Safety & Risk Management Flashcards
7 cards from real API 510 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Safety & Risk Management flashcards as text
Under OSHA's Process Safety Management (PSM) standard 29 CFR 1910.119, pressure vessels containing highly hazardous chemicals above threshold quantities are subject to:
Answer: Mechanical integrity requirements including inspection and testing
PSM's Mechanical Integrity element (paragraph (j)) requires inspection, testing, and quality assurance procedures for pressure vessels containing covered chemicals.
A Safety Instrumented System (SIS) designed to prevent overpressure in a vessel is classified by its Safety Integrity Level (SIL). SIL ratings are defined in which standard?
Answer: IEC 61511
IEC 61511 (Process Sector) defines SIL requirements for safety instrumented systems used in the process industries.
In a Layer of Protection Analysis (LOPA), an Independent Protection Layer (IPL) must be:
Answer: Independent, auditable, and capable of preventing the consequence on its own
An IPL must be independent of the initiating cause, auditable (testable), and capable of preventing the hazardous consequence by itself.
During a Process Hazard Analysis (PHA), the 'consequence' of a hazardous scenario is evaluated BEFORE applying safeguards to determine the:
Answer: Unmitigated risk level
Unmitigated consequence (without safeguards) is evaluated first to understand the inherent hazard before safeguard credit is applied.
An API 510 inspector identifies that a pressure relief valve (PRV) has not been tested within the required interval. The correct action is to:
Answer: Notify the owner/user and recommend immediate testing or removal from service until tested
An overdue PRV is a safety deficiency; the inspector must notify the owner/user who must either test the device or remove the vessel from service pending testing.
In the context of API 510 safety management, 'fitness-for-service' (FFS) assessment is performed when:
Answer: Equipment contains a flaw or damage that may not meet original construction code requirements
FFS per API 579-1/ASME FFS-1 is applied when flaws or degradation are found that may not meet original code standards but may still be acceptable for continued safe operation.
Which Management of Change (MOC) trigger would require re-evaluation of a pressure vessel's inspection plan under API 510?
Answer: A change in process fluid that introduces a new corrosion mechanism
A new corrosion mechanism from a fluid change is a process change requiring MOC review, potentially altering corrosion rates and inspection intervals.