Determine the coefficient of variation for the last 500 pilot plant test runs of high temperature film having a mean of 900 Kelvin with a standard deviation of 54.

• A.6%
• B.16.7%
• C.60%
• D.31%

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Which of the following nondestructive testing methods can be used to evaluate sub-surface discontinuities in aluminum bar stock?
. Microwave.
. Magnetic particle.
. Pulse echo.
. Eddy current.

• A.I andIIIonly
• B.I,IIandIVonly
• C.IIIandIVonly
• D.I andIVonly

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Which of the following nondestructive testing methods can be used to evaluate sub-surface discontinuities in aluminum bar stock?
I. Microwave.
II. Magnetic particle.
III. Pulse echo.
IV. Eddy current.

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

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When trying to find all possible causes of a problem, which of the following tools would be useful?
I. Systematic troubleshooting and brainstorming.
II. Fishbone diagrams and histograms.
III. Checklists and scatter diagrams.
IV. Control charts and graphs.

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

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The steeper the OC-curve, the

• A.The lower the AQL.
• B.Less protection for both producer and consumer.
• C.More protection for both producer and consumer.
• D.The smaller the sample size.

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