A reliability test of 12 pumps is terminated at 1000 hours. There were 5 failures as follows, what is the median rank % for the 4th failure ?

Response:

• A.29.84%
• B.25.62%
• C.24.48%
• D.40.00%

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What is the MOST accurate method to verify that the maintainability requirement of a design is being met?
Response:

• A.By demonstration at the customer's facility.
• B.By performing maintainability prediction.
• C.By analysis of the design.
• D.By thorough design reviews.

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In order to attain a high order of series reliability:
Response:

• A.The number of parts must be increased.
• B.The number of parts must be kept to a minimum.
• C.The number of parts is insignificant if each part has a reliability of 99 percent of more.
• D.The number of parts must have a low failure variance.

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The success of the FMEA is principally dependent on:
I. Good communication between the reliability engineer and the designer.
II. Use of the correct form and definitions.
III. Early determination of the reliability critical items.
Response:

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

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The first phase in the operation life history of a population of product units is typically called:
Response:

• A.Transition phase.
• B.Wear out phase.
• C.Debugging phase.
• D.Chance failure phase.

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