CAS Automation Specialist Safety & Standards Flashcards
6 cards from real CAS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CAS Automation Specialist Safety & Standards flashcards as text
Which IEC standard defines functional safety requirements for electrical/electronic/programmable electronic safety-related systems?
Answer: IEC 61508
IEC 61508 is the foundational international standard for functional safety of E/E/PE safety-related systems.
What does SIL stand for in the context of industrial automation safety?
Answer: Safety Integrity Level
SIL (Safety Integrity Level) is a measure of risk reduction provided by a safety function, defined in IEC 61508.
Which OSHA regulation applies most directly to lockout/tagout procedures for energy control in automated machinery?
Answer: 29 CFR 1910.147
29 CFR 1910.147 governs the control of hazardous energy (lockout/tagout) for general industry.
In a Safety Instrumented System (SIS), what is the purpose of the final element?
Answer: To take action to bring the process to a safe state
The final element (e.g., a valve or motor contactor) executes the corrective action prescribed by the safety logic.
What is the primary purpose of a Safety Integrity Level (SIL) verification study?
Answer: To confirm that a safety function meets its required risk reduction
SIL verification confirms that the designed safety function achieves the required probability of failure on demand (PFD) target.
Which document defines the process hazard analysis (PHA) lifecycle stage in the ISA 84 / IEC 61511 standard for process industry SIS?
Answer: The Safety Requirements Specification (SRS)
The Safety Requirements Specification (SRS) documents what a Safety Instrumented Function must achieve, derived from the PHA results.