Fall Protection Practice Questions

Explanation: OSHA requires fall protection at 6 feet or more above a lower level in construction. This is the general trigger height for Subpart M.

Explanation: The top edge of a guardrail system must be 42 inches (plus or minus 3 inches) above the walking/working level per OSHA standards.

Explanation: Anchorages used for attachment of personal fall arrest equipment shall be independent and capable of supporting at least 5,000 pounds per employee attached.

Explanation: The top edge of the guardrail must be capable of withstanding a force of at least 200 pounds applied within 2 inches of the top edge, in any outward or downward direction.

Explanation: A personal fall arrest system must limit the maximum arresting force on an employee to 1,800 pounds and must be rigged so that an employee can neither free fall more than 6 feet nor contact any lower level.

Explanation: The PFAS must limit the maximum arresting force on an employee to 1,800 pounds (8 kN) when used with a body harness.

Explanation: Personal fall arrest systems and components subjected to impact loading shall be immediately removed from service and shall not be used again for employee protection unless inspected and determined by a competent person to be undamaged and suitable for reuse.

Explanation: As of January 1, 1998, body belts are not acceptable as part of a personal fall arrest system. Only full body harnesses are permitted.

Explanation: Safety nets shall be installed as close as practicable under the walking/working surface, but in no case more than 30 feet below such level.

Explanation: When the vertical distance from the working level to the net is 5 feet or less, the minimum required horizontal distance of the outer edge of the net from the outermost projection is 8 feet.

Explanation: Employees on a leading edge 6 feet or more above a lower level must be protected by guardrail systems, safety net systems, or personal fall arrest systems.

Explanation: Retraining is required when the employer has reason to believe that any affected employee who has already been trained does not have the understanding and skill required.

Explanation: Covers must be capable of supporting, without failure, at least twice the weight of employees, equipment, and materials that may be imposed on the cover at any one time. Covers must also be secured and marked.

Explanation: All covers must be color coded or marked with the word "HOLE" or "COVER" to provide warning of the hazard.

Explanation: The warning line shall be erected not less than 6 feet from the roof edge.

Explanation: A low-slope roof is defined as a roof having a slope less than or equal to 4 in 12 (vertical to horizontal).

Explanation: The warning line shall consist of a rope, wire, or chain, and supporting stanchions. The line must be rigged and supported so its lowest point, including sag, is no less than 34 inches from the walking/working surface.

Explanation: On steep roofs, employees must be protected by guardrail systems with toeboards, safety net systems, or personal fall arrest systems. Warning line systems and safety monitor systems are not adequate for steep roofs.

Explanation: A controlled access zone is an area designated and clearly marked in which certain work may take place without the use of guardrail, personal fall arrest, or safety net systems, such as overhand bricklaying and leading edge work.

Explanation: When an employer can demonstrate that it is infeasible or creates a greater hazard to use conventional fall protection, a written fall protection plan must be prepared by a qualified person and maintained at the job site.

Explanation: Midrails must be installed at a height midway between the top edge of the guardrail system and the walking/working level.

Explanation: The PFAS must limit maximum deceleration distance an employee travels to 3.5 feet, and must bring the employee to a complete stop.

Explanation: A safety monitoring system alone (without other fall protection) may only be used by employees engaged in roofing work on low-slope roofs.

Explanation: The safety monitor shall be a competent person who can recognize fall hazards and warn employees working in controlled access zones.

Explanation: A PFAS consists of an anchorage, connectors, and a body harness, and may include a lanyard, deceleration device, lifeline, or suitable combinations. Steel-toed boots are PPE but not part of a PFAS.

Explanation: The employer shall provide for prompt rescue of employees in the event of a fall, or shall assure that employees are able to rescue themselves. Suspension trauma can become life-threatening within minutes.

Explanation: Employees working on formwork or reinforcing steel at heights of 6 feet or more above a lower level must be protected by personal fall arrest systems, safety net systems, or positioning device systems.

Explanation: Self-retracting lifelines and lanyards that automatically limit free fall distance to 2 feet or less shall be capable of sustaining a minimum tensile load of 3,000 pounds applied to the device with the lifeline or lanyard in the fully extended position.

Explanation: A leading edge is the edge of a floor, roof, or formwork for a floor or other walking/working surface which changes location as additional floor, roof, decking, or formwork sections are placed, formed, or constructed.

