CRE Safety Regulations and Compliance 3

Question 1

Which of the following best describes the purpose of a Management of Change (MOC) procedure in a PSM program?

Accepted Answer

To ensure safety and hazard reviews are conducted before changes to processes, equipment, or procedures

Answer

MOC procedures ensure that any change to process chemistry, technology, equipment, or procedures is reviewed for safety implications before implementation.

Question 2

Under MIL-STD-882E, a mishap probability category of 'Occasional' is defined as likely to occur:

Accepted Answer

Several times during the life of an item

Answer

MIL-STD-882E defines 'Occasional' (Category C) as likely to occur several times during the life of the system.

Question 3

A Hazard and Operability Study (HAZOP) uses 'guide words' to systematically identify deviations. Which of the following is a standard HAZOP guide word?

Accepted Answer

MORE OF

Answer

Standard HAZOP guide words include MORE OF, LESS OF, NO/NONE, REVERSE, OTHER THAN, AS WELL AS, and PART OF to identify deviations from design intent.

Question 4

The OSHA Lockout/Tagout standard (29 CFR 1910.147) requires that energy control procedures be reviewed at minimum:

Accepted Answer

Annually by an authorized employee and a trained observer

Answer

1910.147 requires at least annual inspection of each energy control procedure by an authorized employee, performed in the presence of each authorized employee for that equipment.

Question 5

In functional safety per IEC 61511, what is a 'safety instrumented system' (SIS)?

Accepted Answer

An instrumented system used to bring a process to a safe state when predetermined conditions are violated

Answer

A SIS is an instrumented system—including sensors, logic solvers, and final elements—designed to take a process to a safe state upon detection of a hazardous condition.

(CRE) Certified Reliability Engineer Practice Test

(CRE) Certified Reliability Engineer Practice Test

CRE Safety Regulations and Compliance 3