BOC Safety Procedures 5 — Questions and Answers
Question 1: Under the OSHA Hazard Communication Standard, how many sections must a Safety Data Sheet (SDS) contain?
- 8
- 16 (Correct answer)
- 20
- 12
Correct answer: 16
GHS-aligned SDSs follow a standardized 16-section format.
Question 2: Which SDS section should a building operator consult for the correct type of gloves and respirator when handling a cooling tower biocide?
- Section 14, Transport Information
- Section 2, Hazard Identification
- Section 11, Toxicological Information
- Section 8, Exposure Controls/Personal Protection (Correct answer)
Correct answer: Section 8, Exposure Controls/Personal Protection
Section 8 lists exposure limits, engineering controls, and required PPE.
Question 3: What should a building operator do first upon discovering suspected asbestos-containing pipe insulation that is damaged?
- Remove it with a shop vacuum
- Leave it undisturbed, restrict access, and report it for evaluation (Correct answer)
- Wet it and sweep it into a trash bag
- Wrap it with duct tape and continue work
Correct answer: Leave it undisturbed, restrict access, and report it for evaluation
Disturbing suspected ACM can release fibers, so it must be isolated and assessed by qualified personnel.
Question 4: Under OSHA's general industry standard, at what minimum height must a fixed ladder be equipped with a fall protection system?
- 6 feet
- 24 feet (Correct answer)
- 10 feet
- 50 feet
Correct answer: 24 feet
OSHA 1910.28 requires fixed ladders extending more than 24 feet to have a personal fall arrest or ladder safety system.
Question 5: When setting up a portable extension ladder to access a roof, what is the recommended angle ratio?
- Base flush against the wall
- 1 foot out for every 2 feet of height
- 1 foot out for every 8 feet of height
- 1 foot out for every 4 feet of height (Correct answer)
Correct answer: 1 foot out for every 4 feet of height
The 4-to-1 rule places the ladder at about 75 degrees for stability.
Question 6: Which practice best reduces the risk of Legionella growth in a building's cooling tower?
- Maintaining a water management program with biocide treatment and regular cleaning (Correct answer)
- Raising the tower basin temperature to 95°F
- Reducing blowdown to conserve chemicals
- Turning off the drift eliminators
Correct answer: Maintaining a water management program with biocide treatment and regular cleaning
ASHRAE 188 water management programs control Legionella through treatment, monitoring, and cleaning.
Question 7: Hearing conservation programs are required by OSHA when employee noise exposure reaches what 8-hour time-weighted average?
- 85 dBA (Correct answer)
- 70 dBA
- 90 dBA
- 100 dBA
Correct answer: 85 dBA
OSHA's action level of 85 dBA TWA triggers a hearing conservation program, including audiometric testing.
BOC Safety Procedures 5
Under the OSHA Hazard Communication Standard, how many sections must a Safety Data Sheet (SDS) contain?