The BEST way to set an overall reliability goal is to:
Response:

• A.Insist that the goal be expressed in terms of mean-time-between-failures for all components and assemblies.
• B.Put down specific numerical requirements for reliability statements of operating environments, and a definition of successful product performance.
• C.Indicate who would be at fault if the desired reliability is not obtained during the warranty.
• D.Write a specification calling for a product to have high reliability and incorporate it into a contract.

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For the ANOVA Table below, what is the Fcal statistic?

Response:

• A.9.44
• B.5.64
• C.5.97
• D.1.58

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Which of the following is TRUE about the distribution of the mean for large samples?
Response:

• A.It is exponentially distribution.
• B.It is normally distributed.
• C.It is the same as the population distributions.
• D.It is lognormally distributed.

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If a component has a known constant failure rate of 0.0037 failures per hour ; the reliability of two of these components in a series alignment would be:
Response:

• A.99.63 percent.
• B.Insufficient information to solve problem.
• C.Less than 99 percent.
• D.Dependent on the wear out rate of a mating subsystem

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The hazard function is:
I. The probability of failure during a very small time interval, assuming a failure occurs before that time.
II. A function of constant failure rate only.
III. A function of increasing failure rate only.
IV. The ratio of the probability density function to the reliability function.
Response:

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

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