Explanation: Training must include the nature of fall hazards in the work area, correct procedures for erecting, maintaining, disassembling, and inspecting fall protection systems, and the use and operation of fall protection systems.

Explanation: The employer shall verify compliance with the training requirements by preparing a written certification record that includes the name or other identity of the employee, the date of training, and the signature of the trainer or employer.

Explanation: A hole is defined as a gap or void 2 inches or more in its least dimension, in a floor, roof, or other walking/working surface. Holes through which persons can fall must be guarded.

Explanation: This is a steep roof (greater than 4 in 12), so the employee must use guardrail systems with toeboards, safety net systems, or personal fall arrest systems.

Explanation: The top edge of the guardrail system must be 42 inches (plus or minus 3 inches) above the walking/working level.

Explanation: When wire rope is used for top rails, it shall be at least 1/4 inch in diameter and shall be flagged at not more than 6-foot intervals with high-visibility material.

Explanation: Toeboards shall be erected along the edge of the overhead walking/working surface and must be a minimum of 3.5 inches in vertical height from their top edge to the level of the walking/working surface.

Explanation: The warning line must be flagged at not more than 6-foot intervals with high-visibility material, and stanchions must be capable of resisting without tipping over a force of at least 16 pounds.

Explanation: After installation and before being used, safety nets shall be drop-tested with a 400-pound bag of sand 30 inches in diameter dropped from the highest walking/working surface, but not less than 42 inches above.

Explanation: Safety nets shall be inspected at least once a week for wear, damage, and other deterioration. Defective nets shall not be used.

Explanation: Materials, scrap pieces, equipment, and tools which have fallen into the safety net shall be removed as soon as possible from the net and at least before the next work shift.

Explanation: Positioning device systems shall be rigged such that an employee cannot free fall more than 2 feet.

Explanation: Steel erection has special provisions. Connectors working between 15 and 30 feet may use an alternative fall protection method, and those over 30 feet must use conventional fall protection per Subpart R.

Explanation: When guardrails are used at holes, a gate shall be provided, or the removed section shall be replaced when the hole is not in use for the passage of materials.

Explanation: Fall protection systems include guardrail systems, safety net systems, and personal fall arrest systems. Hard hats are head protection, not fall protection.

Explanation: The employer shall provide a training program for each employee who might be exposed to fall hazards. The program shall enable each employee to recognize the hazards of falling and the procedures to minimize these hazards.

Explanation: Protection from falling objects may be provided by erecting toeboards, screens, or guardrail systems; erecting a canopy structure; or barricading the area. Verbal warnings alone are insufficient.

Explanation: When guardrail systems are used at hoisting areas, a chain, gate, or removable guardrail section shall be placed across the access opening between guardrail sections when hoisting operations are not taking place.

Explanation: A PFAS consists of an anchorage, connectors, and a body harness, and may include a lanyard, deceleration device, lifeline, or suitable combinations. Deceleration devices include shock absorbers and self-retracting lifelines.

Explanation: Connectors shall be drop forged, pressed or formed steel, or made of equivalent materials and must have a corrosion-resistant finish and all surfaces and edges must be smooth.

Explanation: D-rings and snaphooks shall have a minimum tensile strength of 5,000 pounds and snaphooks shall be of the locking type.

Explanation: Only locking snaphooks shall be used in personal fall arrest systems. Non-locking snaphooks are prohibited because they can inadvertently open and release.

Explanation: Horizontal lifelines shall be designed, installed, and used under the supervision of a qualified person as part of a complete personal fall arrest system.

Explanation: When used to control access to areas where leading edge and other operations are taking place, the controlled access zone shall be defined by a control line erected not less than 6 feet nor more than 25 feet from the unprotected or leading edge.

Explanation: There is no exception based on employment status or duration of work. All employees on construction sites who are exposed to fall hazards of 6 feet or more must be provided fall protection.

Explanation: Skylights are considered holes in walking/working surfaces. Employees must be protected from falling through skylights by covers or guardrails.

Explanation: When guardrail systems are constructed of wood, posts shall be of at least 2x4 lumber and spaced not more than 8 feet apart on center.

Explanation: Suspension trauma (orthostatic intolerance) can become life-threatening within minutes of a fall arrest. Blood pooling in the legs can cause unconsciousness and death, which is why prompt rescue is critical.

