Pipe & Excavation General Info Quiz

A type of excavator used for digging shallow trenches with cross lines.

A material that significantly slows down dozer productivity due to its resistance to being moved.

A type of soil that is easily compacted using water and vibration.

The maximum angle at which a material can be piled without collapsing.

The recommended slope for average soils to ensure stability.

Circular lines on a topographical map that indicate an elevation change.

The type of copper pipe typically used for connecting to the top of a water heater.

The type of pipe commonly used for distributing gas behind hidden walls.

A 100% slope is equivalent to a 45-degree angle.

Wellpoint dewatering systems are not as effective in fine-grained soils compared to other methods like electro-osmosis or vacuum dewatering.

A downhill slope is characterized by a negative grade, meaning the elevation decreases as you move along the slope.

Adequate boosting allows scrapers to spread the soil remaining in front of the bowl as it is lifted.

Nuclear compaction tests are advantageous because they don't require removing soil samples from the site, allowing for on-site testing.

Coarse-grained soils, like gravel, tend to withstand saturation better due to larger particle sizes and better drainage.

When dealing with saturated, poorly compacted silt or clay, the best course of action is to haul it away and replace it with drier soil for better compaction.

Sedimentary rocks are the easiest to rip because they are typically less dense and have weaker bonds.

A 100% slope indicates an angle of 45 degrees. Imagine a right triangle with equal sides. The slope represents the ratio of the vertical rise to the horizontal run, and in this case, they are equal, resulting in a 45-degree angle.

Wellpoint dewatering systems are not ideal for fine-grained soils like clay or silt. These soils have tiny particles, making it harder for water to drain through them. Other methods are needed for effective dewatering.

Nuclear compaction tests are advantageous because they don't require removing soil samples from the site, allowing for on-site testing. It's fast and convenient for determining soil compaction directly.

Coarse-grained soils, like gravel, are better able to withstand saturation due to their larger particle sizes and better drainage. This allows water to flow through easily, preventing excessive saturation.

When dealing with saturated, poorly compacted silt or clay, the best course of action is to haul it away and replace it with drier soil for better compaction. This ensures a stable base and allows for proper compaction during construction.

Sedimentary rocks are the easiest to rip because they are typically less dense and have weaker bonds between their layers. This makes them more susceptible to breaking apart under the force of ripping equipment.