CHMM CHMM Risk Assessment and Hazard Analysis 2

Question 1

In Fault Tree Analysis (FTA), what does a 'top event' represent?

Accepted Answer

The undesired event whose causes are being analyzed

Answer

The top event in an FTA is the undesired outcome (such as a toxic release) from which the analyst works downward to identify contributing causes.

Question 2

OSHA's Process Safety Management (PSM) standard (29 CFR 1910.119) applies to processes containing threshold quantities of which types of substances?

Accepted Answer

Highly hazardous chemicals including flammables and toxics

Answer

PSM applies to processes with threshold quantities of highly hazardous chemicals—substances with toxic, flammable, reactive, or explosive properties—listed in Appendix A.

Question 3

Which consequence modeling tool is commonly used to estimate the dispersion of a toxic gas release in the atmosphere?

Accepted Answer

CAMEO/ALOHA

Answer

ALOHA (Areal Locations of Hazardous Atmospheres), part of the CAMEO suite, models toxic and flammable gas dispersion to help responders and planners estimate hazard zones.

Question 4

In the context of chemical risk assessment, 'dose-response assessment' establishes what relationship?

Accepted Answer

The relationship between the amount of chemical exposure and the likelihood or severity of health effects

Answer

Dose-response assessment defines how increasing doses of a chemical lead to increasing probability or severity of adverse health effects in exposed populations.

Question 5

A 'bowtie' risk analysis diagram combines which two analytical methods?

Accepted Answer

Fault Tree Analysis (left side) and Event Tree Analysis (right side)

Answer

The bowtie model places the hazardous event at its center, with FTA mapping causes on the left and ETA mapping consequences/barriers on the right.

CHMM - Certified Hazardous Materials Manager Practice Test

CHMM - Certified Hazardous Materials Manager Practice Test

CHMM CHMM Risk Assessment and Hazard Analysis 2