What test would your perform to determine whether plastic will require an adhesion promoter?

What will be an ideal response?


Lightly sand a hidden spot on the piece using a high-speed grinder and #36 grit sandpaper. If the material gives off dust, it can be repaired with a standard structural adhesive system. If the material melts and smears or has a greasy or waxy look, then you must use an adhesion promoter.

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? Identify and state the historical significance of Harriet Beecher Stowe.

What will be an ideal response?

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Air purifying respirators can only be used when the ambient atmosphere contains a minimum of ________ percent oxygen.

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

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The magnetic field can be induced in a pipe by passing a high-amperage, low-voltage current through it using a set of _____.? ?  

A. magnets? B. electrodes? C. probes? D. penetrants?

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The ____ valve provides a bypass around the condenser.

a. metering b. ORI c. master d. ORD

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