What type of tool is used when sampling a collection of coarse particles / solids?

What type of tool is used when sampling a collection of coarse particles / solids?

• A. Sieve
• B. Spoon
• C. Spatula
• D. Brush

Answer: (B)

Separating solids by size is handled with a sieve. A sieve uses a mesh with a defined opening size, so when you pass the coarse material over it, particles larger than the openings are retained and the smaller ones fall through. This lets you isolate and analyze the coarse fraction, determine particle size distribution, and assess gradation or contamination by fines. The other tools—spoon, spatula, and brush—are mainly for picking up, transferring, or cleaning samples, not for sorting by particle size.

Separating solids by size is handled with a sieve. A sieve uses a mesh with a defined opening size, so when you pass the coarse material over it, particles larger than the openings are retained and the smaller ones fall through. This lets you isolate and analyze the coarse fraction, determine particle size distribution, and assess gradation or contamination by fines. The other tools—spoon, spatula, and brush—are mainly for picking up, transferring, or cleaning samples, not for sorting by particle size.