Confined Spaces

A confined space has

• Limited means of entry and/or exit

• Is large enough for a worker to enter it

• Is not intended for regular/continuous occupancy

• All of the above

Entrant is capable of recognizing a hazard is present and is able to exit from the space is known as:

• Self rescue

• Non entry rescue

• Entry rescue

• All of the above

What is the primary purpose of a confined space entry permit?

• To document the hazards and controls in place

• To allow unlimited access to the space

• To replace the need for a safety supervisor

• To ensure the space is always occupied

To test an atmosphere in a tank you should test the atmosphere at

• Top

• Middle

• Bottom

• All of the above

Work performed in a confined space can create a toxic atmosphere

• True

• False

Oxygen deficient atmosphere is anything below what percentage

• 15%

• 19.5%

• 20%

• 16%

What is the role of an attendant during a confined space entry?

• To perform the work inside the space

• To monitor the conditions inside and outside the space

• To replace the entrant if needed

• To supervise the entire worksite

You do not need to test the atmosphere before you enter a confined space

• True

• False

You have the right to a safe and healthful working conditions

• True

• False

What is the maximum allowable concentration of carbon monoxide in a confined space?

• 25 ppm

• 50 ppm

• 100 ppm

• 200 ppm