OSHA Confined Spaces Exam Questions
and CORRECT Answers
A permit-required confined space will often have which of the following hazards? - CORRECT
ANSWER - Hazardous atmosphere
Each year, how many confined space deaths and injuries occur? - CORRECT ANSWER -
Hundreds
Excavation involving vapors and storage tanks are examples of a permit-required confined scape
because both have _____________. - CORRECT ANSWER - The potential to contain
hazardous atmospheres
Example of a storage structure in which someone can become trapped or suffocate is: -
CORRECT ANSWER - Storage tank with inward-sloping walls
A permit-required confined space may have an interior shape that could: - CORRECT
ANSWER - Trap or asphyxiate
What is an employer required to do when a permit space is present at a worksite, even though
employees do not need to enter the space? - CORRECT ANSWER - Take steps to prevent
employees from entering the space
According to OSHA standards in Subpart AA, 1926.1204 when must be a written permit space
program be made available to employees or their representatives? - CORRECT
ANSWER - Prior to operations
An employer must ensure the following for entry into a permit space: - CORRECT
ANSWER - Safe methods for entering and exiting space.
, Which of the following is required before entering a confined space? - CORRECT
ANSWER - Atmospheric testing
Oxygen deficiency is defined as an atmosphere with less than: - CORRECT ANSWER -
19.5% oxygen
Bleeding, ventilation, and flushing are all examples of: - CORRECT ANSWER - Confined
space hazard controls
Controlling and removing potential hazardous substances or hazardous energy from entering a
confined space is the control technique known as: - CORRECT ANSWER - Isolation
What does blanking mean? - CORRECT ANSWER - Disconnecting or capping lines that
may empty into the permit space
Electrical, pneumatic, hydraulic, or mechanical energy hazards may require: - CORRECT
ANSWER - LOTO/COHE hazard control procedures
Each person serving as an attendant must be listed on the confined space permit - CORRECT
ANSWER - True
The CSE supervisor must: - CORRECT ANSWER - Authorize and sign the entry permit
Confined space rescue equipment includes: - CORRECT ANSWER - Tripod with hand
winch or hoist, and fully body harness with lifeline
Monitoring equipment in confined spaces must measure which of the following hazards? -
CORRECT ANSWER - Oxygen, flammable gases and vapors, toxic and other air
contaminants.
and CORRECT Answers
A permit-required confined space will often have which of the following hazards? - CORRECT
ANSWER - Hazardous atmosphere
Each year, how many confined space deaths and injuries occur? - CORRECT ANSWER -
Hundreds
Excavation involving vapors and storage tanks are examples of a permit-required confined scape
because both have _____________. - CORRECT ANSWER - The potential to contain
hazardous atmospheres
Example of a storage structure in which someone can become trapped or suffocate is: -
CORRECT ANSWER - Storage tank with inward-sloping walls
A permit-required confined space may have an interior shape that could: - CORRECT
ANSWER - Trap or asphyxiate
What is an employer required to do when a permit space is present at a worksite, even though
employees do not need to enter the space? - CORRECT ANSWER - Take steps to prevent
employees from entering the space
According to OSHA standards in Subpart AA, 1926.1204 when must be a written permit space
program be made available to employees or their representatives? - CORRECT
ANSWER - Prior to operations
An employer must ensure the following for entry into a permit space: - CORRECT
ANSWER - Safe methods for entering and exiting space.
, Which of the following is required before entering a confined space? - CORRECT
ANSWER - Atmospheric testing
Oxygen deficiency is defined as an atmosphere with less than: - CORRECT ANSWER -
19.5% oxygen
Bleeding, ventilation, and flushing are all examples of: - CORRECT ANSWER - Confined
space hazard controls
Controlling and removing potential hazardous substances or hazardous energy from entering a
confined space is the control technique known as: - CORRECT ANSWER - Isolation
What does blanking mean? - CORRECT ANSWER - Disconnecting or capping lines that
may empty into the permit space
Electrical, pneumatic, hydraulic, or mechanical energy hazards may require: - CORRECT
ANSWER - LOTO/COHE hazard control procedures
Each person serving as an attendant must be listed on the confined space permit - CORRECT
ANSWER - True
The CSE supervisor must: - CORRECT ANSWER - Authorize and sign the entry permit
Confined space rescue equipment includes: - CORRECT ANSWER - Tripod with hand
winch or hoist, and fully body harness with lifeline
Monitoring equipment in confined spaces must measure which of the following hazards? -
CORRECT ANSWER - Oxygen, flammable gases and vapors, toxic and other air
contaminants.
