Question 781 Deck Safety
70% to passAs an extinguishing agent, foam _______________.
A
should be directed at the base of the fire
B
extinguishes by cooling oil fires below ignition temperature
C
is most effective on burning gases which are flowing
D
conducts electricity
AI Explanation
The correct answer is D) foam conducts electricity. Foam is an extinguishing agent that works by creating a blanket over the fire, cutting off the fire's oxygen supply. However, foam is an electrical conductor, so it should not be used on electrical fires as it can transmit the electrical current. This makes foam an ineffective and potentially dangerous choice for extinguishing electrical fires. The other answer choices describe other properties of foam that are correct, but do not address its conductivity, which is the key factor that makes it the wrong choice for electrical fires.
Related Questions
Q705:Fire extinguishing agents used on Class C fires must be _______________.
Q2002:Stability is determined principally by the location of the point of application ...
Q1786:Your vessel has run aground and is touching bottom for the first one-quarter of ...
Q1884:Which statement concerning solid floors is TRUE?
Q827:Carbon dioxide as a firefighting agent has which advantage over other agents? ...
Ready to test your knowledge?
Take a Deck Safety Practice ExamOfficial Resources
Pass Your Coast Guard Licensing Exams!
Study offline, track your progress, and simulate real exams with the Coast Guard Exams app