Term
| Minimum and maximum measurements for timber shore struts in relation to each other, top and bottom of the trench |
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Definition
| Struts must be 0"-24" from the bottom, 18"-24" from the top of the shore plywood and no more than 4ft apart from each other on center. |
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Term
| By definition, what is a trench? |
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Definition
| A trench must be deeper than it is wide but no more than 15ft deep |
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Term
| By OSHA what is an excavation? |
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Definition
| Any man-made cut, cavity, trench, or depression in the earths surface formed by earth removal. |
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Term
| At what height in a trench is shoring not required? |
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Definition
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Term
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Definition
1. Spoil in
2. Lip in
3. Shear in-
4. Slough in |
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Term
| What are potential dangers to rescuers and victims in a trench |
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Definition
| Vibrations, utility lines, weather, hazmat, personal hazards, confined space hazards |
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Term
| Where should you approach a trench from? |
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Definition
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Term
| What is the most important aspect of trench rescue? |
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Definition
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Term
| When should you place a ladder in a trench? |
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Definition
| If trench is greater than 4 feet |
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Term
| Every how so often should a Ladder be placed in a trench? and how far should it extend? |
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Definition
| Every 25 feet and at least 3 feet above access |
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Term
| What 4 questions should you ask when you arrive upon a trench rescue? |
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Definition
How many victims?
Location?
What has been done to help?
What happened, what were they doing? |
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Term
| After safety and ladder placement, what is next in a trench rescue? |
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Definition
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Term
| What is the minimum distance for your spoil pile from the trench? |
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Definition
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Term
| What should be done for edge protection? |
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Definition
| Place two 2x12's on the spoil pile side and 4x8 plywood on the opposite side. |
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Term
| Tallest height for your spoil pile? |
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Definition
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Term
| When should you take ventilation measures in a trench rescue? |
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Definition
| 4 foot wide trench, have some kind of tape to ensure ventilation is always working |
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Term
| For Side Wall Protection in Trench Rescue, what size must uprights be? |
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Definition
| minimum 2x8, commonly 2x12 used |
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Term
| For Side Wall Protection in trench Rescue, the plywood sheeting must be ___ feet but not more than ___feet from the bottom. |
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Definition
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Term
| In trench rescue, can plywood sheeting be intended as a structural member? |
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Definition
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