What is the correct approach to sampling stockpiles with no power equipment?

• A. Sample only the uppermost layer of the pile
• B. Randomly take samples from around the edges
• C. Divide the pile into four equal sections
• D. Only sample from the bottom of the pile

Answer: (C)

Dividing the pile into four equal sections is the most effective approach for sampling stockpiles without power equipment. This method ensures that the samples are representative of the entire pile rather than being skewed by the characteristics of only a small area. By creating four sections, one can systematically take samples from each area, reducing the chance of obtaining a biased result that might occur if only sampled from one part of the pile. This comprehensive approach enhances the reliability of the analysis and provides a better understanding of the material's variability throughout the stockpile.

Sampling only the uppermost layer can miss significant variations that might be present deeper in the pile, leading to unrepresentative results. Randomly sampling from the edges may also introduce bias, as the material at the edges can differ from that buried deeper in the pile. Only sampling from the bottom misses the opportunity to capture the characteristics of the entire stockpile, focusing solely on one portion that may not reflect the overall composition.