General Contractor License Construction Safety and OSHA 3 — Questions and Answers
Question 1: According to OSHA, what is the minimum safe approach distance for unqualified workers near power lines operating at 50 kV or less?
- 3 feet
- 5 feet
- 10 feet (Correct answer)
- 15 feet
Correct answer: 10 feet
OSHA requires unqualified workers to maintain a minimum distance of 10 feet from power lines energized at 50 kV or less.
Question 2: What does the OSHA acronym 'PPE' stand for in the context of construction safety?
- Personal Protection Equipment
- Personal Protective Equipment (Correct answer)
- Protective Personal Equipment
- Primary Protective Equipment
Correct answer: Personal Protective Equipment
PPE stands for Personal Protective Equipment, which includes hard hats, safety glasses, gloves, and other gear.
Question 3: Under OSHA's Hazard Communication Standard (HazCom), how many sections are required on a Safety Data Sheet (SDS)?
- 8
- 12
- 16 (Correct answer)
- 20
Correct answer: 16
OSHA's GHS-aligned Hazard Communication Standard requires Safety Data Sheets to contain exactly 16 standardized sections.
Question 4: Which class of hard hat provides the highest level of electrical protection?
- Class A
- Class B (Correct answer)
- Class C
- Class E
Correct answer: Class B
Class B hard hats provide the highest electrical protection, rated for up to 20,000 volts.
Question 5: What is the OSHA requirement for guardrail height on construction sites?
- 36 inches
- 39 inches
- 42 inches (Correct answer)
- 48 inches
Correct answer: 42 inches
OSHA requires guardrails on construction sites to be 42 inches (plus or minus 3 inches) above the walking/working surface.
Question 6: How often must fire extinguishers be inspected on a construction site according to OSHA?
- Daily
- Weekly
- Monthly (Correct answer)
- Annually
Correct answer: Monthly
OSHA requires monthly visual inspections of fire extinguishers, with annual maintenance checks.
Question 7: Under the OSHA Lockout/Tagout standard (29 CFR 1910.147), what must be done before servicing equipment with stored energy?
- Notify a supervisor
- Place a warning cone near the equipment
- Isolate and de-energize all energy sources (Correct answer)
- Reduce the energy to its lowest setting
Correct answer: Isolate and de-energize all energy sources
Lockout/Tagout requires all energy sources to be isolated and de-energized before maintenance or servicing begins.
General Contractor License Construction Safety and OSHA 3
According to OSHA, what is the minimum safe approach distance for unqualified workers near power lines operating at 50 kV or less?