SafetyQuestion 512 of 700
A standard guardrail system used for fall protection must have a top rail at approximately what height above the walking surface?
a.About 24 inches
b.About 30 inches
c.About 36 inches
d.About 42 inches
Explanation
Cal/OSHA specifies a guardrail top rail at approximately 42 inches (within a few inches tolerance) above the walking or working surface, with a midrail near half that height, and the system must resist a specified outward and downward force. Option d is correct. Lower rails (a, b, c) do not meet the standard and would let a worker pitch over the top.
Law Reference: Cal/OSHA Title 8, Construction Safety OrdersPractice all 700 questions free — no signup required.
Related questions on this topic
- Under Cal/OSHA Construction Safety Orders, when a trench reaches a depth that requires protection, which is the BEST way to protect workers who must enter it?
- A worker is exposed to an unprotected edge on an elevated surface during construction. What is the general Cal/OSHA expectation for fall protection?
- Before workers enter an excavation 5 feet or deeper, which inspection practice does Cal/OSHA require?
- A portable straight ladder is used to access a roof. Cal/OSHA and safe practice require it to extend approximately how far above the upper landing?
- Cutting concrete and masonry generates respirable crystalline silica dust. What is the BEST engineering control to reduce worker exposure?
- Which combination of personal protective equipment (PPE) is MOST appropriate for a laborer operating a gas-powered concrete saw?
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against California CSLB General Building (B) Trade Examination · How we review