The hollow-stem auger cutter head should be what size in relation to the hollow-stem augers to drill and convey cuttings effectively...

• A. Smaller than
• B. The same size as
• C. Larger than
• D. Half the size

Answer: (B)

In hollow-stem augering, you need a clear, continuous path for cuttings to be carried to the surface. The cutter head should be the same size as the hollow stem because that match allows loosened material to flow directly into the hollow interior and be lifted up the stem by the air or fluid inside. If the cutter head is smaller, cuttings can accumulate around the head or bridge at the transition, hampering conveyance. If it’s larger, it won’t fit properly and can cause binding or leaks, also hindering the upward transport. Keeping the cutter head the same size as the hollow stem ensures efficient cutting and reliable removal of cuttings.