Which device is designed to collect samples by driving a hollow tube into the soil?

Which device is designed to collect samples by driving a hollow tube into the soil?

• A. Push tubes
• B. Tube samplers
• C. Augers
• D. Trier sampler

Answer: (B)

The main idea here is collecting an intact soil core by advancing a hollow sleeve into the ground. A tube sampler is built for this purpose: it’s a hollow cylinder that is driven into the soil so a column of soil can be captured inside the tube. Because the tube defines a known volume, you get a representative, undisturbed core that can be transported and analyzed later, with the soil’s layers preserved as much as possible. This method contrasts with other tools. An auger cuts and removes soil by rotating, which tends to disturb the soil structure and yields a looser sample rather than an undisturbed core. The Trier sampler and similar devices use different sampling approaches and don’t rely on driving a hollow tube to obtain a preserved core in the same way. Push tubes are hollow tubes too, but the design most clearly aimed at driving a hollow tube to collect a core is the tube sampler.

The main idea here is collecting an intact soil core by advancing a hollow sleeve into the ground. A tube sampler is built for this purpose: it’s a hollow cylinder that is driven into the soil so a column of soil can be captured inside the tube. Because the tube defines a known volume, you get a representative, undisturbed core that can be transported and analyzed later, with the soil’s layers preserved as much as possible.

This method contrasts with other tools. An auger cuts and removes soil by rotating, which tends to disturb the soil structure and yields a looser sample rather than an undisturbed core. The Trier sampler and similar devices use different sampling approaches and don’t rely on driving a hollow tube to obtain a preserved core in the same way. Push tubes are hollow tubes too, but the design most clearly aimed at driving a hollow tube to collect a core is the tube sampler.