1
NEBOSH IOG Exam : Element 1 Complete
Questions and Correct Detailed Answers
(Verified Answers)
Question: Explain why accident investigations are carried out
Ans: 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.
Question: List the four steps in the investigation process
Master01 | 2025/2026 | Latest update
, 2
Ans: 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.
Step 4:
Plan the remedial actions.
Question: Identify the categories of staff who might be considered
useful members of an internal accident investigation team.
Master01 | 2025/2026 | Latest update
, 3
Ans: 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.
Question: List the types of documentation which might be consulted
during an accident investigation.
Master01 | 2025/2026 | Latest update
NEBOSH IOG Exam : Element 1 Complete
Questions and Correct Detailed Answers
(Verified Answers)
Question: Explain why accident investigations are carried out
Ans: 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.
Question: List the four steps in the investigation process
Master01 | 2025/2026 | Latest update
, 2
Ans: 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.
Step 4:
Plan the remedial actions.
Question: Identify the categories of staff who might be considered
useful members of an internal accident investigation team.
Master01 | 2025/2026 | Latest update
, 3
Ans: 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.
Question: List the types of documentation which might be consulted
during an accident investigation.
Master01 | 2025/2026 | Latest update
