Risk Analysis & Hazard Identification Flashcards

Fault Tree Analysis (FTA) is a technique that works:

Answer: Top-down, starting from an undesired event to identify root causes

FTA begins with a defined top-level undesired event and works downward through logic gates to identify contributing causes.

Which OSHA process safety management (PSM) element requires employers to identify and analyze hazards of highly hazardous chemicals?

Answer: Process Hazard Analysis (PHA)

Process Hazard Analysis is the PSM element specifically requiring systematic identification and evaluation of chemical process hazards.

The purpose of a bow-tie diagram in risk analysis is to:

Answer: Visually link threat causes through a critical event to consequences and controls on both sides

A bow-tie diagram shows threats and prevention barriers on the left and consequences and mitigation barriers on the right of a central hazardous event.

In risk management, 'residual risk' refers to:

Answer: The risk that remains after controls have been implemented

Residual risk is the remaining level of risk after all feasible controls have been applied to reduce the initial inherent risk.

An IHSA certified coach conducting a risk assessment should document findings in order to:

Answer: Provide a record for tracking corrective actions and demonstrating due diligence

Documentation creates an audit trail for corrective actions, supports continuous improvement, and demonstrates legal due diligence.

Ergonomic hazards in infrastructure worksites are BEST controlled during which phase?

Answer: Design and planning phase

Addressing ergonomic hazards during the design phase is most cost-effective and eliminates hazards before work patterns are established.

Which scenario best illustrates a 'dynamic risk assessment'?

Answer: A worker re-evaluating hazards on the spot when site conditions change unexpectedly

Dynamic risk assessment is an on-the-spot evaluation performed in real time when conditions deviate from what was anticipated.