Which types of fluxes should not be used on a circuit board?

What will be an ideal response?


Acid- or zinc-based fluxes should not be used on a circuit board. Fully activated rosin flux, known as RA, also is not recommended for use on a circuit board.

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If outrigger safety legs are provided on a ladder, they are used _____.

a. on uneven or unstable surfaces b. when climbing above 6 feet c. on wet or slippery surfaces d. whenever the ladder is used

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A repair shop has an assessed value of $520,000. The property tax rate in this community is a millage of 29.45 for 40% of the assessed value. How much property tax will the owner of this shop have to pay?

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

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If a counter-mounted cooktop unit has a nameplate rating of 7300 watts at 240 volts, the current draw will be __________ amperes.

a. 30.41 b. 41.65 c. 60.83 d. 72.6

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A corner-clinching tool centers the bead and clinches it to the corner when struck with a _____

a. plastic hammer b. rubber mallet c. sledgehammer d. closed hand

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