General Knowledge
OSHA was started by what organizations?
Labor Unions
Who is responsible for safety on an excavation site?
The Competent Person
Soil classifications are found under which appendix?
Appendix A
When benching Type C soil, what is the maximum height of the first bench?
Not allowed with Type C soil.
OSHA requires exaction inspections at least how often?
Daily
What act was introduced to Congress to begin OSHA
Williams-Steiger Act
Who designates the competent person?
Soil classification is based on what two conditions?
Site conditions and soil composition
What two provisions must be met to excavate 2 feet blow a trench shield?
Shield rated for full depth and no danger of soil coming from behind or below
Surface encumbrances must be removed or supported to do what?
Safeguard employees
What is the maximum penalty that may be assessed for a single, non-criminal OSHA violation?
$70,000
At what depth must trench protection be used?
5 feet (egress required at 4 feet)
Layered soil with a 4:1 slope is classified as what soil type?
Which standard addresses protective system requirements?
1926.652
Structural ramps employee use must be designed by who?
Competent Person
What year was the final rule for CFR 1926 Subpart P published?
1971
How far must equipment and spoil piles be kept from the edge of an excavation?
2 feet
Thumb penetration, plasticity, and pocket penetrometer are used to determine what soil composition?
Cohesive
What is the minimum roll-off protection when using a trench shield on a sloped excavation?
18 inches
Structural ramps for equipment access must be designed by who?
Competent Person qualified in structural design
Appendix A of Subpart P covers what?
Soil Classification
At what depth must a competent person consider that a hazardous atmosphere could exist?
4 feet
Type C-60 soil is defined in OSHA Subpart P Appendix A-True or False?
False
Trench shields must be installed to prevent what type of movement under sudden loads?
Lateral and vertical movement
What three attributes must a competent person have under Subpart P?
Training, experience, and authority