WorksheetsExcavations in Construction
Total questions: 6
Worksheet time: 3mins
What two requirements must be met so that a trench does not need to have a protective system installed? Select all that apply.
The trench will be less than 5 feet deep or made entirely out of stable rock.
A competent person has examined the ground and finds no indication of a potential cave-in.
The trench will be greater than 10 feet deep.
There are ways to protect yourself when excavating. Which of the following is a way to protect yourself when working around excavations?
Slope or bench the sides of the excavation and support the sides of the excavation.
Have a competent person identify that the work site is hazardous; no employees can declare an excavation unsafe.
Support systems, shield systems, or other protective systems should be used only when the excavation is 10 feet in depth or deeper.
Place a shield outside the work area.
An excavation is at risk for a cave-in because the walls of the excavation are unstable. What type of excavation protection will address this situation?
Fall prevention
Oxygen deficiency and toxic fumes
Shoring
What is the minimum distance that excavation materials, tools, and other supplies be kept back from the excavation's edge?
1 foot
2 feet
7.5 feet
25 feet
Whose responsibility is it to keep excavated dirt, rocks, and other materials back a sufficient distance from the excavation’s edge?
Employer
Employee
Whose responsibility is it to correct hazards which can be corrected?
Employer
Employee
