COSS - Certified Occupational Safety Specialist Walking and Working Surfaces Questions and Answers

Question 1

According to OSHA 29 CFR 1910 Subpart D, at what minimum height above a lower level must fall protection be provided on a walking-working surface with an unprotected side or edge?

Accepted Answer

4 feet

Answer

6 feet

Answer

5 feet

Answer

8 feet

Question 2

An employee is using a portable extension ladder to access a roof landing. To comply with OSHA 1910.23, the side rails of the ladder must extend at least how far above the upper landing surface?

Accepted Answer

3 feet

Answer

1 foot

Answer

2 feet

Answer

4 feet

Question 3

A safety specialist is inspecting a newly installed fixed industrial stairway. Which of the following design specifications meets the requirements of OSHA 1910.25 for a standard stairway?

Accepted Answer

An installation angle between 30 and 50 degrees from the horizontal.

Answer

A minimum tread width of 20 inches between vertical barriers.

Answer

An installation angle of 60 degrees from the horizontal.

Answer

A maximum riser height of 10 inches.

Question 4

When installing a new guardrail system to protect an open-sided floor, what is the required nominal height for the top rail, as measured from the walking-working surface, according to OSHA 1910.29?

Accepted Answer

42 inches, plus or minus 3 inches

Answer

36 inches, plus or minus 3 inches

Answer

39 inches, plus or minus 3 inches

Answer

45 inches, plus or minus 3 inches

Question 5

A company requires employees to work near an unprotected roof edge and provides them with personal fall arrest systems (PFAS). Before an employee is allowed to perform this work, what does OSHA 1910.30 require the employer to do?

Accepted Answer

Ensure a qualified person trains each employee on fall hazards and the proper use of the PFAS.

Answer

Ensure each employee reads the PFAS manufacturer's user manual.

Answer

Have a designated safety monitor observe the work at all times.

Answer

Certify that each employee has at least one year of experience working at heights.

Question 6

Which of the following would be defined as a 'hole' under OSHA's Walking-Working Surfaces standard (1910.21), thereby requiring a cover or other protection?

Accepted Answer

A 3-inch diameter pipe opening in a concrete floor.

Answer

A 1-inch gap between floorboards.

Answer

An open-sided platform 3 feet above the ground.

Answer

A loading dock edge.