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Review Questions Safe Work Environment

Review Questions

  1. What PPE must be worn in a hazardous confined space where the entrance is from above?
  2. What must be done to a hazardous confined space where a toxic, flammable, or explosive atmosphere is detected?
  3. What type of soil(s) do not require sloping for the first 1.2 m in a trench?
  4. What are the sloping requirements for type 4 soils?
  5. If a trench is dug in type III soils and is 1 m wide at the bottom and 3 meters deep, how wide should the trench be at the top if it is sloped to prevent cave ins?
  6. If sloping is not practical, what can be used for protection against cave-ins?

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Carpentry Refresher Program Manual Copyright © by Saskatchewan Indian Institute of Technologies-Trades and Industrial is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

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