| 1. |
Workers have a right to file a complaint asking OSHA to inspect their workplace if they believe there is a serious hazard or that their employer is not following OSHA’s rules. OSHA will keep all identities confidential. |
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True |
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False |
| 2. |
OSHA generally requires that employers protect workers from cave-ins by______________.? |
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Sloping and benching the sides of the excavation. |
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Supporting the sides of the excavation. |
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Placing a shield between the side of the excavation and the work area. |
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All the above |
| 3. |
Employers must ensure that a _____________ inspects all excavations, adjacent areas, and protective systems daily for possible cave-ins, indications of failures in protective systems and equipment, hazardous atmospheres, and other hazardous Trenching and Excavation Safety 13 conditions. |
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Competent person |
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Project manager |
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Team lead |
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Construction team |
| 4. |
Atmospheric testing is not required before workers enter an excavation greater than 4 feet (1.22 meters) in depth where an oxygen deficiency or a hazardous atmosphere is present or could reasonably be expected, such as in excavations in landfill areas or excavations in areas where hazardous substances are stored nearby. |
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True |
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False |
| 5. |
Which of the following safety factors should be considered when bidding on a job? |
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Soil classification |
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Overhead and underground utilities |
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Number of ladders that may be needed |
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All the above |
| 6. |
To determine the approximate location(s) of utility installations – including sewer, telephone, fuel, electric, and water lines. One common industry practice is to call_________ , the "Call Before You Dig" number, to establish the location of any underground utility installations in the work area. |
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611 |
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711 |
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811 |
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911 |
| 7. |
_____________ are responsible for maintaining materials and equipment used for protective systems. Defective and damaged materials and equipment can cause protective systems to fail and lead to other excavation hazards. |
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OSHA |
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Employers |
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Employees |
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Construction workers |
| 8. |
OSHA requires employers to provide ladders, steps, ramps, or other safe means of egress for workers working in trench excavations 4 feet or deeper. |
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True |
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False |
| 9. |
Which of the following doesn’t fall under the known soil classification categories? |
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Stable rock |
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Type A soil |
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Type Q soil |
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Type C soil |
| 10. |
OSHA defines ____________ as any man-made cut, cavity, trench, or depression in the Earth’s surface formed by earth removal. |
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Excavation |
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Trench |
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Hollow |
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None of the above |
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