OSHA Walking and Working Surfaces 2 — Questions and Answers
Question 1: At what height above a lower level does OSHA require fall protection in general industry walking-working surfaces?
- 4 feet (Correct answer)
- 6 feet
- 10 feet
- 15 feet
Correct answer: 4 feet
General industry (1910 Subpart D) requires fall protection when a walking-working surface is 4 feet or more above a lower level.
Question 2: A guardrail system's top rail must be capable of withstanding a force of at least how many pounds applied downward or outward?
- 150 pounds
- 200 pounds (Correct answer)
- 250 pounds
- 300 pounds
Correct answer: 200 pounds
Top rails must withstand at least 200 pounds of force applied in any downward or outward direction.
Question 3: What is the required height of a standard guardrail top edge above the walking-working surface?
- 30 inches
- 36 inches
- 42 inches, plus or minus 3 inches (Correct answer)
- 48 inches
Correct answer: 42 inches, plus or minus 3 inches
The top edge of a standard guardrail must be 42 inches (plus or minus 3 inches) above the walking-working surface.
Question 4: When a hole exists in a walking-working surface, which method is NOT an acceptable form of protection?
- A cover
- A guardrail system
- A travel restraint system
- Leaving it open with a warning sign only (Correct answer)
Correct answer: Leaving it open with a warning sign only
A warning sign alone does not protect employees; holes must be covered or guarded.
Question 5: Covers over holes in walking-working surfaces must be able to support at least how many times the maximum intended load?
- Two times (Correct answer)
- Three times
- Four times
- Five times
Correct answer: Two times
Hole covers must support at least twice the maximum intended load that may be imposed on them.
Question 6: What is the primary hazard addressed by OSHA's housekeeping requirements for walking-working surfaces?
- Fire
- Slips, trips, and falls (Correct answer)
- Electrical shock
- Chemical exposure
Correct answer: Slips, trips, and falls
Good housekeeping keeps surfaces clean, dry, and orderly to prevent slips, trips, and falls.
Question 7: A midrail on a guardrail system must be installed at what height when there is no wall or parapet at least 21 inches high?
- Midway between the top rail and the surface (Correct answer)
- 12 inches above the surface
- At the same height as the top rail
- 30 inches above the surface
Correct answer: Midway between the top rail and the surface
Midrails must be installed midway between the top edge of the guardrail and the walking-working surface.
OSHA Walking and Working Surfaces 2
At what height above a lower level does OSHA require fall protection in general industry walking-working surfaces?