CIH OSHA 3 — Questions and Answers
Question 1: Under OSHA's confined space entry standard (29 CFR 1910.146), which condition does NOT automatically classify a space as a permit-required confined space?
- Contains a serious safety or health hazard
- Has limited means of entry or exit
- Is not designed for continuous employee occupancy (Correct answer)
- Contains a hazardous atmosphere
Correct answer: Is not designed for continuous employee occupancy
Limited entry/exit and not designed for continuous occupancy are characteristics of confined spaces, but alone they do not make a space permit-required; an actual hazard is needed.
Question 2: OSHA's walking-working surfaces standard requires employers to ensure floor load ratings are conspicuously posted and that loads placed on floors do not exceed:
- The design load minus a 25% safety factor
- The maximum safe load indicated (Correct answer)
- 150% of rated capacity during temporary operations
- Twice the rated capacity with engineering approval
Correct answer: The maximum safe load indicated
29 CFR 1910.22 requires that floor loads not exceed the maximum safe load shown on posted load ratings.
Question 3: Under the OSHA PSM standard, a 'catastrophic release' is defined as a major uncontrolled emission of a highly hazardous chemical that presents immediate danger to:
- Workers only
- The environment only
- Employees and the public (Correct answer)
- Neighboring facilities only
Correct answer: Employees and the public
PSM defines catastrophic release as presenting an immediate danger to employees and the public due to potential toxic, fire, or explosion consequences.
Question 4: Which OSHA standard specifically governs occupational exposure to hexavalent chromium Cr(VI) in general industry?
- 29 CFR 1910.1000
- 29 CFR 1910.1026 (Correct answer)
- 29 CFR 1910.1025
- 29 CFR 1910.1048
Correct answer: 29 CFR 1910.1026
29 CFR 1910.1026 is the specific OSHA standard for hexavalent chromium in general industry.
Question 5: Under OSHA's machine guarding standard (29 CFR 1910.212), which type of guard is attached directly to the machine and provides a barrier that prevents access to the danger zone?
- Interlocked guard
- Fixed guard (Correct answer)
- Adjustable guard
- Self-adjusting guard
Correct answer: Fixed guard
A fixed guard is a permanent barrier fastened to the machine that requires tools to remove, providing constant protection.
Question 6: OSHA's fall protection standard for construction (29 CFR 1926.502) requires personal fall arrest systems to limit maximum arresting force to:
- 900 lbs (4 kN)
- 1,800 lbs (8 kN) (Correct answer)
- 2,250 lbs (10 kN)
- 3,600 lbs (16 kN)
Correct answer: 1,800 lbs (8 kN)
OSHA limits maximum arresting force to 1,800 lbs (8 kN) to prevent internal injury during a fall arrest.
Question 7: Under OSHA's ionizing radiation standard (29 CFR 1910.1096), the whole-body occupational dose limit for a declared pregnant worker is:
- 1.25 rem (12.5 mSv) per quarter
- 0.5 rem (5 mSv) for the entire gestation period (Correct answer)
- 5 rem (50 mSv) per year
- 3 rem (30 mSv) per year
Correct answer: 0.5 rem (5 mSv) for the entire gestation period
OSHA limits embryo/fetus exposure to 0.5 rem (5 mSv) over the gestation period to protect fetal development.
CIH OSHA 3
Under OSHA's confined space entry standard (29 CFR 1910.146), which condition does NOT automatically classify a space as a permit-required confined space?