NEBOSH HSE PSM Exam Questions and
Answers 100% Solved | Graded
NEBOSH HSE Certificate in Process Safety Management (PSM1)
Exam Duration: 90 Minutes
Marks: 40 (1 mark per question)
Pass Mark: 60% (24 marks)
Instructions: Select the one correct Answer for each question from the four options
provided.
Section A: Process Safety Leadership & Management Systems
1. According to the NEBOSH PSM syllabus, what is the primary definition of Process Safety
Management (PSM)?
• A) The management of personal protective equipment for chemical handling.
• B) A management system focused solely on reducing slip and trip hazards in
processing plants.
• C) A blend of engineering and management skills focused on preventing catastrophic
accidents and near misses.
• D) The administrative process of filing safety data sheets.
Answer: C
Rationale: The NEBOSH definition clearly defines PSM as a blend of engineering and
management skills focused on preventing catastrophic accidents (fires, explosions, toxic
releases) and near misses associated with loss of containment . Options A and B refer to
occupational safety (personal safety), while D is only an administrative task, not the
definition of the whole system.
, 2. Which of the following is a key characteristic of a "Learning Organization" in the context
of process safety leadership?
• A) Punishing workers for reporting minor mistakes to deter future errors.
• B) Reporting only incidents that result in significant financial loss.
• C) A culture that encourages reporting of near misses and incidents to improve safety
systems without blame.
• D) Implementing changes without consulting the workforce to save time.
Answer: C
Rationale: A "Learning Organization" focuses on creating a just culture where near misses
and incidents are reported openly. These are used as learning opportunities to improve
systems rather than blaming individuals . This contrasts with "blame cultures" (A) which hide
failures.
3. A company is planning to replace a carbon steel pipe with a similar plastic pipe. The
plastic pipe has a lower pressure rating. What must happen under a Management of
Change (MOC) procedure?
• A) Nothing, because it is a like-for-like material change.
• B) Only the maintenance manager needs to approve the change.
• C) A hazard and risk analysis must be conducted to assess the new pressure
limitations and material compatibility.
• D) The change is automatically banned because plastic cannot be used in process
plants.
Answer: C
Rationale: MOC procedures require technical review and risk analysis for any changes (even
material changes) that deviate from the original design intent . Since pressure ratings differ,
a hazard analysis is required before authorization. Option A is incorrect as it is not a "like-for-
like" replacement; Option D is false (plastic is used, but must be specified correctly).
4. In the context of worker engagement, what best describes "Consultation"?
• A) Telling workers they must follow a new procedure immediately.
• B) A one-way communication of safety rules from management to staff.
• C) A two-way exchange of information between employer and workers before
decisions are made.
• D) Allowing workers to veto all safety decisions made by management.
Answers 100% Solved | Graded
NEBOSH HSE Certificate in Process Safety Management (PSM1)
Exam Duration: 90 Minutes
Marks: 40 (1 mark per question)
Pass Mark: 60% (24 marks)
Instructions: Select the one correct Answer for each question from the four options
provided.
Section A: Process Safety Leadership & Management Systems
1. According to the NEBOSH PSM syllabus, what is the primary definition of Process Safety
Management (PSM)?
• A) The management of personal protective equipment for chemical handling.
• B) A management system focused solely on reducing slip and trip hazards in
processing plants.
• C) A blend of engineering and management skills focused on preventing catastrophic
accidents and near misses.
• D) The administrative process of filing safety data sheets.
Answer: C
Rationale: The NEBOSH definition clearly defines PSM as a blend of engineering and
management skills focused on preventing catastrophic accidents (fires, explosions, toxic
releases) and near misses associated with loss of containment . Options A and B refer to
occupational safety (personal safety), while D is only an administrative task, not the
definition of the whole system.
, 2. Which of the following is a key characteristic of a "Learning Organization" in the context
of process safety leadership?
• A) Punishing workers for reporting minor mistakes to deter future errors.
• B) Reporting only incidents that result in significant financial loss.
• C) A culture that encourages reporting of near misses and incidents to improve safety
systems without blame.
• D) Implementing changes without consulting the workforce to save time.
Answer: C
Rationale: A "Learning Organization" focuses on creating a just culture where near misses
and incidents are reported openly. These are used as learning opportunities to improve
systems rather than blaming individuals . This contrasts with "blame cultures" (A) which hide
failures.
3. A company is planning to replace a carbon steel pipe with a similar plastic pipe. The
plastic pipe has a lower pressure rating. What must happen under a Management of
Change (MOC) procedure?
• A) Nothing, because it is a like-for-like material change.
• B) Only the maintenance manager needs to approve the change.
• C) A hazard and risk analysis must be conducted to assess the new pressure
limitations and material compatibility.
• D) The change is automatically banned because plastic cannot be used in process
plants.
Answer: C
Rationale: MOC procedures require technical review and risk analysis for any changes (even
material changes) that deviate from the original design intent . Since pressure ratings differ,
a hazard analysis is required before authorization. Option A is incorrect as it is not a "like-for-
like" replacement; Option D is false (plastic is used, but must be specified correctly).
4. In the context of worker engagement, what best describes "Consultation"?
• A) Telling workers they must follow a new procedure immediately.
• B) A one-way communication of safety rules from management to staff.
• C) A two-way exchange of information between employer and workers before
decisions are made.
• D) Allowing workers to veto all safety decisions made by management.
