Engine: Engineering Safety

1. A Electrical equipment where the use of a non-conducting extinguishing agent is of first importance
2. B Ordinary combustible materials where the quenching and cooling effects of quantities of water, or solutions containing large percentages of water, are of first importance
3. C Metals
4. D Flammable liquids, greases, etc., where a blanketing effect is essential

Tip: press A-D to answer