Explanation: Personal fall arrest equipment must be inspected prior to each use for wear, damage, and other deterioration, and defective components shall be removed from service.

Explanation: Anchorages must be capable of supporting at least 5,000 pounds per employee attached, or shall be designed, installed, and used as part of a complete PFAS which maintains a safety factor of at least two, under the supervision of a qualified person.

Explanation: A shock-absorbing lanyard or deceleration device is designed to reduce the fall arrest forces on the body to no more than 1,800 pounds, preventing serious injury during a fall arrest.

Explanation: Total fall clearance distance includes the free fall distance (lanyard length), deceleration distance (up to 3.5 feet), height of the D-ring above feet, and a safety factor. All these must be considered to prevent contact with a lower level.

Explanation: All covers shall be secured when installed so as to prevent accidental displacement by the wind, equipment, or employees.

Explanation: In general industry (29 CFR 1910), the trigger height is 4 feet. However, in construction (29 CFR 1926), the trigger height is 6 feet. This is a commonly tested distinction.

Explanation: Employees performing overhand bricklaying and related work 6 feet or more above lower levels shall be protected by guardrail systems, safety net systems, personal fall arrest systems, or shall work in a controlled access zone.

Explanation: Ladders are covered under Subpart X and have their own fall protection requirements. Portable ladder users are not required to use PFAS under general Subpart M rules; Subpart X applies instead.

Explanation: A fall protection plan is developed and implemented when the employer can demonstrate that it is infeasible or it creates a greater hazard to use conventional fall protection systems.

Explanation: Positioning device systems shall be secured to an anchorage capable of supporting at least twice the potential impact load of an employee fall, or 3,000 pounds, whichever is greater.

Explanation: Falls are consistently the leading cause of death in the construction industry, which is why OSHA devotes significant attention to fall protection in Subpart M.

Explanation: When the vertical distance is more than 10 feet, the safety net shall extend outward at least 13 feet from the outermost projection of the work surface.

Explanation: Since January 1, 1998, body belts are not acceptable as part of a personal fall arrest system. However, body belts may still be used as part of a positioning device system.

Explanation: The employer shall assure that each employee has been trained by a competent person qualified in the subject matter areas covered.

Explanation: Employees less than 6 feet above dangerous equipment must be protected from falling into or onto the dangerous equipment, regardless of the distance of the fall.

Explanation: Fall protection training must cover hazard recognition, procedures for fall protection systems, and use/operation of the systems. CPR and first aid are separate training requirements not part of Subpart M.

Explanation: Lanyards and vertical lifelines shall have a minimum breaking strength of 5,000 pounds.

Explanation: Each employee shall be attached to a separate lifeline when vertical lifelines are used. Sharing vertical lifelines is prohibited because a fall by one worker could jeopardize another.

Explanation: The warning line must be no less than 34 inches and no more than 39 inches from the walking/working surface at its highest point.

Explanation: The safety monitor shall be on the same walking/working surface and within visual sighting distance of the employee being monitored. The monitor must be close enough to communicate orally.

Explanation: OSHA's Focus Four hazards are falls, struck-by, caught-in/between, and electrocution. These four hazards account for the majority of construction fatalities each year.

Explanation: Each employee working on, at, or near wall openings where the outside bottom edge of the wall opening is 6 feet or more above lower levels, and the inside bottom edge is less than 39 inches above the walking/working surface, shall be protected from falling.

Explanation: Subpart M of 29 CFR 1926 covers fall protection requirements for construction. It includes sections 1926.500 through 1926.503.

Explanation: A controlled access zone for leading edge work must be defined by a control line erected not less than 6 feet (1.8 m) nor more than 25 feet (7.7 m) from the leading edge. This zone limits access to authorized employees only.

Explanation: The safety monitor shall have no other responsibilities that could take the monitor's attention from the monitoring function. The monitor must be dedicated solely to watching for fall hazards and warning employees.

Explanation: OSHA's residential construction guidelines allow employers to develop and implement a fall protection plan as an alternative to conventional fall protection when working on residential structures where conventional methods are infeasible or create a greater hazard. The plan must comply with 29 CFR 1926.502(k).

Explanation: A fall protection plan must be prepared by a qualified person and developed specifically for the site. A qualified person is defined as one who, by possession of a recognized degree, certificate, or professional standing, or who by extensive knowledge, training, and experience has successfully demonstrated the ability to solve or resolve problems relating to the subject matter.

