Safety

Question 1

Define “confined space”

Answer 1

• sized and configured such that an employee can enter and conduct work
• has limited or restricted entry/exit
• is not designed for continuous occupancy

Question 2

Hazardous atmosphere oxygen threshold

Answer 2

<19.5%
or
>23.5%

Question 3

If there is equipment operating, welding, cutting, or burning being done in a trench then the following must be done

Answer 3

increase atmosphere testing frequency

Question 4

How often should oxygen levels be tested?

Answer 4

• before entry

- regularly after entry