COSS Walking and Working Surfaces 5

Question 1

Which of the following is NOT a required component of a personal fall arrest system (PFAS)?

Accepted Answer

Safety net as backup

Answer

A PFAS consists of an anchorage, body harness, and connecting means; a safety net is a separate fall protection system, not a required component of a PFAS.

Question 2

After a personal fall arrest system has arrested a fall, what must happen before it is returned to service?

Accepted Answer

Remove it from service and have it inspected by the manufacturer or a qualified person

Answer

Any PFAS that has arrested a fall must be removed from service immediately and inspected by the manufacturer or a qualified person before it can be reused.

Question 3

When must an employer conduct a hazard assessment for walking-working surfaces under 29 CFR 1910.22?

Accepted Answer

Regularly and as needed when conditions change

Answer

OSHA 1910.22(d) requires employers to regularly and as needed inspect walking-working surfaces for hazardous conditions and correct or guard against any hazards found.

Question 4

A worker on a fixed ladder equipped with a personal fall arrest system experiences a free-fall. What is the maximum permissible free-fall distance allowed by OSHA?

Accepted Answer

6 feet

Answer

OSHA 1910.140(c)(2) limits the free-fall distance in a PFAS to 6 feet, and the total fall distance including deceleration must not allow the worker to contact a lower level.

Question 5

Which of the following surfaces would be considered a 'walking-working surface' under the OSHA definition?

Accepted Answer

Any horizontal or vertical surface on or through which an employee walks, works, or gains access

Answer

OSHA 1910.21 broadly defines a walking-working surface as any horizontal or vertical surface on or through which an employee walks, works, or gains access, including floors, roofs, ramps, bridges, and similar surfaces.

COSS - Certified Occupational Safety Specialist Practice Test

COSS - Certified Occupational Safety Specialist Practice Test

COSS Walking and Working Surfaces 5