Explanation: During precast concrete erection, employees must be protected from falling 6 feet or more to lower levels. There is no special exemption for precast concrete erection from the standard 6-foot trigger height, though employers may use a controlled access zone and safety monitoring system in certain situations.

Explanation: Self-retracting lifelines and lanyards that do not limit free fall distance to 2 feet or less must have components capable of sustaining a minimum tensile load of 3,600 pounds applied to the device with the lifeline or lanyard in the fully extended position.

Explanation: Self-retracting lifelines and lanyards which automatically limit free fall distance to 2 feet (0.61 m) or less shall be capable of sustaining a minimum tensile load of 3,000 pounds (13.3 kN) applied to the device with the lifeline or lanyard in the fully extended position.

Explanation: Horizontal lifelines shall be designed, installed, and used under the supervision of a qualified person, as part of a complete personal fall arrest system, which maintains a safety factor of at least two (2). This means the system must be able to support at least twice the maximum expected load.

Explanation: A full-body harness distributes fall arrest forces over the thighs, pelvis, waist, chest, and shoulders. OSHA requires full-body harnesses (not body belts) as the body support component of personal fall arrest systems because they minimize the risk of injury during fall arrest.

Explanation: A shock-absorbing lanyard (also called a deceleration lanyard) incorporates a deceleration device, typically a woven inner core that tears out progressively during a fall. This controlled tearing reduces the arresting force imposed on the employee to 1,800 pounds or less.

Explanation: Suspension trauma, also called orthostatic intolerance, occurs when an employee hangs motionless in a harness after a fall. Blood pools in the legs, reducing return to the heart, and can cause loss of consciousness and death in as little as a few minutes. OSHA requires employers to provide for prompt rescue.

Explanation: A competent person is defined by OSHA as one who is capable of identifying existing and predictable hazards in the surroundings or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them.

Explanation: OSHA requires fall protection training to cover the nature of fall hazards, the correct procedures for erecting, maintaining, disassembling, and inspecting fall protection systems, and the use and operation of those systems. Personal medical history is not a required training element.

Explanation: Control lines must consist of ropes, wires, tapes, or equivalent materials supported by stanchions, and each line shall be rigged and supported so that its lowest point (including sag) is not less than 39 inches (1.0 m) from the walking/working surface and its highest point is not more than 45 inches (1.3 m) from the walking/working surface.

Explanation: The highest point of a control line for a controlled access zone must not exceed 45 inches (1.3 m) from the walking/working surface. The lowest point must be at least 39 inches. This range ensures the line is visible and effective as a boundary marker.

Explanation: Under 29 CFR 1926 Subpart R (Steel Erection), connectors and employees working in controlled decking zones must be provided with fall protection at heights of 15 feet or more, provided they meet certain training and procedural requirements. This is higher than the general 6-foot trigger height.

Explanation: A controlled decking zone shall not be more than 90 feet (27.4 m) wide. The length of the CDZ is based on the length of the structure but the width cannot exceed 90 feet. The zone must be clearly marked and access limited to authorized personnel.

Explanation: A hole is defined as a gap or void 2 inches (5.1 cm) or more in its least dimension in a floor, roof, or other walking/working surface. Holes through which persons may fall are subject to fall protection requirements. Smaller openings may still pose struck-by hazards from falling objects.

Explanation: Covers for holes in floors, roofs, and other walking/working surfaces must be capable of supporting, without failure, at least twice the weight of employees, equipment, and materials that may be imposed on the cover at any one time.

Explanation: Safety nets must be drop-tested at the jobsite after initial installation, before being used, whenever relocated, after a major repair, and at 6-month intervals if left in one place. The test consists of a 400-pound bag of sand 30 +/- 2 inches in diameter dropped from the highest walking/working surface, at least 42 inches above the net.

Explanation: A warning line system must be erected not less than 6 feet (1.8 m) from the roof edge. The line serves as a visual and physical barrier to alert employees they are approaching an unprotected edge. Employees between the warning line and the roof edge must be protected by a guardrail, personal fall arrest system, or safety net.

Explanation: The warning line must be flagged at not more than 6-foot (1.8 m) intervals with high-visibility material. This ensures the line is clearly visible to employees working on the roof surface so they are aware of the boundary.

