CESCO Process Safety Management (PSM) 3

Question 1

Under OSHA PSM, employers must certify that operating procedures are current and accurate. How often must this certification occur?

Accepted Answer

Annually

Answer

29 CFR 1910.119(f)(3) requires employers to annually certify that they have evaluated operating procedures and that the procedures are current and accurate.

Question 2

A 'near miss' under PSM incident investigation requirements is best described as:

Accepted Answer

An unplanned event that did not result in injury or release but had the potential to do so

Answer

PSM requires investigation of near misses — incidents that could reasonably have resulted in a catastrophic release — because they reveal system failures before a catastrophic event occurs.

Question 3

The PSM standard requires employers using contractors who perform maintenance or repair work on or near covered processes to evaluate contractor safety programs. This is part of which PSM element?

Accepted Answer

Contractors

Answer

The Contractors element of PSM requires host employers to evaluate contractor safety performance, inform contractors of known hazards, and control contractor access to the process.

Question 4

Bow-tie analysis in process safety management connects:

Accepted Answer

Threat/cause pathways through a central hazardous event to consequences, with barriers on both sides

Answer

Bow-tie analysis graphically depicts threats leading to a central hazardous event (the knot) and consequences on the right, with barriers (controls) shown on both the prevention and mitigation sides.

Question 5

Which of the following BEST describes a 'layer of protection' in process safety terminology (LOPA)?

Accepted Answer

An independent safeguard that can prevent a hazardous scenario from progressing to a consequence

Answer

In Layer of Protection Analysis (LOPA), each layer is an independent protection layer (IPL) that prevents a hazard from escalating, such as a relief valve, interlock, or procedural safeguard.

CESCO - Certified Environmental, Safety and Compliance Officer Practice Test

CESCO - Certified Environmental, Safety and Compliance Officer Practice Test

CESCO Process Safety Management (PSM) 3