Confined Space Exam Questions
Marking Scheme New Update
confined space - Answers -✔✔ - an enclosed area that is large enough and so
configured that an employee can bodily enter
- primary function is something other than human occupancy
- has restricted entry and exit
entry - Answers -✔✔ - ingress by a persons into a confined space
- occurs upon breaking the plane of the confined space portal with any part of the body
- includes all periods of time in which the confined space is occupied
hazardous atmosphere - Answers -✔✔ an atmosphere that may be, or is injurious to
occupants by reason of: oxygen deficiency or enrichment; flammability or explosive; or
toxicity
LEL / LFL - Answers -✔✔ lower explosive limit / lower flammable limit
UEL / UFL - Answers -✔✔ upper explosive limit / upper flammable limit
non-permit confined space (NPCS) - Answers -✔✔ - a space, which by configuration
meets the definition of a permit required confined space but after evaluation is unlikely
to have potential hazards or has the hazards eliminated by engineering controls
- OSHA 1910.146 means a confined space that does not contain or, with respect to
atmospheric hazards, have the potential to contain any hazard capable of causing death
or serious physical harm
oxygen deficient atmosphere - Answers -✔✔ an atmosphere containing less than
19.5% oxygen by volume
oxygen enriched atmosphere - Answers -✔✔ an atmosphere containing more than
23.5% oxygen by volume
permit required confined space (PRCS) - Answers -✔✔ - a confined space, which after
evaluation, is found to contain actual or potential hazards
- because of the hazards, the confined space requires written authorization for entry
vertical rescue - Answers -✔✔ - methodology to move the entrant to safety while all or
a portion of the entrant's weight is supported by life-safety rope or wire
- includes Diagonal Rescue where a portion of the entrant's weight is supported by a
surface within the space
, lighter - Answers -✔✔ methane is __________ than air
- oxygen deficiency
- hydrogen sulfide
- methane
- inert gases - Answers -✔✔ leading specific atmospheric hazardous conditions
needs assessment - Answers -✔✔ - typically part of the pre-planning process
- purpose is to evaluate the responding department's capacity to function safely at any
given emergency incident
- What are the technical capabilities of response agencies?
- Does the department have the necessary equipment to match the response level?
- How many personnel are trained to the respond and work at a confined space search
and rescue operation?
- Established resource list of personnel and equipment.
- Tour your district periodically to compile a list of active establishments where confined
spaces are located.
- Identify the various types of confined spaces located within your district.
- For long-term operations, questions such as how will personnel's hygiene needs be
met?
- How will personnel's need for food and water be met?
- What about a rehab station and medical monitoring of rescuers?
- How will crowd control be handled?
- How will rescuers and victim be protected from the environment, extreme heat,
extreme cold, and rain or thunderstorms?
- What are the legal issues that must be addressed when pre-planning?
- - Answers -✔✔ issues that should be addressed when developing a pre-plan
the AHJ - Answers -✔✔ Operational Protocols should be established by __________
- Recognizing the need for confined space search and rescue.
Initiating contact and establishing communications with victims where possible
- Recognizing and identifying hazards associated with non-entry confined space
emergencies
- Recognizing confined spaces
- Performing non-entry retrieval
- Implementing the emergency response system for confined space emergencies
- Implementing site control and scene management - Answers -✔✔ functions for the
Awareness Level response
- What has happened and who is in charge?
- Contact the victim, if possible.
- Interview witnesses.
- Examine permits.
- Monitor atmosphere within the space.
Marking Scheme New Update
confined space - Answers -✔✔ - an enclosed area that is large enough and so
configured that an employee can bodily enter
- primary function is something other than human occupancy
- has restricted entry and exit
entry - Answers -✔✔ - ingress by a persons into a confined space
- occurs upon breaking the plane of the confined space portal with any part of the body
- includes all periods of time in which the confined space is occupied
hazardous atmosphere - Answers -✔✔ an atmosphere that may be, or is injurious to
occupants by reason of: oxygen deficiency or enrichment; flammability or explosive; or
toxicity
LEL / LFL - Answers -✔✔ lower explosive limit / lower flammable limit
UEL / UFL - Answers -✔✔ upper explosive limit / upper flammable limit
non-permit confined space (NPCS) - Answers -✔✔ - a space, which by configuration
meets the definition of a permit required confined space but after evaluation is unlikely
to have potential hazards or has the hazards eliminated by engineering controls
- OSHA 1910.146 means a confined space that does not contain or, with respect to
atmospheric hazards, have the potential to contain any hazard capable of causing death
or serious physical harm
oxygen deficient atmosphere - Answers -✔✔ an atmosphere containing less than
19.5% oxygen by volume
oxygen enriched atmosphere - Answers -✔✔ an atmosphere containing more than
23.5% oxygen by volume
permit required confined space (PRCS) - Answers -✔✔ - a confined space, which after
evaluation, is found to contain actual or potential hazards
- because of the hazards, the confined space requires written authorization for entry
vertical rescue - Answers -✔✔ - methodology to move the entrant to safety while all or
a portion of the entrant's weight is supported by life-safety rope or wire
- includes Diagonal Rescue where a portion of the entrant's weight is supported by a
surface within the space
, lighter - Answers -✔✔ methane is __________ than air
- oxygen deficiency
- hydrogen sulfide
- methane
- inert gases - Answers -✔✔ leading specific atmospheric hazardous conditions
needs assessment - Answers -✔✔ - typically part of the pre-planning process
- purpose is to evaluate the responding department's capacity to function safely at any
given emergency incident
- What are the technical capabilities of response agencies?
- Does the department have the necessary equipment to match the response level?
- How many personnel are trained to the respond and work at a confined space search
and rescue operation?
- Established resource list of personnel and equipment.
- Tour your district periodically to compile a list of active establishments where confined
spaces are located.
- Identify the various types of confined spaces located within your district.
- For long-term operations, questions such as how will personnel's hygiene needs be
met?
- How will personnel's need for food and water be met?
- What about a rehab station and medical monitoring of rescuers?
- How will crowd control be handled?
- How will rescuers and victim be protected from the environment, extreme heat,
extreme cold, and rain or thunderstorms?
- What are the legal issues that must be addressed when pre-planning?
- - Answers -✔✔ issues that should be addressed when developing a pre-plan
the AHJ - Answers -✔✔ Operational Protocols should be established by __________
- Recognizing the need for confined space search and rescue.
Initiating contact and establishing communications with victims where possible
- Recognizing and identifying hazards associated with non-entry confined space
emergencies
- Recognizing confined spaces
- Performing non-entry retrieval
- Implementing the emergency response system for confined space emergencies
- Implementing site control and scene management - Answers -✔✔ functions for the
Awareness Level response
- What has happened and who is in charge?
- Contact the victim, if possible.
- Interview witnesses.
- Examine permits.
- Monitor atmosphere within the space.