Explanation: The fall protection plan must be maintained up to date and a copy must be available at the job site for inspection by OSHA. This ensures compliance officers can verify the plan addresses the specific conditions and hazards present at the work site.

Explanation: On low-slope roofs, employees engaged in roofing work may be protected by a warning line system combined with a safety monitoring system, a warning line system combined with a guardrail, or a warning line system combined with a personal fall arrest system. A warning line or safety monitoring system alone is generally not sufficient.

Explanation: On steep roofs (with a slope greater than 4 in 12), employees must be protected by a guardrail system with toeboards, a safety net system, or a personal fall arrest system. Warning line systems and safety monitoring systems are not permitted on steep roofs because of the increased fall hazard.

Explanation: When leading edge work requires fall protection and the employer can demonstrate that it is infeasible or creates a greater hazard to use conventional fall protection systems, a written fall protection plan conforming to 29 CFR 1926.502(k) must be developed and implemented.

Explanation: During precast concrete erection, if it is infeasible or creates a greater hazard to use conventional fall protection, the employer may use a controlled access zone combined with a safety monitoring system for employees who are at the leading edge. This must comply with the specific requirements of 1926.502(g) and 1926.502(h).

Explanation: Under 29 CFR 1926 Subpart R, each employee engaged in a steel erection activity who is on a walking/working surface with an unprotected side or edge more than 15 feet (4.6 m) above a lower level shall be protected from fall hazards. Connectors may have different requirements but are still protected at 15 feet and above.

Explanation: A fall protection plan does NOT need to be approved by OSHA before work begins. However, it must be site-specific, document why conventional methods are infeasible or create a greater hazard, include alternative measures, and be available at the job site for OSHA inspection.

Explanation: When guardrail systems are used on bridges, the maximum size of each opening in the guardrail system cannot exceed 19 inches (48 cm) in the least dimension. Along the bridge deck edge, the maximum opening size of each guardrail panel shall not exceed 19 inches by 4 feet.

Explanation: Written training certification records must include the name of the employee trained, the date(s) of training, and the signature of the person who conducted the training or the signature of the employer. An employee's Social Security number is not a required element.

Explanation: Retraining is required when changes in the workplace render previous training obsolete, when changes in the types of fall protection systems or equipment render previous training obsolete, or when inadequacies in an employee's knowledge of fall protection systems indicate the employee has not retained the necessary understanding or skill.

Explanation: The rope, wire, or chain used in a warning line system must have a minimum tensile strength of 500 pounds (2.22 kN). It must also be attached to stanchions so that pulling on one section does not cause the line to be pulled to a height of less than 34 inches.

Explanation: When the vertical distance between the walking/working surface and the net is more than 25 feet up to 30 feet, the net must extend outward at least 13 feet from the edge of the walking/working surface. This ensures adequate coverage for the greater fall distance and any horizontal displacement.

Explanation: The dorsal D-ring used for fall arrest attachment must be located at the center of the wearer's back near shoulder blade level. This position ensures the employee is suspended in an upright position after a fall, minimizing the risk of injury and suspension trauma.

Explanation: OSHA requires that employers provide for prompt rescue of employees in the event of a fall, or assure that employees are able to rescue themselves. There is no specific time limit stated in the standard, but 'prompt' is emphasized because suspension trauma can become life-threatening within minutes.

Explanation: Before each use, personal fall arrest equipment must be inspected for wear, damage, deterioration, and proper function. This includes the harness webbing, stitching, D-rings, buckles, lanyards, connectors (snaphooks and carabiners), and anchorage points. Defective components must be removed from service immediately.

Explanation: Under Subpart R (Steel Erection), connectors and employees working in controlled decking zones may work at heights up to 15 feet without conventional fall protection, provided they have completed specific connector training and meet other procedural requirements outlined in the standard.

Explanation: Total fall clearance distance calculations must include: the length of the lanyard (free fall distance, up to 6 feet), the deceleration distance (up to 3.5 feet of shock absorber deployment), the height of the suspended worker and D-ring slide (approximately 6 feet), and a safety factor (typically 2-3 feet). Equipment cost is irrelevant to fall clearance calculations.

Explanation: The employer shall provide a training program for each employee who might be exposed to fall hazards. The training must be provided by a competent person and must enable the employee to recognize the hazards of falling and the procedures to minimize those hazards. The employer bears full responsibility for ensuring this training occurs.