Risk & Hazard Control Flashcards

Which risk assessment methodology uses a matrix to plot likelihood against consequence severity?

Answer: Risk probability-severity matrix

A risk probability-severity matrix plots the likelihood of an event against its potential severity to prioritize hazard controls.

The substitution method of hazard control involves:

Answer: Replacing a hazardous substance or process with a less hazardous one

Substitution replaces a hazardous material or process with a safer alternative, making it the second most effective control after elimination.

A residual risk is best defined as:

Answer: Risk remaining after all feasible controls have been implemented

Residual risk is the level of risk that remains after all practicable control measures have been put in place.

When conducting a Job Hazard Analysis (JHA), the first step is to:

Answer: Select the job to be analyzed

The first step in a JHA is selecting the job to be analyzed, typically prioritized by frequency of accidents, severity potential, or new tasks.

Which chemical hazard control measure is considered an engineering control?

Answer: Local exhaust ventilation (LEV)

Local exhaust ventilation is an engineering control that captures and removes airborne contaminants at the source before workers can be exposed.

The primary purpose of a process hazard analysis (PHA) in a chemical facility is to:

Answer: Identify, evaluate, and control hazards associated with hazardous chemical processes

A PHA systematically identifies and evaluates potential hazards in chemical processes to prevent releases, fires, explosions, and other incidents.

In the context of risk management, 'risk tolerance' refers to:

Answer: The level of risk an organization is willing to accept after controls are applied

Risk tolerance defines the threshold of residual risk that an organization deems acceptable given its values, resources, and regulatory requirements.