NEBOSH HSE PSM QUESTIONS AND
ANSWERS.
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...
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).
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.
NEBOSH HSE PSM Page 1
, NEBOSH HSE PSM
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.
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.
NEBOSH HSE PSM Page 2
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