Struck-by and Caught Between

Match the following soil types to their characteristics.

• Excavation walls stay vertical

• Type A

• Fine grained; very small particles

• Type B

• Coarse-grained; sand, gravel

• Type C

• Angular rock, silt, and similar soil

• Solid Rock

If you do not know the soil type, how should you treat it?

• Type A

• Type B

• Type C

• Solid rock

How frequently must a competent person inspect an excavation?

• Hourly

• Daily

• Weekly

• Monthly

Which methods are forms of protection in an excavation?

• Sloping

• Benching

• Shoring

• Shielding

The material removed from an excavation how far away from the edge of a trench?

• 2 feet

• 4 feet

• 6 feet

• 8 feet

What part of the tool keeps workers protected from rotating parts?

• Shield

• Guard

• Screen

• Vest