A data collection, analysis, and reporting system should:
I. Permit detailed failure and failure rate analysis for varying environments, time periods, storage conditions, etc.
II. Provide distinction between items that failed and item that were wrongly removed.
III. Report data on successes as well as failures.
Response:

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

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The rated breaking strength of a suspension bridge cable is 150,000 pounds. An example using this cable in a derated condition is which of the following?
Response:

• A.The cable in a 150,000 pound maximum stress application
• B.The cable in a 75,000 pound maximum stress application
• C.The cable as a parallel component.
• D.The cable in a 225,000 pound maximum stress application

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In the binomial expression:
Response:

• A.The sum of the exponents of all the terms after expansion is equal to the sample size.
• B.The sum of the coefficients of each term after expansion is equal to the sample size.
• C.The sum of the exponents after expansion has no relation to the sample size.
• D.The sum of the exponents of each term after expansion is equal to the sample size.

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A go/no-go device is tested until it fails. If X is the number of tests to first failure with no wear out present, and the probability of success on each test is .99, then the probability that X is greater than 5 is:
Response:

• A.0.9510
• B.0.9610
• C.0.9310
• D.0.9410

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50 resisters from a lot of 75,000 were tested. The average was 3,306 ohms with a variance of 21,609 ohm 2 . From this information, we may conclude with 99% confidence, that at least 95% of this lot will have resistance values in the range of Response:

• A.2,846 - 3,766 ohms
• B.2,865 - 3,747 ohms
• C.3,012 - 3,600 ohms
• D.2927 - 3,685 ohms

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