Question 821Deck Safety70% to pass
Which statement is TRUE concerning carbon dioxide?
AI Explanation
The correct answer is D) All of the above are true.
1) Carbon dioxide (CO2) is used on Class B (flammable liquids) and Class C (energized electrical equipment) fires because it is a non-conductive gas that effectively smothers the fire by displacing oxygen.
2) Carbon dioxide is heavier than air, so it settles and remains close to the fire source, continuing to smother the flames.
3) The other options are incorrect because they only state a single true fact about carbon dioxide, whereas the correct answer encompasses all three characteristics.
Related Questions
#819 You are having a Coast Guard inspection. All carbon dioxide fire extinguishers aboard will be _______________.#820 Which statement is TRUE concerning carbon dioxide? #822 What is NOT a characteristic of carbon dioxide fire-extinguishing agents? #823 Which portable fire extinguisher should be used on a class C fire on board a vessel? #824 When discharging a portable CO2 fire extinguisher, you should NOT hold the horn of the extinguisher because the horn _______________.