The purpose of sampling is to obtain material that shows the nature and conditions of the materials being represented.

• A. True
• B. False
• C. Not specified
• D. Sometimes

Answer: (A)

The main idea here is that sampling is done to capture a material’s real characteristics and the state it’s in, so the tests and analyses reflect what’s actually being used. In asphalt practice, a representative sample should mirror the batch or lot, including its composition, gradation, binder content, moisture, temperature, and other conditions that can affect performance. By obtaining such a sample, you can reliably assess whether the material meets specifications and understand variability within the lot. That’s why this statement is true: the purpose of sampling is to obtain material that shows the nature and conditions of the materials being represented. The other options don’t fit because sampling is not something vague or conditional; it’s deliberate and intended to reflect the actual material and its state, not only sometimes or never specified.