OSHA 500 FINAL 2026/2027 EXAMS QUESTIONS AND
SOLUTIONS RATED A+
✔✔According to the Hazard Communication Standard, when just employers
communicate hazard information to employees? - ✔✔At the time of the employee's
initial assignment and whenever a new physical or health hazard is introduced into their
work area
✔✔When steel erection contractors engage in multiple lift rigging, the maximum number
of members. In a single lift must not exceed - ✔✔5
✔✔A leading cause of crane fatalities in contact with overhead power lines. What is the
minimum safe clearance between a crane in use and energized power lines when the
voltage is unknown? - ✔✔20 feet
✔✔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: - ✔✔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: - ✔✔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? - ✔✔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. - ✔✔125
✔✔What is the maximum number of broken wires allowed for wire rope slings used in
construction? - ✔✔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: - ✔✔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: -
✔✔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? -
✔✔Engineering survey
✔✔Which of the following is a true statement regarding atmospheric hazards in permit-
required confined spaces (i.e., permit spaces)? - ✔✔Gases and vapors that are heavier
than air may accumulate in the lower areas of a permit space
✔✔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? - ✔✔Engulfment and entrapment
✔✔The OSHA 300 Log, privacy case list (if one exists), the annual summary, and the
OSHA 301 Incident Report must be kept for: - ✔✔5 years
✔✔During the required records retention period, which of the following documents must
be updating? - ✔✔OSHA 300 log
✔✔At what height is fall protection required according to Subpart M? - ✔✔When a drop
of 6 feet or more to a lower level or when working over a hazardous location regardless
of distance
✔✔Which of the following is prohibited as part of a personal fall arrest system? -
✔✔Body belt
✔✔Guardrail systems when used as fall protection must meet a specific top rail height
requirement of 42 inches plus or minus ___________ above the walking/working level. -
✔✔3 inches
✔✔A conventional method of fall protection can include a personal fall arrest system
and guardrail system. Which of the following is also a conventional method of fall
protection? - ✔✔Safety net system
✔✔While in a trench excavation, 4' deep or deeper, the maximum distance a worker
should have to travel to an egress ladder is: - ✔✔25 feet
✔✔Cave-ins pose the greatest risk and are much more likely than other excavation
related accidents to result in worker fatalities. Other potential hazards for which OSHA's
SOLUTIONS RATED A+
✔✔According to the Hazard Communication Standard, when just employers
communicate hazard information to employees? - ✔✔At the time of the employee's
initial assignment and whenever a new physical or health hazard is introduced into their
work area
✔✔When steel erection contractors engage in multiple lift rigging, the maximum number
of members. In a single lift must not exceed - ✔✔5
✔✔A leading cause of crane fatalities in contact with overhead power lines. What is the
minimum safe clearance between a crane in use and energized power lines when the
voltage is unknown? - ✔✔20 feet
✔✔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: - ✔✔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: - ✔✔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? - ✔✔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. - ✔✔125
✔✔What is the maximum number of broken wires allowed for wire rope slings used in
construction? - ✔✔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: - ✔✔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: -
✔✔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? -
✔✔Engineering survey
✔✔Which of the following is a true statement regarding atmospheric hazards in permit-
required confined spaces (i.e., permit spaces)? - ✔✔Gases and vapors that are heavier
than air may accumulate in the lower areas of a permit space
✔✔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? - ✔✔Engulfment and entrapment
✔✔The OSHA 300 Log, privacy case list (if one exists), the annual summary, and the
OSHA 301 Incident Report must be kept for: - ✔✔5 years
✔✔During the required records retention period, which of the following documents must
be updating? - ✔✔OSHA 300 log
✔✔At what height is fall protection required according to Subpart M? - ✔✔When a drop
of 6 feet or more to a lower level or when working over a hazardous location regardless
of distance
✔✔Which of the following is prohibited as part of a personal fall arrest system? -
✔✔Body belt
✔✔Guardrail systems when used as fall protection must meet a specific top rail height
requirement of 42 inches plus or minus ___________ above the walking/working level. -
✔✔3 inches
✔✔A conventional method of fall protection can include a personal fall arrest system
and guardrail system. Which of the following is also a conventional method of fall
protection? - ✔✔Safety net system
✔✔While in a trench excavation, 4' deep or deeper, the maximum distance a worker
should have to travel to an egress ladder is: - ✔✔25 feet
✔✔Cave-ins pose the greatest risk and are much more likely than other excavation
related accidents to result in worker fatalities. Other potential hazards for which OSHA's
