CCM Construction Safety and Risk 3 — Questions and Answers
Question 1: The OSHA 300 Log must be posted in the workplace annually during which period?
- January 1 – March 31
- February 1 – April 30 (Correct answer)
- March 1 – May 31
- July 1 – September 30
Correct answer: February 1 – April 30
OSHA requires the Form 300A summary to be posted from February 1 through April 30 each year.
Question 2: What is the maximum allowable slope for Type C soil in an excavation without additional shoring under OSHA standards?
- 3/4:1 (H:V)
- 1:1 (H:V)
- 1½:1 (H:V) (Correct answer)
- 2:1 (H:V)
Correct answer: 1½:1 (H:V)
OSHA Appendix B to 29 CFR 1926 Subpart P requires a 1½:1 (horizontal to vertical) slope for Type C, the least stable soil.
Question 3: Which tool is most useful for proactively identifying safety risks early in a construction project's design phase?
- Punch list review
- Pre-task planning form
- Constructability / HAZID review (Correct answer)
- Incident rate benchmarking
Correct answer: Constructability / HAZID review
A HAZID (Hazard Identification) or constructability review during design identifies and eliminates risks before construction begins.
Question 4: When a subcontractor's employee is injured on a general contractor's site, OSHA's multi-employer citation policy allows citations to be issued to:
- The subcontractor only, as the employer of record
- The general contractor only, as the site controller
- Both the creating/controlling employer and the exposing employer (Correct answer)
- The owner, as the ultimate responsible party
Correct answer: Both the creating/controlling employer and the exposing employer
OSHA's multi-employer worksite policy allows citations to the employer who created the hazard and the employer whose workers are exposed to it.
Question 5: A fall protection plan is required as an alternative to conventional fall protection systems only when:
- The work is performed below 6 feet
- Conventional systems would create a greater hazard or are infeasible (Correct answer)
- Workers are trained and certified in fall arrest
- The owner provides written approval
Correct answer: Conventional systems would create a greater hazard or are infeasible
OSHA allows a written fall protection plan only when an employer can demonstrate that conventional fall protection is infeasible or creates a greater hazard.
Question 6: In a risk matrix, a hazard rated as 'high probability / high severity' should receive which priority classification?
- Acceptable risk — monitor only
- Low priority — schedule for next quarter
- Intolerable — immediate action required (Correct answer)
- Medium priority — plan controls within 30 days
Correct answer: Intolerable — immediate action required
High probability combined with high severity places a risk in the intolerable zone, requiring immediate corrective action.
Question 7: Which construction activity triggers the OSHA Process Safety Management (PSM) standard at a construction site?
- Welding within 35 feet of any structure
- Handling highly hazardous chemicals at or above threshold quantities (Correct answer)
- Operating cranes near overhead power lines
- Excavating near buried utility lines
Correct answer: Handling highly hazardous chemicals at or above threshold quantities
PSM (29 CFR 1910.119) applies when highly hazardous chemicals are present at or above OSHA's listed threshold quantities on a site.
CCM Construction Safety and Risk 3
The OSHA 300 Log must be posted in the workplace annually during which period?