Pertaining to fire suppression systems, which of the following is true?
A.
Halon (or halon substitute) is commonly used because it interferes with the chemical combustion of the elements within a fire.
B.
Gas masks provide effective protection against use of CO2 systems.
C.
CO2 systems suppress the oxygen supply required to sustain a fire.
D.
Soda acid is an effective fire suppression method for class C (electrical) fires.
Explanation:
CO2 systems are effective because they suppress the oxygen supply
required to sustain the fire.