Figure 5-37. P-250 pump and eductor rigged for dewatering a flooded compartment.
PICKUP TUBE
REVIEW QUESTIONS
FOAM
CONCENTRATE
Q11.
What dangerous gas is produced when the
WATER
FOAM SOLUTION
P-100 pump is operated?
1.
Chlorine
2.
IN-LINE EDUCTOR
DCf0538
3.
Carbon monoxide
4.
Carbon dioxide
Figure 5-38. AFFF in-line eductor setup.
Q12.
The portable submersible pump is rated to
deliver 180 gallons per minute, against a
maximum head of 50 feet.
EMERGENCY OVERBOARD
DISCHARGE CONNECTIONS
1.
True
2.
False
The emergency overboard discharge connections,
port and starboard, are installed through the hull of each
Q13.
An eductor is a jet-type pump that contains
main transverse subdivision on the damage control
no moving parts.
deck. It is a 4-inch connection, reduced to 2 1/2 inches,
and is normally used during dewatering evolutions.
1.
True
Some smaller ships may use a standard 2 1/2-inch
2.
False
connection that does not require a reducer. These
connections are not normally fitted with valves; instead,
Q14.
What equipment is designed to mix seawater
they are fitted with watertight screw caps over the
and AFFF concentrate to produce an AFFF
inboard ends. Eductor or portable fire-fighting pumps
solution for combating fires?
may be directed overboard through these connections.
1.
Firemain
M a i n t e n a n c e f o r t h e e m e rg e n cy ove r b o a r d
discharge connections will include cleaning,
2.
Submersible pumps
inspecting, and lubrication. Maintenance will be
3.
Portable AFFF in-line eductor
accomplished according to the applicable planned
maintenance.
4.
P-100 pump with AFFF mixer attached
5-21