When soldering, why should flux be used?
A. It helps prevent oxidation.
B. It helps keep pipes clean.
C. It helps solder flow easier.
D. All of the above are correct.
Answer: D
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A. oxalic acid crystals and water B. hydrochloric acid C. hydrogen peroxide D. paraffin oil and Varosol
The ________ establishes emotional states.
A) basal nuclei B) limbic system C) cerebellum D) midbrain E) pons
Which two powers were the most concerned about Russia’s increased interest in eastern and southeastern Europe before 1914?
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A) current, impedance B) voltage, impedance C) current, voltage D) impedance, current