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Questions and Answers
What is the maximum allowable lateral travel distance for employees in trench excavations that are 4' or more in depth?
What is the maximum allowable lateral travel distance for employees in trench excavations that are 4' or more in depth?
- 25 Feet (correct)
- 50 Feet
- 40 Feet
- 22 Feet
How many inches may each end of a platform, 10 feet or less in length, extend over its support?
How many inches may each end of a platform, 10 feet or less in length, extend over its support?
- 2 feet
- 18 inches
- 24 inches
- 12 inches (correct)
At what working height is it mandatory to use a fall arrest system?
At what working height is it mandatory to use a fall arrest system?
- 6 Feet (correct)
- 10 Feet
- 4 Feet
- 1 Feet
Which statement about platforms that extend beyond their support is false?
Which statement about platforms that extend beyond their support is false?
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What is the purpose of providing stairways, ladders, or ramps in trench excavations?
What is the purpose of providing stairways, ladders, or ramps in trench excavations?
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Study Notes
Safe Egress from Trenches
- A stairway, ladder, ramp or other safe means of egress must be available to employees working in trenches deeper than 4 feet.
- The safe egress point must be located within 25 feet of lateral travel for employees to reach.
Platform Safety Requirements
- Platforms less than 10 feet in length can have a maximum of 12 inches extending beyond their support.
- This cantilever must be designed to support employees and materials without tipping or have guardrails to prevent access.
Fall Arrest Systems
- A fall arrest system is required any time a worker is working at a height exceeding 1 foot.
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