CRE 試験問題を無料オンラインアクセス

Basic sources of reliability data are:
I. In-plant testing.
II. Field testing.
III. Operation by user.
Response:

• A.I and II only
• B.I, II, and III
• C.I and III only
• D.II and III only

Which of the following is NOT true about the Taguchi DOE approach?
I. It includes the concept of loss function in factorial experiments.
II. It assumes losses occur when a process fails to meet a target value.
III. It assumes losses are due to variability within the process.
IV. It assumes that the loss function is a step function relative to the specification limits.
Response:

• A.IV only
• B.II only
• C.III only
• D.I only

When performing trade-offs in evaluating parts for reliability, which of the following is LEAST important?
Response:

• A.Process and materials compatibility.
• B.Initial parts costs.
• C.Search of data part history to established reliability potential.
• D.Technical comparison of new part with standard part type.

According to Taguchi, robustly designed experiments should employ all of the following techniques EXCEPT Response:

• A.Signal-to-noise ratios.
• B.Inner and outer arrays
• C.Linear graphs.
• D.Fold-over capabilities.

In which of the following distribution is the standard deviation equal to the mean?
Response:

• A.Exponential.
• B.Binomial.
• C.Poisson.
• D.Negative binomial.