Confined Space Awareness Test
Questions and Answers 100% Pass
1. Which of the following is included but not limited to confided spaces?
A) Vessels
B) Tanks
C) Vaults
D) Trenches
E) All the Above - ✔✔E) All the above
How many times per year are rescue exercises conducted? - ✔✔At least once
Many workers are injured and killed each year while working in confined spaces. An
estimated ______ of the fatalities have been among the would-be rescuers. - ✔✔60%
Studies reveal that every year approximately ______ preventable deaths occur in
confined spaces. - ✔✔67
Katelyn Whitman, All Rights Reserved © 2025 1
,A space that meets the definition of a confined space and contains other recognized
serious safety and health hazards is what?
A) a confined space
B) a permit-required confined space
C) a non-permit-required confined space
D) not a confined space - ✔✔B) a permit-required confined space
Entering a permit space can prove fatal for an employee when the O2 level is below
______ and above _______ - ✔✔Below 19.5% and Above 23.5%
T/F: If oxygen level is above 23.5% by volume the environment becomes unstable and
prone to flash fires or explosion - ✔✔True
T/F: If oxygen level is below 16% by volume the environment becomes unstable and
prone to flash fires or explosion - ✔✔True
What is the correct order of atmospheric testing?
A) flammables, toxics, oxygen, other
B) toxics, oxygen, flammables, other
C) oxygen, toxics, flammables, other
D) oxygen, flammables, toxics, other - ✔✔D) oxygen, flammables, toxics, other
Katelyn Whitman, All Rights Reserved © 2025 2
, Atmospheres that contain a flammable component above ______ % of its Lower
Explosive Limit are considered hazardous for confined space entry?
A) 5%
B) 10%
C) 20%
D) 30% - ✔✔B) 10%
Which cause of death claims the highest percentage in confined spaces?
A) Engulfment
B) Heat stress/exposure
C) Hazardous atmospheres
D) Struck by falling objects - ✔✔C) Hazardous atmospheres
Cause of death % from hazardous atmospheres - ✔✔65%
Cause of death % from engulfment - ✔✔13%
Cause of death % from struck by falling objects - ✔✔7%
Cause of death % from heat stress/exposure - ✔✔6%
Katelyn Whitman, All Rights Reserved © 2025 3
Questions and Answers 100% Pass
1. Which of the following is included but not limited to confided spaces?
A) Vessels
B) Tanks
C) Vaults
D) Trenches
E) All the Above - ✔✔E) All the above
How many times per year are rescue exercises conducted? - ✔✔At least once
Many workers are injured and killed each year while working in confined spaces. An
estimated ______ of the fatalities have been among the would-be rescuers. - ✔✔60%
Studies reveal that every year approximately ______ preventable deaths occur in
confined spaces. - ✔✔67
Katelyn Whitman, All Rights Reserved © 2025 1
,A space that meets the definition of a confined space and contains other recognized
serious safety and health hazards is what?
A) a confined space
B) a permit-required confined space
C) a non-permit-required confined space
D) not a confined space - ✔✔B) a permit-required confined space
Entering a permit space can prove fatal for an employee when the O2 level is below
______ and above _______ - ✔✔Below 19.5% and Above 23.5%
T/F: If oxygen level is above 23.5% by volume the environment becomes unstable and
prone to flash fires or explosion - ✔✔True
T/F: If oxygen level is below 16% by volume the environment becomes unstable and
prone to flash fires or explosion - ✔✔True
What is the correct order of atmospheric testing?
A) flammables, toxics, oxygen, other
B) toxics, oxygen, flammables, other
C) oxygen, toxics, flammables, other
D) oxygen, flammables, toxics, other - ✔✔D) oxygen, flammables, toxics, other
Katelyn Whitman, All Rights Reserved © 2025 2
, Atmospheres that contain a flammable component above ______ % of its Lower
Explosive Limit are considered hazardous for confined space entry?
A) 5%
B) 10%
C) 20%
D) 30% - ✔✔B) 10%
Which cause of death claims the highest percentage in confined spaces?
A) Engulfment
B) Heat stress/exposure
C) Hazardous atmospheres
D) Struck by falling objects - ✔✔C) Hazardous atmospheres
Cause of death % from hazardous atmospheres - ✔✔65%
Cause of death % from engulfment - ✔✔13%
Cause of death % from struck by falling objects - ✔✔7%
Cause of death % from heat stress/exposure - ✔✔6%
Katelyn Whitman, All Rights Reserved © 2025 3
