A primary hazard when a cryogenic vessel is mishandled is which of the following?

A primary hazard when a cryogenic vessel is mishandled is which of the following?

• A. Release causing frostbite and asphyxiation
• B. Immediate chemical burn
• C. Radiation exposure
• D. Magnetic interference

Answer: (A)

Extreme cold and an oxygen-deficient atmosphere are the main hazards when a cryogenic vessel releases contents. The liquid and its vapor are incredibly cold, so contact with skin or eyes can cause frostbite in seconds. At the same time, the cold gas tends to push aside the surrounding air; in enclosed or poorly ventilated spaces, this can create a low-oxygen environment, leading to asphyxiation. The other options don’t fit because cryogens aren’t primarily a chemical burn source, they don’t emit harmful radiation, and they don’t cause magnetic interference. The dominant risks come from the extreme cold and the potential for oxygen displacement.

Extreme cold and an oxygen-deficient atmosphere are the main hazards when a cryogenic vessel releases contents. The liquid and its vapor are incredibly cold, so contact with skin or eyes can cause frostbite in seconds. At the same time, the cold gas tends to push aside the surrounding air; in enclosed or poorly ventilated spaces, this can create a low-oxygen environment, leading to asphyxiation. The other options don’t fit because cryogens aren’t primarily a chemical burn source, they don’t emit harmful radiation, and they don’t cause magnetic interference. The dominant risks come from the extreme cold and the potential for oxygen displacement.