Section III - Terms

Question 1

absolute risk

Answer 1

an ideal and accurate description and quantification of risk

Question 2

acceptable risk

Answer 2

level of risk that is acceptable to the owner-user

Question 3

ALARP - as low as reasonably practical

Answer 3

reduce to a certain minimum under current technology and with reasonable cost

Question 4

consequence

Answer 4

outcome of an event

Question 5

damage mode

Answer 5

physical manifestation of damage (thinning, pitting)

Question 6

damage tolerance

Answer 6

amount of deterioration that a component can withstand without failing

Question 7

design premise

Answer 7

assumption made during the design

Question 8

event tree

Answer 8

analytical tool that organizes and characterizes potential occurrences in a logical and graphical manner

Question 9

external event

Answer 9

forces of natures, acts of god, beyond the direct or indirect control of persons employed

Question 10

failure mode

Answer 10

manner of failure –> example , small hole, crack, rupture

Question 11

failure

Answer 11

termination of the ability of a system, structure, or equipment

Question 12

FFS

Answer 12

methodology whereby damage or flaws/imperfections contained within a component or equipment item are assessed in order to determine acceptability for continued service

Question 13

HAZOP (hazard and operability study)

Answer 13

study is a form of failure modes and effects analysis (FMEA)

Question 14

ISO-rsik

Answer 14

line of constant risk and method of graphically showing PPOF and CF values in a 2 dimensional plot where risk increases toward the upper right hand corner.

Question 15

logic model

Answer 15

tool use to depict the effectiveness in depicting a combination of events that could result in a loss of containment event

Question 16

management systtem

Answer 16

framework of work processes and procedures

Question 17

physical model

Answer 17

tool use to depict the progression of events and the release of a hazardous material to the environment

Question 18

qualified person

Answer 18

competent person who has knowledge, skill and expectations of the owner-user

Question 19

qualitative risk analysis

Answer 19

risk analysis using primarily subject matter expertise and experience to assign broad categorization for POF and COF

Question 20

quantitative risk analysis

Answer 20

risk analysis using primarily model-based approaches where numerical values are calculated and more discreet input data used

Question 21

reassessment

Answer 21

process of integrating inspection data or other changes into the risk analysis

Question 22

relative risk

Answer 22

comparative risk to other facilities

Question 23

residual risk

Answer 23

risk remaining after risk mitigation

Question 24

risk

Answer 24

combination of probability of an event and its consequences.

Question 25

risk acceptance

Answer 25

a decision to accept a risk. risk acceptance depends on risk criteria

Question 26

risk analysis

Answer 26

systematic use of information to identify sources and to estimate the risk.

risk evaluation
risk mitigation
risk acceptance

credible DM and FM are part of risk analysis

Question 27

risk assessment

Answer 27

overall process of risk analysis and risk evaluation

Question 28

risk avoidance

Answer 28

Decision to not become involved in or action to withdraw from a risk situation

Question 29

RBI

Answer 29

A risk assessment and management process that is focused on loss of containment of pressurized equipment in processing facilities, due to material deterioration.

These risks are managed primarily through equipment inspection

Question 30

risk comunication

Answer 30

Exchange or sharing of information about risk between the decision maker and other stakeholders.

Question 31

risk criteria

Answer 31

Terms of reference by which the significance of risk is assessed.

Risk criteria may include associated cost and
benefits, legal and statutory requirements

Question 32

risk driver

Answer 32

An item affecting either the probability, consequence, or both such that it constitutes a significant portion of the risk.

Question 33

risk estimation

Answer 33

Process used to assign values to the probability and consequence of a risk.

Risk estimation may consider cost,
benefits, stakeholder concerns, and other variables, as appropriate for risk evaluation.

Question 34

risk evaluation

Answer 34

Process used to compare the estimated risk against given risk criteria to determine the significance of the risk.

Risk
evaluation may be used to assist in the acceptance or mitigation decision

Question 35

risk identification

Answer 35

Process to find, list, and characterize elements of risk.

Elements may include source, event, consequence, and probability. Risk identification may also identify stakeholder concerns

Question 36

risk management

Answer 36

Coordinated activities to direct and control an organization with regard to risk.

Risk management typically includes
risk assessment, risk mitigation, risk acceptance, and risk communication.

Question 37

risk mitigation

Answer 37

Process of selection and implementation of measures to modify risk.

Question 38

risk reduction

Answer 38

Actions taken to lessen the probability, negative consequences, or both associated with a particular risk.

Question 39

service life

Answer 39

The expected lifetime or the acceptable period during which a pressure-containing asset and/or component can
safely and reliably perform within its intended operating envelope.

Question 40

source

Answer 40

Thing or activity with a potential for consequence.

Source in a safety context is a hazard.

Question 41

unmitigated risk

Answer 41

The risk prior to mitigation activities.