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TRENCHING AND SHORING SAFETY IN CONSTRUCTION ENVIRONMENTS – M269

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1
True or False?... Vehicular traffic or other projects being performed on a worksite can create vibrations that can cause a trench to cave in.
2
True or False?... "Type C" soil is the most "cohesive" type of soil.
3
True or False?... Changes in the weather that could affect the stability of a trench include rain and snow, freezing or thawing temperatures and high winds.
4
True or False?… You can work in a trench safely without wearing a hard hat.
5
True or False?... If a cave-in occurs in a trench you are working around, you should enter the trench as quickly as possible to rescue any coworkers who may be trapped.
6
True or False?... Trenches are naturally stable, and even unsupported trenches will not collapse unless disturbed by workers or heavy equipment.
7
True or False?... Multiple types of soil can be found on a worksite, and even in a single trench.
8
True or False?... OSHA requires all of the employees who will be working in a trench to inspect the worksite, the trench itself and the protective systems before they enter the trench at the start of their work shift.
9
True or False?... If a hazard is identified in a trench during a work shift, workers must leave the trench until the hazard has been controlled or eliminated.
10
True or False?... You should never enter an unprotected trench that is 5 feet or more deep.