Engine 2014: Engineering Safety

1. A there is no possible ethylene oxide concentration in air which is too lean to burn
2. B there is no possible ethylene oxide concentration in air which is too rich to burn
3. C an ethylene oxide spill always results in an explosion
4. D a 2.0% concentration of ethylene oxide in air would give a  reading of 2.0% on a combustible gas indicator

Tip: press A-D to answer