NCCER Instrument Technician Practice Test 2025 – Your All-in-One Guide to Exam Success!

Question: 1 / 400

What type of liquid is used for degreasing electronic equipment?

Acid Solvents

Basic Solvents

Isopropyl alcohol

Isopropyl alcohol is widely recognized as an effective cleaning agent for degreasing electronic equipment. This choice is favored because of its non-conductive properties, which means it can safely clean circuit boards and other sensitive electronic components without risking electrical shorts. Additionally, isopropyl alcohol evaporates quickly, minimizing the risk of moisture damage to electronic parts.

Its ability to dissolve oils, flux residues, and dust makes it an ideal solvent for this specific application. It also has a low toxicity level compared to some other solvents, making it safer for both the technician and the equipment being serviced. In contrast, the other choices, such as acid and basic solvents, can corrode or damage electronic materials, while water can leave residual moisture that could lead to corrosion or short circuits.

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Water

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