CRL CRL - Certified Reliability Leader Risk Management and Criticality Analysis Questions and Answers 2

Question 1

Which tool is most commonly used to map the logical relationships between failure events leading to a top-level undesired event?

Accepted Answer

Fault Tree Analysis (FTA)

Answer

Fault Tree Analysis (FTA) uses a top-down logic diagram to map combinations of events and conditions that can cause a specified top-level failure.

Question 2

The P-F interval in condition-based maintenance represents:

Accepted Answer

The time between the point of potential failure detection and functional failure

Answer

The P-F interval is the time window between when a potential failure can be detected (P) and when functional failure (F) occurs, defining the inspection frequency needed.

Question 3

Run-to-failure (RTF) is an appropriate maintenance strategy when:

Accepted Answer

Failure consequences are low and repair costs are less than prevention costs

Answer

RTF is justified only when failure has no safety or significant production consequences and the cost of prevention exceeds the cost of failure.

Question 4

A bow-tie analysis in risk management combines which two tools?

Accepted Answer

Fault Tree Analysis (FTA) and Event Tree Analysis (ETA)

Answer

Bow-tie analysis integrates FTA (left side, causes) with ETA (right side, consequences) centered on the critical hazard event.

Question 5

Which risk mitigation strategy involves adding backup equipment to reduce the impact of a failure?

Accepted Answer

Redundancy

Answer

Redundancy provides a backup system or component that takes over if the primary fails, reducing the operational consequence of the failure.

CRL - Certified Reliability Leader Practice Test

CRL - Certified Reliability Leader Practice Test

CRL CRL - Certified Reliability Leader Risk Management and Criticality Analysis Questions and Answers 2