All materials are elastic to some extent. It is desirable that a part compresses when a load is applied to assist in making an airtight seal (e.g., a jar lid). The results in the following table are from a test conducted at the Smith Test Labs in Seattle on a material known as Zecon 5.


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What are used to document daily equipment and process operations?

A. Log sheets B. Training manuals C. Standard operating procedures D. Equipment user manuals

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____________________ are a smooth, round, and dust-free dry fertilizer; have superior flowing and

spreading qualities; are free of fines; are easy to use; and are coated to prevent caking during storage.

Fill in the blank(s) with the appropriate word(s).

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The longer the ____, the greater the ____ to the welding current.

A. electrode extension, distance B. arc, distance C. distance, arc D. electrode extension, resistance

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For some measuring processes, the uncertainty is approximately proportional to the value of the measurement. For example, a certain scale is said to have an uncertainty of ±2%. An object is weighed on this scale.

a. Given that the reading is 100 g, express the uncertainty in this measurement in grams. b. Given that the reading is 50 g, express the uncertainty in this measurement in grams.

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