3.3.9 TRT-Confined Space

Question 1

What OSHA regulation covers confined space emergencies?

Answer 1

29 CFR 1910.146

Question 2

What three conditions must be present to be considered confined space?

Answer 2

large enough for a person to work in
limited entry/exit
not for continuous occupancy

Question 3

What are the three designations for confined space workers?

Answer 3

entrant
attendant
entry supervisor

Question 4

What is the OSHA defined minimum safe level for oxygen content in air?

Answer 4

19.5%

Question 5

What is the OSHA defined maximum safe level for oxygen content in air?

Answer 5

23.5%

Question 6

Any reading which is _____% or greater above the LEL of the gas for which monitoring device is calibrated will be cause to initiate an atmospheric change in the confined space prior to entry.

Answer 6

10%

Question 7

Where in the space should air samples be taken to test for gases?

Answer 7

near the top

1-2 feet above the floor

Question 8

Is turnout gear recommended when the potential for thermal burn is not present while operating in confined spaces?

Answer 8

no

Question 9

Is it necessary for a dept member to standby the controls of any machinery that has been locked out/tagged out by company representatives?

Answer 9

yes

Question 10

What shall personnel operating inside of a confined space with engulfment potential wear?

Answer 10

SCBA or SAS
appropriate clothing
class 3 body harness with attached line