ACI Aggregate Base Testing Technician Practice Test 2025 - Free Practice Questions and Study Guide

Question: 1 / 400

For specific gravity testing using a stoppered bottle, the minimum material required is?

10 g

The correct answer reflects the minimum quantity of material required for specific gravity testing when using a stoppered bottle. In this method, a sample size of at least 10 grams is necessary to ensure accurate measurement and reliable results. This amount allows for proper submersion in the liquid used during the test, helping to yield an accurate determination of specific gravity.

Using too little material can lead to measurement errors, as insufficient mass can be affected disproportionately by buoyancy and other variables. It is important to maintain a consistent sample size that is large enough to minimize deviations in the readings influenced by these factors. Therefore, the specified minimum of 10 grams is established based on standard practices in material testing, allowing technicians to perform the test effectively and obtain meaningful data.

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5 g

15 g

25 g

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