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NEBOSH HSE PSM QUESTIONS WITH COMPLETE SOLUTIONS
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NEBOSH HSE PSM QUESTIONS WITH COMPLETE SOLUTIONS
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NEBOSH HSE PSM QUESTIONS WITHCOMPLETE SOLUTIONS
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.
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.
Step 3: Evaluate the risk and decide on precautions.
Step 4: Record the significant findings.
Step 5: Review and update as necessary.
- Risk Assessment Techniques - -5 WHs: What, Where, When, How, Why.
Bow Tie Model.
Hazard and operability study (HAZOP).
Hazard Identification (HAZID).
Failure Mode Effect Analysis (FMEA).
Even Tree Analysis (ETA).
What If.
- Hierarchy of risk controls in process safety management - -Inherent
safety.
Elimination (including minimised inventories).
Substitution.
Engineering controls (including segregation and spacing of process plant).
Administrative controls (procedural/behavioural).
- Asset Integrity - -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.
- Asset Life Cycle - -Phase 1 - Design.
Phase 2 - Procurement, construction, installation and testing.
Phase 3 - Commissioning.
Phase 4 - Operations.
Phase 5 - Modifications.
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