    Negative Character Traits

    Traits inherited or learned that lead to unsafe acts or conditions.

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    Unsafe Acts or Conditions

    Direct causes of accidents stemming from behaviors or environmental factors.

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    Near Misses

    Incidents where no damage occurs but could have easily led to an accident.

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    Heinrich's Domino Theory

    A theory stating that accidents occur due to unsafe acts and conditions, which can be removed to prevent injuries.

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    Accident Causes

    Heinrich categorized accident causes: 88% due to unsafe acts, 10% unsafe conditions, 2% unpreventable.

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    Unsafe Acts

    Actions that increase the risk of accidents, such as bypassing safety devices or not wearing PPE.

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    Unsafe Conditions

    Environmental factors contributing to accidents, including defective tools and poor ventilation.

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    Lost-Time Injury (LTI)

    An injury that results in an employee being unable to perform their regular work duties.

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    Preventing Injuries

    By removing unsafe acts or conditions, we can prevent accidents and injuries.

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    Types of Unsafe Acts

    Examples include unauthorized SOP deviations, horseplay, and using defective equipment.

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    Study Notes

    Health, Safety & Environment (CDB 1012/CЕВ 1032)

    • Course is about accident causations, definitions, theories, and the price to pay.
    • Module 2.1 focuses on accident causations.

    Lecture Contents & Outcomes

    • Understanding accidents and incidents
    • The reason for learning about accident causation theories
    • Learning the underlying messages in different theories, their similarities, and differences
    • Understanding the cost of accidents

    What is an Accident?

    • An unintended or unplanned event
    • Characterized by unacceptable consequences, such as injury or damage
    • Any unwanted event leading to harm to people, property, or processes
    • Incident is an observable human activity creating an unwanted event with a negative impact

    Example of a Workplace Accident

    • A carpenter's apprentice was killed by a nail fired from a power tool.
    • The tool operator didn't receive proper training.
    • No personal protective equipment (PPE) was worn.

    Why do we need to know how accidents happen?

    • To prevent future accidents
    • To understand immediate causes and underlying causes of accidents
    • To focus on how to prevent similar incidents

    Nature Of Accidents

    • The event itself that needs to be prevented to prevent consequences
    • "Near misses" (no actual damage) are also relevant
    • The final loss (e.g., injury, death) resulting from an accident
    • Consequences may not be immediately obvious

    Accident Causation Theories

    • Theory is the bridge between experiment and practice.
    • Good accident theories identify problems for targeted prevention efforts
    • Accidents are caused, not random
    • Engineering techniques can be applied to prevent accidents
    • Provide a classification system to categorize and analyze accidents
    • Provide a logical framework for identifying hazards
    • Ensure accident investigations are based on logical reasoning

    Accident Causation Theories - Examples

    • Heinrich's Domino Theory: Accidents result from a series of factors that trigger injury; the sequence begins with social environment and undesirable traits, followed by unsafe acts or conditions leading to an accident, concluding with injury
    • Human Error Theory: Accidents are caused by a chain of events ultimately due to human failure; interactions between people, tools, technology, environment, jobs, and organization causes mismatches that lead to either accidents or solutions to prevent them
    • Accident/Incident Theory: Extends Human Factors Theory, encompassing ergonomic traps (uncomfortable workstation) and decision-making errors (misjudging risk). Also assesses the management's role in accidents
    • Systems Theory: Likelihood of an accident depends on interactions between the person, the machine, and the workplace environment; aspects like the change in working schedule, noise, new machinery can affect likelihood of accident
    • Combination Theory: Actual causes are combinations of several theories; safety professionals must analyze the contributing factors in accidents and not rely on a single theory (one model does not fit all)

    Cost of Accident

    • Accidents have direct and indirect costs (the iceberg model)
    • Direct costs are easier to quantify (e.g., insurance claims, medical expenses)
    • Indirect costs are harder to quantify but often significantly greater than direct costs (e.g., time lost, training costs for new workers)

    Summary

    • Many theories provide insight into accident situations.
    • Identifying the underlying messages and similarities/differences among theories is crucial.

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    Description

    This quiz focuses on Module 2.1 of the Health, Safety & Environment course, which delves into accident causations. Participants will explore various theories, definitions, and underlying messages related to accidents. Understanding these concepts is crucial for recognizing the impacts of accidents in the workplace.

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