Risk Assessment & Hazard Identification Flashcards

Which risk assessment methodology uses a numerical matrix to combine the likelihood of an event with its potential severity?

Answer: Risk matrix scoring

A risk matrix scoring system assigns numerical values to likelihood and severity, then multiplies or combines them to produce a risk score.

A 'near-miss' incident is BEST described as:

Answer: An unplanned event that did not result in harm but had the potential to do so

A near-miss is an unplanned event with no injury or damage that, under slightly different circumstances, could have caused harm.

Which of the following is an example of an administrative control for hazard mitigation?

Answer: Rotating workers to limit exposure time

Administrative controls include work practice changes such as job rotation, shift limits, and written procedures rather than physical modifications.

In a Job Hazard Analysis (JHA), what is the FIRST step?

Answer: Determine the job to be analyzed

The first step in a JHA is selecting and describing the specific job or task to be analyzed before breaking it into steps.

Residual risk is defined as the risk that remains AFTER:

Answer: Controls have been implemented

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

Which term describes the probability that a specific hazardous event will occur within a given time period?

Answer: Likelihood

Likelihood (or probability) refers to the chance that a hazardous event will occur during a defined timeframe.

What is the primary purpose of a Pre-Task Risk Assessment (PTRA)?

Answer: To identify and control hazards immediately before starting a specific task

A Pre-Task Risk Assessment is conducted just before work begins to identify hazards specific to that day's conditions and task.