STSC Safety Regulations and Standards 4 — Questions and Answers
Question 1: Under OSHA's multi-employer worksite policy, which employer bears primary responsibility for hazards they create, even if other employers' workers are exposed?
- The exposing employer
- The creating employer (Correct answer)
- The controlling employer
- The correcting employer
Correct answer: The creating employer
The creating employer is responsible for hazards they create regardless of which workers are exposed to them.
Question 2: OSHA's Process Safety Management (PSM) standard (29 CFR 1910.119) applies to construction sites when highly hazardous chemicals exceed the threshold quantity. Which document must be completed before beginning covered processes?
- Job Hazard Analysis
- Process Hazard Analysis (Correct answer)
- Site Safety Plan
- Chemical Hygiene Plan
Correct answer: Process Hazard Analysis
A Process Hazard Analysis (PHA) is required before operating processes covered under OSHA's PSM standard.
Question 3: Which OSHA standard specifically covers excavation and trenching safety for construction workers?
- 29 CFR 1926.100
- 29 CFR 1926.500
- 29 CFR 1926.650 (Correct answer)
- 29 CFR 1926.400
Correct answer: 29 CFR 1926.650
29 CFR 1926.650 through 1926.652 (Subpart P) covers excavation and trenching safety requirements.
Question 4: When must a competent person inspect an excavation on a construction site?
- Weekly, regardless of conditions
- Daily before work begins and after any hazard-increasing event (Correct answer)
- Only after rainstorms
- Before each new crew shift, but not more than twice per day
Correct answer: Daily before work begins and after any hazard-increasing event
OSHA requires a competent person to inspect excavations daily before work begins and after any event that could increase hazards.
Question 5: Which ANSI/ISEA standard governs the performance requirements for high-visibility safety apparel used on construction sites?
- ANSI/ISEA 105
- ANSI/ISEA 107 (Correct answer)
- ANSI/ISEA 138
- ANSI Z89.1
Correct answer: ANSI/ISEA 107
ANSI/ISEA 107 establishes performance requirements for high-visibility safety apparel and headwear.
Question 6: Under the OSHA Hazard Communication Standard (HazCom 2012), Safety Data Sheets must include how many sections?
- 10
- 12
- 16 (Correct answer)
- 18
Correct answer: 16
GHS-aligned SDSs must contain exactly 16 sections covering hazard identification, composition, first aid, and more.
Question 7: A construction supervisor notices a subcontractor using a ladder that violates OSHA standards. Under the multi-employer worksite doctrine, what obligation does the general contractor supervisor have?
- No obligation — the subcontractor is solely responsible
- Notify OSHA immediately without attempting correction
- Take reasonable steps to correct or require correction of the hazard (Correct answer)
- Document the violation but allow work to continue
Correct answer: Take reasonable steps to correct or require correction of the hazard
As a controlling employer, the general contractor must exercise reasonable care to detect and correct violations by subcontractors.
STSC Safety Regulations and Standards 4
Under OSHA's multi-employer worksite policy, which employer bears primary responsibility for hazards they create, even if other employers' workers are exposed?