CLC Job Site Safety & Risk Management 2 — Questions and Answers
Question 1: When must a lead carpenter conduct a job hazard analysis (JHA) on a residential remodel project?
- Only after an injury has occurred
- Before work begins on any new phase or task (Correct answer)
- Once per week regardless of task changes
- Only when OSHA inspectors are expected
Correct answer: Before work begins on any new phase or task
A JHA should be performed before starting any new phase or task to identify and mitigate hazards proactively.
Question 2: A carpenter notices a coworker using a circular saw without the blade guard. The correct first action is to:
- Report it to OSHA immediately
- Stop the work and address the hazard directly with the coworker (Correct answer)
- Document it in the daily log and continue working
- Wait until the task is finished to avoid disrupting productivity
Correct answer: Stop the work and address the hazard directly with the coworker
Immediate intervention is required because missing blade guards create an imminent danger that must be corrected before work continues.
Question 3: What is the OSHA-required minimum distance a worker must maintain from the edge of an unguarded floor opening more than 6 feet above a lower level?
- 2 feet
- 4 feet
- 6 feet
- There is no set distance — fall protection must be installed (Correct answer)
Correct answer: There is no set distance — fall protection must be installed
OSHA 29 CFR 1926.502 requires fall protection systems at or before the edge, not a setback distance.
Question 4: Which document must be on-site and accessible to workers before any hazardous chemical is used on a job site?
- Material purchase order
- Safety Data Sheet (SDS) (Correct answer)
- OSHA 300 Log
- Contractor license
Correct answer: Safety Data Sheet (SDS)
OSHA's Hazard Communication Standard (HazCom) requires Safety Data Sheets to be readily accessible to employees for every hazardous chemical on site.
Question 5: A subcontractor on your site is using an extension cord with a damaged outer jacket exposing bare wires. As lead carpenter you should:
- Cover the damage with electrical tape and continue
- Tag and remove the cord from service immediately (Correct answer)
- Allow use only in dry conditions
- Limit use to low-voltage tools only
Correct answer: Tag and remove the cord from service immediately
Damaged electrical cords must be taken out of service immediately because exposed conductors create serious shock and fire hazards.
Question 6: Under OSHA's Lockout/Tagout standard, who is authorized to remove a lockout device?
- Any crew member in an emergency
- Only the worker who installed the lock (Correct answer)
- The lead carpenter or foreman
- Any licensed electrician on site
Correct answer: Only the worker who installed the lock
OSHA 29 CFR 1910.147 specifies that only the employee who applied the lockout device may remove it, except under specific authorized procedures.
Question 7: What is the maximum angle (degrees from horizontal) at which a straight ladder must be positioned to be considered safe?
- 60°
- 70°
- 75° (Correct answer)
- 80°
Correct answer: 75°
OSHA requires straight ladders to be set at a 75° angle, achieved by using the 4:1 rule (1 foot out for every 4 feet of height).
CLC Job Site Safety & Risk Management 2
When must a lead carpenter conduct a job hazard analysis (JHA) on a residential remodel project?