test
B
C
D
E
100
Test
test
100
The color of paint used to mark electrical utilities
What is red
100
Time allowed for utility companies to mark property for a dig ticket
What is 48 hours
100
A one call service that assists in the process of marking utilities before a dig operation.
What is 811
100
Class III vests and paddles are common equipment used for this.
What is traffic control
200
When excavations cannot be easily seen, they must be protected by this.
What is guard rail, fence, or barricade
200
Ladders must rise this height above the grade of a trench.
What is 3 feet
200
Spoil piles must be this far from the edge of an excavation.
What is two feet.
200
A competent person must inspect an excavation site, adjacent areas, and protective systems at this interval
What is daily (and after rainfall)
200
Never enter a trench dug by other companies until this has evaluated the site.
What is Liberty Utilities competent person
300
Separation of soil, or rock material from the side of an excavation.
What is cave-in
300
When an excavation is five foot or greater, or the competent person recognizes potential for cave-ins these are used.
What is protective systems
300
Granular soils, sand, and loamy soils are classified as this.
What is type "c" soils
300
Angular gravel (crushed rock), silt, and silt loam are classified as this.
What is type "b" soils
300
Clay, silty clay, clay loam, and hard pan are classified as this.
What is type "a" soils
400
The competent person shall conduct these to ensure the safety of employees working in and near excavations.
What is inspections
400
Excavating below the base or footing of foundations is not permitted unless the excavation is in stable rock or the operation is approved by this.
What is registered professional engineer
400
When working around excavation operations near unstable structures such as sidewalks and pavement; shoring, bracing or this should be used.
What is pinning
400
Depending on water content, a cubic foot of soil can weigh approximately this.
What is 100 lbs
400
Shoring is needed if a trench is this height.
What is 5 foot or greater
500
The abbreviation S.C.B.A. stands for this.
What is self contained breathing apparatus
500
For a trench of four feet or greater, you need atmospheric testing equipment and this.
What is means of egress
500
Employees shall be provided with and shall wear these when working near high traffic areas.
What is high visibility and reflectorized vests
500
Maximum distance between workers and exit points in an excavation.
What is 20 feet
500
When atmospheres contain live gas, this is utilized.
What is proper respiratory protection
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