Cave-ins pose the greatest danger to all excavation workers. Therefore, OSHA requires that workers susceptible to cave-ins be protected from this possibility by sloping, benching, supporting, or shielding the sides of excavations.
Which of these is known as the greatest danger?
Explanation: Cave-ins pose the greatest risk and are much more likely than other excavationrelated accidents to result in worker fatalities.
What are some of the dangers of excavations?
Top 5 excavation safety hazards
- Cave-ins. Trench collapses kill an average of two workers every month, making this a serious threat to worker safety. …
- Falls and falling loads. Workers and work equipment can fall into an excavated area. …
- Hazardous atmospheres. …
- Mobile equipment. …
- Hitting utility lines.
Which of the following is the greatest risk of an excavation asphyxiation inhalation of toxic materials fire moving machinery cave-ins?
Cave-ins or collapses are the greatest risks. Other hazards include: Asphyxiation due to lack of oxygen. Inhalation of toxic materials.
What are 3 main protection methods against cave-ins?
To prevent cave-ins: SLOPE or bench trench walls. SHORE trench walls with supports, or. SHIELD trench walls with trench boxes.
What does the Westboro Baptist Church oppose quizlet?
Terms in this set (13) Westboro baptist Church opposes. Homosexuality.
How deep can you dig without shoring?
Trenches 5 feet (1.5 meters) deep or greater require a protective system unless the excavation is made entirely in stable rock. If less than 5 feet deep, a competent person may determine that a protective system is not required.
What are some dangers of excavations quizlet?
The dangers of excavations come from the possibility of cave-ins, in addition to the possibility of the lack of oxygen (asphyxiation), fire, accidental break of underground utility lines (such as gas, electricity), collapse due to moving machinery near the edge of the excavations, inhalation of toxic materials, and …