Engine 2014: Engineering Safety

1. A the oxygen and explosion meter when it is used for detection of flare gases
2. B the self contained breathing apparatus, when used as protection from gas leaking from a refrigeration unit
3. C the boots and gloves that are made of rubber or electrically non- conductive material, if used when repairing electrical  equipment
4. D the lifeline, if used by personnel entering a compartment which might be deficient of oxygen

Tip: press A-D to answer