Question 247Safety & Environmental - QMED70% to pass
A hand portable CO2 fire extinguisher is effective on burning oil only _______________.
AI Explanation
The correct answer is B) if applied promptly.
A hand portable CO2 fire extinguisher is effective on burning oil only if applied promptly. This is because CO2 extinguishers work by displacing oxygen, cutting off the fire's air supply. For oil fires, prompt application of the CO2 is critical to smother the flames before the oil can re-ignite.
The other answer choices are incorrect:
A) Applying CO2 in connection with foam is not necessary for its effectiveness on oil fires.
C) Preventing rekindling is an advantage of CO2, but not the reason for its effectiveness on oil fires.
D) Attempting to extinguish with low velocity fog is not required before using a CO2 extinguisher on an oil fire.
Related Questions
#245 To operate a carbon dioxide extinguisher having the type of head shown in the illustration, you would _______________. Illustration SF-0008 #246 A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. It should be _______________.#248 Which of the listed methods is the most effective to fight a fire on the open deck of a vessel if using a dry chemical type fire extinguisher? #249 Which fire extinguisher is most prone to freezing when stowed in low temperatures? #250 The state of charge of a stored pressure type dry chemical fire extinguisher can be readily determined by _______________.