If you are using a wire brush on aluminum, you should use _____.
a. an aluminum brush
b. any stainless steel brush
c. a stainless steel brush that has been used on aluminum
d. a mild steel brush that has been used on aluminum
c. a stainless steel brush that has been used on aluminum
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The ________ vigor test subjects seeds to elevated seed moisture and high temperature for 2 to 5 days prior to the standard germination test.
Fill in the blank(s) with the appropriate word(s).
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. What is F?
A. 1/16 B. 1/8 C. 1/4 D. 1
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If lighting units and other appliances are also supplied, the rating of cord- and plug-connected room air conditioners must not exceed what percentage of the branch circuit rating?
a. 50% b. 70% c. 80% d. 90%
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Uncoated steel nails are called ____ nails.
a.hardened c.bright b.rough d.dull
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