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NEBOSH HSE PSM Question and answers already passed
Question : Definition of Process Safety Management
Correct answer: 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.
Question : Sources of Process Safety Management
information:
Correct answer: 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.
Question : Management Of Change - MOC
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Correct answer: MOC is a management control approach to
make sure that proposed changes are properly assessed and authorized.
Question : Management Of Change - MOC - Requirements:
Correct answer: Hazard and Risk Analysis. Process for all
changes to be authorized. Changes documented. Consult and inform. Training.
Question : Workers Consultation
Correct answer: The two-way exchange of information
between parties. In this case, between employer and worker.
Question : Definition of Competence
Correct answer: A combination of practical and thinking
skills, experience and knowledge.
Question : Elements of a Process Safety Management System
Correct answer: 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
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Investigations. Element 10: Performance Monitoting and
Auditing.
Question : Leading Indicators
Correct answer: Proactive measurements of conditions that
monitor process safety before something goes wrong and to see if things are operating as intended.
Question : Lagging Indicators
Correct answer: 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.
Question : Five Steps for Risk Assessment
Correct answer: 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.
Question : Risk Assessment Techniques
Correct answer: 5 WHs: What, Where, When, How, Why.Bow Tie Model. Hazard and operability study (HAZOP).
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Hazard Identification (HAZID). Failure Mode Effect Analysis (FMEA). Even Tree Analysis (ETA). What If.
Question : Hierarchy of risk controls in process safety
management
Correct answer: Inherent safety. Elimination (including
minimised inventories). Substitution. Engineering controls (including segregation and spacing of process plant).Administrative controls (procedural/behavioural).
Question : Asset Integrity
Correct answer: The ability of the equipment or asset to
operate as intended effectively and efficiently over its entire lifespan while ensuring the health and safety of those exposed to it, including the environment.
Question : Asset Life Cycle
Correct answer: Phase 1 - Design. Phase 2 - Procurement,
construction, installation and testing. Phase 3 - Commissioning. Phase 4 - Operations. Phase 5 - Modifications. Phase 6 - Decommissioning.