NEBOSH HSE PSM UPDATED EXAM SCRIPT QUESTIONS
AND SOLUTIONS RATED A+
✔✔Condition monitoring - ✔✔A maintenance strategy whereby the operator looks at
indicators that could demonstrate equipment is not, or will not be, working as intended
✔✔Planned Preventative Maintenance - ✔✔A proactive maintenance system whereby
inspections and checks are carried out before failures occur, to minimise the risk of
plant impact.
✔✔Permit-to-work system - ✔✔A formal, documented procedure that forms part of a
safe system of work, including that correct precautions are in place and all those who
need to know about the work are informed.
✔✔key types of permit-to-work - ✔✔Isolation/general; hot work; cold work; electrical;
confined space
✔✔Isolation/general; hot work; cold work; electrical; confined space - ✔✔What are the 5
key types of permit-to-work?
✔✔Cold work - ✔✔Work which can generate a risk of ignition without a flame or glowing
surface, such as drilling, cutting metal etc
✔✔Hot work - ✔✔Work that could generate a flame or hot surface, such as use of blow
torch
✔✔Failure Mode Effect Analysis - ✔✔A study used to brainstorm how a component or
system might fail, the potential effects/consequences of those failures, existing
safeguards and whether more need to put in place
✔✔Safe Operating Envelope (SOE) - ✔✔The limits of the operating conditions under
which a process can take place safety (e.g. temperature, pressure, volume)
✔✔Pressure Relief Valve - ✔✔A relief device on a on a liquid filled vessel that opens
gradually in proportion to any increase in pressure over a pre-set amount
✔✔Pressure Safety Valve - ✔✔A relief device fitted on a vessel containing a
compressible fluid or gas that opens fully and suddenly when a set pressure is reached
✔✔Standard Operating Procedure (SOP) - ✔✔A documented step-by-step
explanation/instruction on how to conduct specific parts of the operating process
✔✔Planned; unplanned; emergency; staged; delayed - ✔✔What are the 5 types of
start-up/shut-down?
, ✔✔Types of start-up/shut-down - ✔✔Planned; unplanned; emergency; staged; delayed
✔✔Planned start-up/shut-down - ✔✔A normal operation where start-up or shut-down
follow pre-determined sequence to bring the plant up to operating conditions and shut it
down safely
✔✔Turnaround shut-down - ✔✔Planned closure of plant for periodical maintenance and
replacements
✔✔Unplanned shut-down - ✔✔Shut-down due to e.g. equipment malfunction, power
failure, operator error or similar unexpected event
✔✔Emergency shut-down - ✔✔Shut-down that happens when a hazardous situation
develops and action is taken (either manually or automatically) to shut the plant down
✔✔Staged start-up/shut-down - ✔✔Type of start-up/shut-down to ensure there is a
progressive implementation of process according to both operational and safety
requirements, or a progressive turning off of processes so that key safety barriers are
left on last
✔✔Delayed start-up/shut-down - ✔✔A situation where an issue has been raised (e.g.
leaking valve) but an assessment is made that the situation can be controlled until and
appropriate full/partial shut-down can be dealt with.
✔✔Safety Critical Element (SCE) - ✔✔Any part of an installation whose failure could
cause or contribute substantially to, or whose purpose of which it is to prevent or limit
the effects of, a major accident
✔✔Performance standard (PS) - ✔✔An agreed standard that is set, and against which
actual performance is measured and judged
✔✔Management of Change - ✔✔A management control approach to make sure that
proposed changes are properly assessed and authorised
✔✔Process Hazard Analysis (PHA) - ✔✔A systematic analysis of the hazards (and their
potential causes and consequences) relevant to a particular process.
✔✔HAZOP, What-if, FMEA - ✔✔What types of techniques might a Process Hazard
Analysis use?
✔✔Answer: Process Hazard Analysis - ✔✔What should a pre-start-up safety review be
based on?
AND SOLUTIONS RATED A+
✔✔Condition monitoring - ✔✔A maintenance strategy whereby the operator looks at
indicators that could demonstrate equipment is not, or will not be, working as intended
✔✔Planned Preventative Maintenance - ✔✔A proactive maintenance system whereby
inspections and checks are carried out before failures occur, to minimise the risk of
plant impact.
✔✔Permit-to-work system - ✔✔A formal, documented procedure that forms part of a
safe system of work, including that correct precautions are in place and all those who
need to know about the work are informed.
✔✔key types of permit-to-work - ✔✔Isolation/general; hot work; cold work; electrical;
confined space
✔✔Isolation/general; hot work; cold work; electrical; confined space - ✔✔What are the 5
key types of permit-to-work?
✔✔Cold work - ✔✔Work which can generate a risk of ignition without a flame or glowing
surface, such as drilling, cutting metal etc
✔✔Hot work - ✔✔Work that could generate a flame or hot surface, such as use of blow
torch
✔✔Failure Mode Effect Analysis - ✔✔A study used to brainstorm how a component or
system might fail, the potential effects/consequences of those failures, existing
safeguards and whether more need to put in place
✔✔Safe Operating Envelope (SOE) - ✔✔The limits of the operating conditions under
which a process can take place safety (e.g. temperature, pressure, volume)
✔✔Pressure Relief Valve - ✔✔A relief device on a on a liquid filled vessel that opens
gradually in proportion to any increase in pressure over a pre-set amount
✔✔Pressure Safety Valve - ✔✔A relief device fitted on a vessel containing a
compressible fluid or gas that opens fully and suddenly when a set pressure is reached
✔✔Standard Operating Procedure (SOP) - ✔✔A documented step-by-step
explanation/instruction on how to conduct specific parts of the operating process
✔✔Planned; unplanned; emergency; staged; delayed - ✔✔What are the 5 types of
start-up/shut-down?
, ✔✔Types of start-up/shut-down - ✔✔Planned; unplanned; emergency; staged; delayed
✔✔Planned start-up/shut-down - ✔✔A normal operation where start-up or shut-down
follow pre-determined sequence to bring the plant up to operating conditions and shut it
down safely
✔✔Turnaround shut-down - ✔✔Planned closure of plant for periodical maintenance and
replacements
✔✔Unplanned shut-down - ✔✔Shut-down due to e.g. equipment malfunction, power
failure, operator error or similar unexpected event
✔✔Emergency shut-down - ✔✔Shut-down that happens when a hazardous situation
develops and action is taken (either manually or automatically) to shut the plant down
✔✔Staged start-up/shut-down - ✔✔Type of start-up/shut-down to ensure there is a
progressive implementation of process according to both operational and safety
requirements, or a progressive turning off of processes so that key safety barriers are
left on last
✔✔Delayed start-up/shut-down - ✔✔A situation where an issue has been raised (e.g.
leaking valve) but an assessment is made that the situation can be controlled until and
appropriate full/partial shut-down can be dealt with.
✔✔Safety Critical Element (SCE) - ✔✔Any part of an installation whose failure could
cause or contribute substantially to, or whose purpose of which it is to prevent or limit
the effects of, a major accident
✔✔Performance standard (PS) - ✔✔An agreed standard that is set, and against which
actual performance is measured and judged
✔✔Management of Change - ✔✔A management control approach to make sure that
proposed changes are properly assessed and authorised
✔✔Process Hazard Analysis (PHA) - ✔✔A systematic analysis of the hazards (and their
potential causes and consequences) relevant to a particular process.
✔✔HAZOP, What-if, FMEA - ✔✔What types of techniques might a Process Hazard
Analysis use?
✔✔Answer: Process Hazard Analysis - ✔✔What should a pre-start-up safety review be
based on?
