NEBOSH PSM UPDATED TEST ANSWERS AND
QUESTIONS SET A+
✔✔FMEA - ✔✔Failure Mode and Effects Analysis, how components or systems fail, the
potential effects/consequences of those failures, existing safeguards against those
failure modes and whether more should be in place.
✔✔RPN - ✔✔Risk Priority Number - part of FMEA steps - gives you the ability to rank
causes (inputs)
✔✔ETA - ✔✔Event tree analysis, evaluate the mitigation measures that will operate
after an event and work forward in time to see what protective measures will operate
✔✔Double block and bleed - ✔✔The closure of a line, duct, or pipe by closing and
locking or tagging two in-line valves and by opening and locking or tagging a drain or
vent valve in the line between the two closed valves.
✔✔Asset - ✔✔An item of equipment, or an area of production plant
✔✔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.
✔✔ATEX - ✔✔Explosive in atmosphere
✔✔Asset Integrity through life cycle - ✔✔1. Design
2. Procurement, construction, installation and testing
3. Commissioning
4. Operations
5. Modifications
6. Decommissioning
✔✔Breakdown maintenance - ✔✔Failure of equipment leading to repairing/replacing
, ✔✔Condition monitoring - ✔✔operator looks for indicators that equipment is not, or will
not be, working as intended
✔✔Planned preventative maintenance - ✔✔proactive inspections and checks before
failures occur to minimise risk of plant impact
✔✔Permit-to-work system - ✔✔scope of work, duration of work, identification of
hazards, isolations, links to other permits, emergency controls, specified controls, permit
acceptance and cancellation. Examples, hot work permit, cold work, electrical, confined
space.
✔✔LOTO - ✔✔Lock Out Tag Out
✔✔PHA - ✔✔Process Hazard Analysis - assesses the potential hazards associated with
an industrial process. Must be updated and re-evaluated every 5 years.
✔✔SOP - ✔✔Standard Operating Procedures: The step-by-step explanation/instruction
on how to conduct specific parts of the operating procedure.
✔✔SCE - ✔✔Safety Critical Element - Parts of installation, in which failure would cause
or contribute substantially to or purpose of which is to prevent or limit the effect of a
major accident.
✔✔PS - ✔✔Performance standard- agreed standard that is set against which actual
performance is measured and judged.
✔✔MOC - ✔✔Management of change - small changes can have large potential
consequences if they are not thought through properly beforehand. Exists to control
proposed changes are properly assessed and authorised.
✔✔FARSI - ✔✔functionality, availability, reliability, survivability, interdependency -
✔✔ROSOV - ✔✔Remotely operated shutoff valve
✔✔UPS - ✔✔Uninterruptible Power Supply - backup power supply
✔✔PFD - ✔✔Probability of failure on demand - probability of component failure to
perform safety function at the time needed.
✔✔MTBF - ✔✔Mean time between failures - A metric that provides a measure of a
system's reliability and is' usually represented in hours. The MTBF identifies the
average time between failures. '
QUESTIONS SET A+
✔✔FMEA - ✔✔Failure Mode and Effects Analysis, how components or systems fail, the
potential effects/consequences of those failures, existing safeguards against those
failure modes and whether more should be in place.
✔✔RPN - ✔✔Risk Priority Number - part of FMEA steps - gives you the ability to rank
causes (inputs)
✔✔ETA - ✔✔Event tree analysis, evaluate the mitigation measures that will operate
after an event and work forward in time to see what protective measures will operate
✔✔Double block and bleed - ✔✔The closure of a line, duct, or pipe by closing and
locking or tagging two in-line valves and by opening and locking or tagging a drain or
vent valve in the line between the two closed valves.
✔✔Asset - ✔✔An item of equipment, or an area of production plant
✔✔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.
✔✔ATEX - ✔✔Explosive in atmosphere
✔✔Asset Integrity through life cycle - ✔✔1. Design
2. Procurement, construction, installation and testing
3. Commissioning
4. Operations
5. Modifications
6. Decommissioning
✔✔Breakdown maintenance - ✔✔Failure of equipment leading to repairing/replacing
, ✔✔Condition monitoring - ✔✔operator looks for indicators that equipment is not, or will
not be, working as intended
✔✔Planned preventative maintenance - ✔✔proactive inspections and checks before
failures occur to minimise risk of plant impact
✔✔Permit-to-work system - ✔✔scope of work, duration of work, identification of
hazards, isolations, links to other permits, emergency controls, specified controls, permit
acceptance and cancellation. Examples, hot work permit, cold work, electrical, confined
space.
✔✔LOTO - ✔✔Lock Out Tag Out
✔✔PHA - ✔✔Process Hazard Analysis - assesses the potential hazards associated with
an industrial process. Must be updated and re-evaluated every 5 years.
✔✔SOP - ✔✔Standard Operating Procedures: The step-by-step explanation/instruction
on how to conduct specific parts of the operating procedure.
✔✔SCE - ✔✔Safety Critical Element - Parts of installation, in which failure would cause
or contribute substantially to or purpose of which is to prevent or limit the effect of a
major accident.
✔✔PS - ✔✔Performance standard- agreed standard that is set against which actual
performance is measured and judged.
✔✔MOC - ✔✔Management of change - small changes can have large potential
consequences if they are not thought through properly beforehand. Exists to control
proposed changes are properly assessed and authorised.
✔✔FARSI - ✔✔functionality, availability, reliability, survivability, interdependency -
✔✔ROSOV - ✔✔Remotely operated shutoff valve
✔✔UPS - ✔✔Uninterruptible Power Supply - backup power supply
✔✔PFD - ✔✔Probability of failure on demand - probability of component failure to
perform safety function at the time needed.
✔✔MTBF - ✔✔Mean time between failures - A metric that provides a measure of a
system's reliability and is' usually represented in hours. The MTBF identifies the
average time between failures. '
