Confined SpaCe awareneSS TeST QUeSTionS wiTH deTaiLed
Verified anSwerS (100% CorreCT anSwerS) 2026 UpdaTe
/aLreadY Graded a +|| 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 - anSwer-E) All the above
How many times per year are rescue exercises conducted? - anSwer-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. - anSwer-
60%
Studies reveal that every year approximately ______ preventable deaths occur in
confined spaces. - anSwer-67
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 - anSwer-B) a permit-required confined space
,Entering a permit space can prove fatal for an employee when the O2 level is below
______ and above _______ - anSwer-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 - anSwer-True
T/F: If oxygen level is below 16% by volume the environment becomes unstable and
prone to flash fires or explosion - anSwer-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 - anSwer-D) oxygen, flammables, toxics, other
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% - anSwer-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 - anSwer-C) Hazardous atmospheres
Cause of death % from hazardous atmospheres - anSwer-65%
Cause of death % from engulfment - anSwer-13%
Cause of death % from struck by falling objects - anSwer-7%
Cause of death % from heat stress/exposure - anSwer-6%
Cause of death % from other - anSwer-4%
T/F: Confined spaces are large enough and so configured that an employee can bodily
enter and perform assigned work - anSwer-True
T/F: Confined spaces have limited or restricted means for entry or exit - anSwer-True
T/F: Confined spaces are designed for continuous employee occupancy - anSwer-
False- not designed for continuous employee occupancy
T/F: Permit required confined spaces contain or have the potential to contain a
hazardous atmosphere - anSwer-True
T/F: Permit required confined spaces contain a material that has the potential for
engulfing an entrant - anSwer-True
T/F: Permit required confined spaces have an internal configuration such that an
entrant could be trapped or asphyxiated by inwardly converging walls, or a floor which
slopes and tapers to a smaller cross section - anSwer-True
Verified anSwerS (100% CorreCT anSwerS) 2026 UpdaTe
/aLreadY Graded a +|| 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 - anSwer-E) All the above
How many times per year are rescue exercises conducted? - anSwer-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. - anSwer-
60%
Studies reveal that every year approximately ______ preventable deaths occur in
confined spaces. - anSwer-67
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 - anSwer-B) a permit-required confined space
,Entering a permit space can prove fatal for an employee when the O2 level is below
______ and above _______ - anSwer-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 - anSwer-True
T/F: If oxygen level is below 16% by volume the environment becomes unstable and
prone to flash fires or explosion - anSwer-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 - anSwer-D) oxygen, flammables, toxics, other
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% - anSwer-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 - anSwer-C) Hazardous atmospheres
Cause of death % from hazardous atmospheres - anSwer-65%
Cause of death % from engulfment - anSwer-13%
Cause of death % from struck by falling objects - anSwer-7%
Cause of death % from heat stress/exposure - anSwer-6%
Cause of death % from other - anSwer-4%
T/F: Confined spaces are large enough and so configured that an employee can bodily
enter and perform assigned work - anSwer-True
T/F: Confined spaces have limited or restricted means for entry or exit - anSwer-True
T/F: Confined spaces are designed for continuous employee occupancy - anSwer-
False- not designed for continuous employee occupancy
T/F: Permit required confined spaces contain or have the potential to contain a
hazardous atmosphere - anSwer-True
T/F: Permit required confined spaces contain a material that has the potential for
engulfing an entrant - anSwer-True
T/F: Permit required confined spaces have an internal configuration such that an
entrant could be trapped or asphyxiated by inwardly converging walls, or a floor which
slopes and tapers to a smaller cross section - anSwer-True
