NEBOSH HSE PSM Exam Questions and
Answers 100% Solved | Graded A+
Definition of Process Safety Management - ✔✔A blend of engineering and
management skills focused on preventing catastrophic accidents and near
misses, particularly structural collapse, explosions, fires and toxic releases
associated with loss of containment of energy or dangerous substances
such as chemicals and petroleum products.
Sources of Process Safety Management information: - ✔✔Safety Data
Sheets (SDS)
Process design criteria.
Process Flow Diagrams (PFD)
Standard Operating procedures (SOPs) setting safe limits, such as for
temperatures, pressures, flows, compositions and levels as well as
evaluation of the effects.
Inspection, audit and investigation reports.
Maintenance records.
Piping and Instrument Diagrams (P&Ids).
1
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,Process Control Systems, including software integrity.
Relief system designs.
Fire detection and protection plans.
Management Of Change - MOC - ✔✔MOC is a management control
approach to make sure that proposed changes are properly assessed and
authorized.
Management Of Change - MOC - Requirements: - ✔✔Hazard and Risk
Analysis.
Process for all changes to be authorized.
Changes documented.
Consult and inform.
Training.
Workers Consultation - ✔✔The two-way exchange of information between
parties. In this case, between employer and worker.
Definition of Competence - ✔✔A combination of practical and thinking
skills, experience and knowledge.
Elements of a Process Safety Management System - ✔✔Element 1: Strong
Leadership.
Element 2: Hazard Analysis.
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, Element 3: Management Of Change.
Element 4: Operation within design intent.
Element 5: Competence management. (Training).
Element 6: Control of Contractors.
Element 7: Asset Integrity.
Element 8: Emergency Response.
Element 9: Process Safety Incident Investigations.
Element 10: Performance Monitoting and Auditing.
Leading Indicators - ✔✔Proactive measurements of conditions that monitor
process safety before something goes wrong and to see if things are
operating as intended.
Lagging Indicators - ✔✔Reactive measures that took at failures, such as
the number of injuries, the number of near misses and the number of spills
that are reported, or excursions where plant is operated outside the
intended operational envelope.
Five Steps for Risk Assessment - ✔✔Step 1: Identify the hazards.
Step 2: Identify the people who might be harmed and how.
Step 3: Evaluate the risk and decide on precautions.
Step 4: Record the significant findings.
Step 5: Review and update as necessary.
3
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
Answers 100% Solved | Graded A+
Definition of Process Safety Management - ✔✔A blend of engineering and
management skills focused on preventing catastrophic accidents and near
misses, particularly structural collapse, explosions, fires and toxic releases
associated with loss of containment of energy or dangerous substances
such as chemicals and petroleum products.
Sources of Process Safety Management information: - ✔✔Safety Data
Sheets (SDS)
Process design criteria.
Process Flow Diagrams (PFD)
Standard Operating procedures (SOPs) setting safe limits, such as for
temperatures, pressures, flows, compositions and levels as well as
evaluation of the effects.
Inspection, audit and investigation reports.
Maintenance records.
Piping and Instrument Diagrams (P&Ids).
1
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
,Process Control Systems, including software integrity.
Relief system designs.
Fire detection and protection plans.
Management Of Change - MOC - ✔✔MOC is a management control
approach to make sure that proposed changes are properly assessed and
authorized.
Management Of Change - MOC - Requirements: - ✔✔Hazard and Risk
Analysis.
Process for all changes to be authorized.
Changes documented.
Consult and inform.
Training.
Workers Consultation - ✔✔The two-way exchange of information between
parties. In this case, between employer and worker.
Definition of Competence - ✔✔A combination of practical and thinking
skills, experience and knowledge.
Elements of a Process Safety Management System - ✔✔Element 1: Strong
Leadership.
Element 2: Hazard Analysis.
2
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
, Element 3: Management Of Change.
Element 4: Operation within design intent.
Element 5: Competence management. (Training).
Element 6: Control of Contractors.
Element 7: Asset Integrity.
Element 8: Emergency Response.
Element 9: Process Safety Incident Investigations.
Element 10: Performance Monitoting and Auditing.
Leading Indicators - ✔✔Proactive measurements of conditions that monitor
process safety before something goes wrong and to see if things are
operating as intended.
Lagging Indicators - ✔✔Reactive measures that took at failures, such as
the number of injuries, the number of near misses and the number of spills
that are reported, or excursions where plant is operated outside the
intended operational envelope.
Five Steps for Risk Assessment - ✔✔Step 1: Identify the hazards.
Step 2: Identify the people who might be harmed and how.
Step 3: Evaluate the risk and decide on precautions.
Step 4: Record the significant findings.
Step 5: Review and update as necessary.
3
©NINJANERD 2025/2026. YEAR PUBLISHED 2025.
