Confined Spaces Hazard Control Quiz

Caving in, sloughing, or collapsing of walls or sides

Formation of a toxic or explosive atmosphere (correct)

Contact with foundations, adjacent structures, or buildings

Contact with buried services

Shoring (correct)

Using powered mobile equipment

Flooding and water accumulation

Sloping

Any excavation that requires a confined space entry procedure

Any cut, cavity, trench, or depression in the earth’s surface resulting from rock or soil removal

An excavation that is less than 3.7 m wide at the bottom, over 1.2 m deep, and of any length

Any work, operation, or activity that results in a disturbance or displacement of the earth to a depth greater than 30 cm (correct)

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