FWD Firefighting

Question 1

FWD PYRO FLOOD

Answer 1

fresh water spray tank
All valves open
Mater flood valve shut( above sonar cab space door into control room)

Question 2

FWD dry riser

Answer 2

Operated by support party on DCHQs authority
Valve on 2 deck

Question 3

AFF extinguisher

Answer 3

Cream band
Used for carbonaceous fires
Lasts 30 seconds

Question 4

Dry powder extinguisher

Answer 4

Blue band
Used for fuel and hydraulics
Need EBS when in use
Works by taking fuel to ground

Question 5

WET chemical extinguisher

Answer 5

Yellow
Used for galley
Creates expanding foam to suffocate fire

Question 6

CO2 extinguisher

Answer 6

Black band
Used for electrical and electrical cabinets

Question 7

DEMIN extinguisher

Answer 7

Used in RSC as it is non corrosive

Question 8

Hyperbarick

Answer 8

Used for Chalfont operations
Pressurised higher

Question 9

WATER FOG SYSTEM

Answer 9

Supplied from FW spray tank
Alternative is pressurised water tank
Feeds into WSC and pyro locker floods

Question 10

CFHR

Answer 10

supplied from pressurised water tank
Lined up by SCCO
1deck lilo
2 deck middle passageway
3 deck near APC
MR flat aft
AFT escape platform
Because the AFT CFHR run through RC , to avoid unnecessary pressurisation , isolation valve WS623