A12.
The CO2 flooding system is always used in
REVIEW ANSWERS
spaces that are normally occupied by
A1.
The firemain system is used primarily to
supply seawater to what other systems?
system should only be used in spaces that
(4) Fireplug and sprinkling systems
are normally NOT occupied by personnel.
A2.
There is a total of how many basic types of
A13.
When using the CO2 hose-and-reel system,
firemain systems designed for use on large
you should always direct the CO2 discharged
Navy ships? (3) 3
from the hose toward the base of the fire.
A3.
What type of firemain system is separated
(1) True
both vertically and athwartship? (4) Vertical
A14.
Before operating an installed CO2 system,
offset loop
you should ensure all openings in the
compartment are closed and the ventilation
A4.
Sprinkler systems are used for emergency
system for the space is secured. (1) True
A15.
Halon systems are used to extinguish fires
handling areas. (1) True
that are beyond the capacity of fire
extinguishing equipment, and where
A5.
What are the two basic types of hydraulically
abandonment of the space is necessary.
controlled sprinkler systems used on naval
(1) True
ships? (3)The firemain-operated dry type
and the firemain-operated wet type.
A16.
The full discharge of the gas from a Halon
1301 system into a protected space is
A6.
What Navy rating maintains the magazine
completed in how many seconds? (1) 10
sprinkler systems? (1) Gunner's Mate
seconds
A7.
What type of pump for the installed AFFF
A17.
What type of system normally supplements
system is provided in capacities of 12, 27, and
Halon 1301 systems in machinery spaces and
60 gpm? (2) Single-speed injection pump
pump rooms? (1) AFFF. An AFFF
A8.
AFFF is stored in storage/transfer tanks
sprinkling system normally supplements
having a capacity of up to 3,500 gallons and
Halon 1301 systems in machinery spaces
in service tanks that vary in capacity from
and pump rooms.
50 gallons to what maximum size?
A18.
Aqueous potassium carbonate (APC)
(2) 2,000 gallons
fire-extinguishing systems are installed in
A9.
What type of seawater pressure-operated
naval ships to provide protection for deep-fat
control valve allows the flow of
and doughnut fryers and their exhaust
AFFF/seawater solution through the
systems. (1) True
distribution system or controls seawater flow
A19.
Each APC system includes one or two
on flight deck AFFF injection systems?
cylinders filled with a solution of potassium
(3) Powertrol
carbonate in water pressurized with what type
A10.
What type of seawater pressure-operated
control valve allows the flow of seawater
A20.
The APC system has a total of how many
from the firemain system to be mixed with
manual modes of operation? (3) Three
AFFF concentrate? (1) Hycheck
manual backup modes of operation are
provided at the cylinder assembly, the
A11.
pressure release control box, and the
the correct amount of AFFF concentrate with
remote manual control box.
seawater? (4) Balancing valve
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