Confined Space Exam Test Questions
And Correct Answers
Lockout - Tag out
Take care of everything in your space - Answers -✔✔ Space Isolation-Must be
performed by an "Authorized" employee only!
Minimum number of people on confined space - Answers -✔✔ 4 but usually there's a
lot more
____ percent of would-be rescuers die. Of that percentage the cause of death in
hazardous atmosphere ____ percent of the time. ____ percent of the time the
hazardous atmospheres are ____ deficient. - Answers -✔✔ 60, 65, 90, O2
OSHA - Answers -✔✔ Occupational Safety and Health Administration:
Fed/OSHA - Code of Federal Regulations (CFR)
Cal/OSHA - California Code of Regulations (CCR)
*Cal/OSHA is more strict than Fed/OSHA
ANSI - Answers -✔✔ American National Standards Institute:
Safety requirements for working in tanks and other confined spaces (Statistics)
*Also set standards, compliance may be mandatory
NIOSH - Answers -✔✔ National Institute for Occupational Safety and Health:
Working in confined spaces (Recommendations)
*Also set standards, compliance may be mandatory
CFR Permit required confined space - Answers -✔✔ Section 29 CFR 1910.146
Part 1910 - General industry ONLY
Intent vs Letter of the law
CFR Covered by other regulation - Answers -✔✔ Shipyard employment - Part 1915
Construction - part 1926
Agriculture - 1928
*Performance-oriented not specification-oriented
CCR General Industry Safety Orders - Answers -✔✔ Subchapter 7 General industry
safety orders
Group 16 Control of hazardous substances
Article 108 Confined spaces
Section 5156, 5157, 5158
, *Most of the information is in section 5157
(Fire departments will adhere to the letter of the law)
Definition: Acceptable entry conditions - Answers -✔✔ Conditions that must exist in a
permit space to allow entry and to ensure that employees involved with a permit-
required confined space entry can SAFELY ENTER AND WORK within the space.
Definition: Attendant - Answers -✔✔ Individual stationed OUTSIDE one or more permit
spaces who monitors the authorized entrants and who performs all attendant's duties
assigned in the employer's permit space program.
Definition: Authorized entrant - Answers -✔✔ An employee who is authorized by the
employer to enter a permit space.
Definition: Blanking or blinding - Answers -✔✔ BLOCKING A PIPE, LINE, OR DUCT
Absolute closure of a pipe, line, or duct by the fastening of a solid place (such as a
spectacle blind or a skillet blind) that completely covers the bore and that is capable of
withstanding the maximum pressure of the pipe, line, or duct with no leakage beyond
the plate.
Definition: Confined space - Answers -✔✔ A space that:
1) Is large enough and so configured that an employee can bodily enter and perform
assigned work
2) Has limited or restricted means for entry or exit (e.g. tanks, vessels, silos, storage
bins, hoppers, vaults, and pits are spaces that may have limited means of entry)
3) Is not designed for continuous employee occupancy
Definition: Double block and bleed - Answers -✔✔ The closure of a line, duct, or pipe
by closing and locking or tagging two in-line valves and by opening and locking or
tagging a drain or vent valve in the line between the two closed valves.
Definition: Emergency - Answers -✔✔ Any occurrence (including any failure of hazard
control or monitoring equipment) or event internal or external to the permit space that
could endanger entrants.
Definition: Engulfment - Answers -✔✔ The surrounding and effective capture of a
person by liquid or finely divided (flowable) solid substance that can be aspirated to
cause death by filling or plugging the respiratory system or that can exert enough force
on the body to cause death by strangulation, construction, or crushing
Definition: Entry - Answers -✔✔ The action by which a person passes through an
opening into a permit-required confined space. Entry includes ensuing work activities in
that space and is considered to have occurred as soon as any part of the entrant;s body
breaks the plane of an opening into the space.
And Correct Answers
Lockout - Tag out
Take care of everything in your space - Answers -✔✔ Space Isolation-Must be
performed by an "Authorized" employee only!
Minimum number of people on confined space - Answers -✔✔ 4 but usually there's a
lot more
____ percent of would-be rescuers die. Of that percentage the cause of death in
hazardous atmosphere ____ percent of the time. ____ percent of the time the
hazardous atmospheres are ____ deficient. - Answers -✔✔ 60, 65, 90, O2
OSHA - Answers -✔✔ Occupational Safety and Health Administration:
Fed/OSHA - Code of Federal Regulations (CFR)
Cal/OSHA - California Code of Regulations (CCR)
*Cal/OSHA is more strict than Fed/OSHA
ANSI - Answers -✔✔ American National Standards Institute:
Safety requirements for working in tanks and other confined spaces (Statistics)
*Also set standards, compliance may be mandatory
NIOSH - Answers -✔✔ National Institute for Occupational Safety and Health:
Working in confined spaces (Recommendations)
*Also set standards, compliance may be mandatory
CFR Permit required confined space - Answers -✔✔ Section 29 CFR 1910.146
Part 1910 - General industry ONLY
Intent vs Letter of the law
CFR Covered by other regulation - Answers -✔✔ Shipyard employment - Part 1915
Construction - part 1926
Agriculture - 1928
*Performance-oriented not specification-oriented
CCR General Industry Safety Orders - Answers -✔✔ Subchapter 7 General industry
safety orders
Group 16 Control of hazardous substances
Article 108 Confined spaces
Section 5156, 5157, 5158
, *Most of the information is in section 5157
(Fire departments will adhere to the letter of the law)
Definition: Acceptable entry conditions - Answers -✔✔ Conditions that must exist in a
permit space to allow entry and to ensure that employees involved with a permit-
required confined space entry can SAFELY ENTER AND WORK within the space.
Definition: Attendant - Answers -✔✔ Individual stationed OUTSIDE one or more permit
spaces who monitors the authorized entrants and who performs all attendant's duties
assigned in the employer's permit space program.
Definition: Authorized entrant - Answers -✔✔ An employee who is authorized by the
employer to enter a permit space.
Definition: Blanking or blinding - Answers -✔✔ BLOCKING A PIPE, LINE, OR DUCT
Absolute closure of a pipe, line, or duct by the fastening of a solid place (such as a
spectacle blind or a skillet blind) that completely covers the bore and that is capable of
withstanding the maximum pressure of the pipe, line, or duct with no leakage beyond
the plate.
Definition: Confined space - Answers -✔✔ A space that:
1) Is large enough and so configured that an employee can bodily enter and perform
assigned work
2) Has limited or restricted means for entry or exit (e.g. tanks, vessels, silos, storage
bins, hoppers, vaults, and pits are spaces that may have limited means of entry)
3) Is not designed for continuous employee occupancy
Definition: Double block and bleed - Answers -✔✔ The closure of a line, duct, or pipe
by closing and locking or tagging two in-line valves and by opening and locking or
tagging a drain or vent valve in the line between the two closed valves.
Definition: Emergency - Answers -✔✔ Any occurrence (including any failure of hazard
control or monitoring equipment) or event internal or external to the permit space that
could endanger entrants.
Definition: Engulfment - Answers -✔✔ The surrounding and effective capture of a
person by liquid or finely divided (flowable) solid substance that can be aspirated to
cause death by filling or plugging the respiratory system or that can exert enough force
on the body to cause death by strangulation, construction, or crushing
Definition: Entry - Answers -✔✔ The action by which a person passes through an
opening into a permit-required confined space. Entry includes ensuing work activities in
that space and is considered to have occurred as soon as any part of the entrant;s body
breaks the plane of an opening into the space.
