STCW Basic Firefighting chapter 4(Questions & Answers 100% Correct)

STCW Basic Firefighting chapter
4(Questions & Answers 100% Correct)
portable stored pressure water extinguishers are useful for extinguishing what class of
fires? - ANSWERSclass A fires only

carbon monoxide extinguishers are effective in extinguishing which classes of fire, and
at what range? - ANSWERSclasses B and C; 3-5 ft

how do dry chemical extinguishers extinguish fire? - ANSWERSinterrupting the chemic
chain reaction

what is the total range time of hand carried dry chemical extingushers - ANSWERS8-25
seconds

who is responsible for the servicing of portable extinguishers onboard ship? -
ANSWERSvessel owner or operator what is the discharge time of AFFF portable
extinguishers? - ANSWERS55 seconds

what type of extinguishers can be used for fire prevention? - ANSWERSAFFF


when referring to portable extinguishers, what does PASS stand for? - ANSWERSpull
the pin, aim, squeeze, and sweep

what is the first thing you should do with a portable extinguisher when you remove it
from its bracket? - ANSWERSvisual inspection test where is aqueous film forming foam
wheeled semi-portable units found? - ANSWERSmachinery spaces