ISA CAP Industry Regulations & Compliance 4

Question 1

Under IEC 62061 (functional safety for machinery), a Safety Instrumented System that is continuously demanded would be characterized as operating in:

Accepted Answer

High demand or continuous mode

Answer

IEC 62061 and IEC 61508 define high demand or continuous mode as when demands on a safety function occur more frequently than once per year or continuously.

Question 2

The EPA's Accidental Release Prevention program (40 CFR Part 68) classifies regulated substances into Program 1, 2, or 3 based on:

Accepted Answer

Proximity to public receptors and accident history

Answer

EPA RMP Program levels are determined by the facility's accident history, proximity to public receptors, and whether the process is subject to OSHA PSM or other regulatory requirements.

Question 3

In the ISA-62443 industrial cybersecurity framework, a 'Conduit' is defined as:

Accepted Answer

A logical grouping of communication channels sharing security requirements

Answer

ISA-62443 defines a conduit as a logical grouping of communication channels (links) that share common security properties between zones.

Question 4

Which standard provides guidance on cybersecurity for industrial automation and control systems and is published as a series by ISA and adopted by IEC?

Accepted Answer

ISA-62443

Answer

ISA-62443 (originally developed as ISA-99) is the comprehensive series of standards for industrial automation and control system cybersecurity, also adopted as IEC 62443.

Question 5

When a Safety Instrumented System undergoes a major modification, IEC 61511 requires the modification to be managed through:

Accepted Answer

The full safety lifecycle or relevant portions thereof

Answer

IEC 61511 requires that modifications to SIS be managed through the full safety lifecycle or the relevant portions, ensuring all impacts are assessed and documented.

(ISA CAP) ISA Certified Automation Professional Practice Test

(ISA CAP) ISA Certified Automation Professional Practice Test

ISA CAP Industry Regulations & Compliance 4