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NEBOSH IOG Exam : Element 1 Questions and
Answers 100% Pass
Explain why accident investigations are carried out - ✔✔Accident investigations are carried out to.
To identify the immediate root causes of the incident - incidents are usually caused by unsafe acts and
unsafe conditions in the workplace, but these often arise from underlying root causes.
To identify corrective actions that will prevent a recurrence - The main reason for investigating.
List the four steps in the investigation process - ✔✔The four steps in the investigation process are.
Step 1:
Gather factual information about the event.
Step 2:
Analyse that information and draw conclusions about the immediate and root causes.
Step 3:
Identify suitable corrective measures.
Created by Katelyn Whitman © 2025, All Rights Reserved.
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Step 4:
Plan the remedial actions.
Identify the categories of staff who might be considered useful members of an internal accident
investigation team. - ✔✔A simple investigation might be carried out by the Line Manager of the area; a
more detailed investigation often involves a team of investigators that might include:
Site HES Team Leads and Safety Advisors
Subject Matter Experts (i.e. a Scaffold Superintendent)
Senior Managers
A worker representative
Offshore investigation teams may also include specialists from services such as drilling, well services,
maintenance, operations and deck crews.
List the types of documentation which might be consulted during an accident investigation. - ✔✔Types of
documentation used during an investigation include:
Permit to Work and Risk Assessments
Photographs and CCTV tapes
Technical Drawings & documentation
Hand drawn sketches of the scene identifying location of incident and surrounding conditions, victim(s)
location, witness location, wind direction
Standard Operating Procedures (SOP) documentation
Created by Katelyn Whitman © 2025, All Rights Reserved.
NEBOSH IOG Exam : Element 1 Questions and
Answers 100% Pass
Explain why accident investigations are carried out - ✔✔Accident investigations are carried out to.
To identify the immediate root causes of the incident - incidents are usually caused by unsafe acts and
unsafe conditions in the workplace, but these often arise from underlying root causes.
To identify corrective actions that will prevent a recurrence - The main reason for investigating.
List the four steps in the investigation process - ✔✔The four steps in the investigation process are.
Step 1:
Gather factual information about the event.
Step 2:
Analyse that information and draw conclusions about the immediate and root causes.
Step 3:
Identify suitable corrective measures.
Created by Katelyn Whitman © 2025, All Rights Reserved.
, 2|Page
Step 4:
Plan the remedial actions.
Identify the categories of staff who might be considered useful members of an internal accident
investigation team. - ✔✔A simple investigation might be carried out by the Line Manager of the area; a
more detailed investigation often involves a team of investigators that might include:
Site HES Team Leads and Safety Advisors
Subject Matter Experts (i.e. a Scaffold Superintendent)
Senior Managers
A worker representative
Offshore investigation teams may also include specialists from services such as drilling, well services,
maintenance, operations and deck crews.
List the types of documentation which might be consulted during an accident investigation. - ✔✔Types of
documentation used during an investigation include:
Permit to Work and Risk Assessments
Photographs and CCTV tapes
Technical Drawings & documentation
Hand drawn sketches of the scene identifying location of incident and surrounding conditions, victim(s)
location, witness location, wind direction
Standard Operating Procedures (SOP) documentation
Created by Katelyn Whitman © 2025, All Rights Reserved.
