CMRT Equipment Reliability 3

Question 1

In a Failure Mode and Effects Analysis (FMEA), the Risk Priority Number (RPN) is calculated by multiplying which three factors?

Accepted Answer

Severity, Occurrence, Detection

Answer

Frequency, Impact, Cost

Answer

Probability, Consequence, Exposure

Answer

Likelihood, Severity, Mitigation

Question 2

Which root cause analysis technique uses a diagram resembling a fish skeleton to organize potential causes of a failure?

Accepted Answer

Ishikawa diagram

Answer

Fault Tree Analysis

Answer

Pareto chart

Answer

5-Why analysis

Question 3

A bearing fails prematurely showing spalling on one race. What failure mechanism is most likely responsible?

Accepted Answer

Fatigue

Answer

Adhesive wear

Answer

Corrosion

Answer

Erosion

Question 4

Which failure analysis method uses Boolean logic to evaluate combinations of component failures that lead to a top-level system failure?

Accepted Answer

Fault Tree Analysis

Answer

FMEA

Answer

RCM

Answer

Weibull analysis

Question 5

When performing a '5-Why' analysis on a gearbox failure, the primary purpose is to:

Accepted Answer

Identify the physical, human, and latent root causes

Answer

Quantify the financial impact of the failure

Answer

Rank all failure modes by severity

Answer

Determine the statistical failure distribution

Question 6

A shaft seal fails due to excessive radial load causing misalignment. According to RCA classification, this is best categorized as which type of root cause?

Accepted Answer

Physical root cause

Answer

Latent root cause

Answer

Human root cause

Answer

Systemic root cause

Question 7

Which FMEA type is performed during the design phase to identify potential failure modes before equipment is manufactured?

Accepted Answer

Design FMEA

Answer

Process FMEA

Answer

System FMEA

Answer

Functional FMEA