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what size drill bit should be used when installing a \\(\frac{1}{4}\\)-inch concrete screw?
\\(\circ\\) a. \\(\frac{5}{32}\\)\ bit
\\(\circ\\) b. \\(\frac{3}{16}\\)\ bit
\\(\circ\\) c. \\(\frac{1}{4}\\)\ bit
\\(\circ\\) d. \\(\frac{3}{4}\\)\ bit

Explanation:

Step1: Recall Drill Bit for Concrete Screw

For a \( \frac{1}{4} \)-inch concrete screw, the standard drill bit size is \( \frac{5}{32} \)-inch. This is a standard practice in construction/electrical (related to Engineering, a subfield of Natural Science) for installing concrete screws.

Step2: Match with Options

Option a is \( \frac{5}{32} \)-inch bit, which matches the required size. Options b (\( \frac{3}{16} = \frac{6}{32} \)), c (\( \frac{1}{4}=\frac{8}{32} \)), d (\( \frac{3}{4} \)) do not match the standard size for a \( \frac{1}{4} \)-inch concrete screw.

Answer:

a. \( \frac{5}{32} \)" bit