PSI Texas State Board Nail Tech practice exam

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Which abrasive file would you use to shape a weak natural nail?

180 grits
240 grits
150 grits
100 grits

The correct answer is: 240 grits

Using an abrasive file with 240 grits is ideal for shaping a weak natural nail because it is fine enough to avoid causing damage while still being effective for creating a smooth finish. Nails that are weak can be more susceptible to splitting or tearing, and a finer grit helps to minimize these risks by providing a gentler filing experience. The 240 grit allows for precision in shaping without the harshness that accompanies coarser grits, making it suitable for maintaining the integrity of the natural nail during the filing process. In contrast, coarser grits such as 100 or 150 might be too aggressive and could easily compromise the strength of a weak nail, leading to potential breakage. A 180 grit, while finer than 150 or 100, is still not as gentle as 240 grits, making it less ideal for delicate nail types. Thus, using a 240 grit file is the safest and most effective choice for shaping weak natural nails.