CHMM CHMM Risk Assessment and Hazard Analysis 1

Question 1

In quantitative risk assessment, risk is defined as the combination of which two factors?

Accepted Answer

Probability and consequence (severity)

Answer

Risk is calculated as the product of the probability (likelihood) of an adverse event and the consequence (severity) of that event.

Question 2

Which hazard analysis technique uses a systematic, inductive approach with a structured worksheet to identify deviations from design intent using guide words like 'more,' 'less,' and 'no'?

Accepted Answer

HAZOP Study

Answer

HAZOP (Hazard and Operability Study) uses guide words applied to process parameters to systematically identify potential deviations and their consequences.

Question 3

A Preliminary Hazard Analysis (PHA) is typically conducted at which stage of a project?

Accepted Answer

Early in the conceptual or design phase

Answer

PHA is an early-stage analysis performed during conceptual design to identify hazards before detailed design decisions are locked in.

Question 4

In an environmental health risk assessment, what is the step that determines how much of a chemical people are actually exposed to?

Accepted Answer

Exposure assessment

Answer

Exposure assessment quantifies the magnitude, frequency, and duration of human contact with a hazardous substance through all relevant pathways.

Question 5

Which term describes the concentration of a chemical in air at which 50% of a test animal population dies within a specified time period?

Accepted Answer

LC50

Answer

LC50 (Lethal Concentration 50) is the airborne concentration of a substance lethal to 50% of a test population, used to compare acute inhalation toxicity.

CHMM - Certified Hazardous Materials Manager Practice Test

CHMM - Certified Hazardous Materials Manager Practice Test

CHMM CHMM Risk Assessment and Hazard Analysis 1