OSHA 500 EXAM 2026|2027 QUESTIONS WITH VERIFIED ANSWERS
|LATEST UPDATE
What is the maximum number of broken wires allowed for wire rope slings used in construction? -
Correct answer -10% of the total wires in any 8 diameter section
No employer shall use any motor vehicle equipment having an obstructed view to the rear unless the
vehicle has a reverse signal alarm audible above the surrounding noise level or the vehicle is backed up
only when: - Correct answer -An observer signals that it is safe to do so
Whenever heavy equipment is parked, the parking brake must be set, as required in Subpart O.
Additionally, any equipment parked on an incline must also have the: - Correct answer -Wheels chocked
Demolition workers are exposed to excessive hazards that require a control measure to prevent the
premature collapse of any portion of the structure determined by a competent person. What is the
specific control measure for demolition called? - Correct answer -Engineering survey
Which of the following is a true statement regarding atmospheric hazards in permit-required confined
spaces (i.e., permit spaces)? - Correct answer -Gases and vapors that are heavier than air may
accumulate in the lower areas of a permit space
1|Page
, Asphyxiation is the leading cause of death in confined spaces resulting from oxygen deficiency or from
exposure to toxic atmospheres. What other two hazards have caused asphyxiation resulting in death? -
Correct answer -Engulfment and entrapment
The possibility of being struck by a rotating crane is a serious potential hazard on a construction site. To
prevent employees from entering these hazard areas, the employer must: - Correct answer -Erect and
maintain control lines, warning lines, railings or similar barriers to mark the boundaries of the hazard
areas
According to Subpart CC, during operations requiring signals, the ability to transmit signals between the
operator and signal person must be maintained. If that ability is interrupted at any time, the operator: -
Correct answer -Must safely stop operations requiring signals until it is reestablished and a proper signal
is given and understood
Rigging equipment, including wire ropes, chains and slings must be inspected prior to use. Who is
required to perform this inspection each day before the equipment is used? - Correct answer -Competent
person
Special custom designed grabs, hooks, clamps and other lifting accessories must be marked to indicate
the safe working loads. Also, they must be proof-tested prior to use to at least___________ percent of
their rated load. - Correct answer -125
2|Page
|LATEST UPDATE
What is the maximum number of broken wires allowed for wire rope slings used in construction? -
Correct answer -10% of the total wires in any 8 diameter section
No employer shall use any motor vehicle equipment having an obstructed view to the rear unless the
vehicle has a reverse signal alarm audible above the surrounding noise level or the vehicle is backed up
only when: - Correct answer -An observer signals that it is safe to do so
Whenever heavy equipment is parked, the parking brake must be set, as required in Subpart O.
Additionally, any equipment parked on an incline must also have the: - Correct answer -Wheels chocked
Demolition workers are exposed to excessive hazards that require a control measure to prevent the
premature collapse of any portion of the structure determined by a competent person. What is the
specific control measure for demolition called? - Correct answer -Engineering survey
Which of the following is a true statement regarding atmospheric hazards in permit-required confined
spaces (i.e., permit spaces)? - Correct answer -Gases and vapors that are heavier than air may
accumulate in the lower areas of a permit space
1|Page
, Asphyxiation is the leading cause of death in confined spaces resulting from oxygen deficiency or from
exposure to toxic atmospheres. What other two hazards have caused asphyxiation resulting in death? -
Correct answer -Engulfment and entrapment
The possibility of being struck by a rotating crane is a serious potential hazard on a construction site. To
prevent employees from entering these hazard areas, the employer must: - Correct answer -Erect and
maintain control lines, warning lines, railings or similar barriers to mark the boundaries of the hazard
areas
According to Subpart CC, during operations requiring signals, the ability to transmit signals between the
operator and signal person must be maintained. If that ability is interrupted at any time, the operator: -
Correct answer -Must safely stop operations requiring signals until it is reestablished and a proper signal
is given and understood
Rigging equipment, including wire ropes, chains and slings must be inspected prior to use. Who is
required to perform this inspection each day before the equipment is used? - Correct answer -Competent
person
Special custom designed grabs, hooks, clamps and other lifting accessories must be marked to indicate
the safe working loads. Also, they must be proof-tested prior to use to at least___________ percent of
their rated load. - Correct answer -125
2|Page
