307 Advanced DC
Utilizing eductors as pumps, with the eductor actuated by the output of the P-100 pump
(For dewatering operations involving very low static heads where the difference in level between the liquid surface of the compartment to be dewatered and the point of discharge is 55 feet or less what other method is more efficient?
Douglas fur or yellow pine planks
A shole should be made of what?
Two telescopic, tubular steel sections, fitted with head and base plates and a screw jack, with a drop handle for fine adjustments.
Adjustable steel shores consists of what?
Driller quarter-inch holes at the extreme end of the crack, plug the holes and time permitting, weld a plate over the hole.
How do you prevent further cracking?
Shoring involves cross-axial stress, and should be strengthens with two or more slanting members.
How does "H" shoring work?
The p-100 pump takes suction in the usual way from the flooded compartment, raising the water overboard through the 2 1/2 fire hose; the hose is led to an eductor located in the in the flooded compartment.
How does a combination of a p-100 and eductor work when it comes to unflooding a compartment?
By a fireman or p-100 pump
How is a S-type inductor activated?
Electrical motor driven by 115 volts
How is the Box Fan powered?
2
How many sizes does a Peri-jet inductor come in?
6
How many small jets in the Peri-Jet eductor create the Venturi effect for suction?
7%
How much more effective is a Peri-Jet inductor compared to a S-type inductor?
20,000 lbs at the bottom and 12,000 lbs extended
How much weight can a 3-5 feet metal shoring hold?
20,000 lbs at the bottom and 6,000 lbs extended
How much weight can a 6-11 feet metal shoring hold?
Tighten the cap immediately, no soundings are required to further determine that the compartment is being flooded
If a rush of air escapes around the the threads while the cap is still under control what should you do next?
Damage control assistant and indicate that the compartment has free-surface water or solid flooding
If either air or water is evident, re-secure the cap and report the situation to who?
Sounding and security watch
Under normal conditions, sounding on voids and tanks are made by who?
Portable beams for reinforcing or adding strength to a bulkhead or deck
What are shores?
Panting, buckling, bulging, fracture or splitting of plating and even sagging overheads
What are some signs of a damaged structure on a ship?
I,H,K
What are the 3 types of shoring?
Clamping tool Steel strapping Gloves Chain wrench
What are the components of a banding kit?
Hacksaw Gloves Ball peen hammer Hatchet Tarred Marlin Plugs/wedges of various size Rubber sheet Shears EWARP
What are the components of a pipe patching kit?
Caulking iron Cold chisel Ball peen hammer Hatchet 5lb Maul Tarred oakum Plugs/wedges Hand saw Box patches
What are the components of a plugging kit?
RAM FAN 2000, Box Fan, P-100
What are the three types of desmokers?
Either put something into it or put something over it
What are the two general methods of repairing a hole?
Douglas fur and yellow pine
What are the two kinds of wood shoring?
An eductor
What can be actuated with a P-100 that provides a ready means of pumping liquids which cannot be moved directly with this pump? (Fuel oil, gasoline or mixture of oil and water)
RAM fan 2000
What can be used to desmoke a space with combustibles present?
Ram Fan 2000
What desmoker is firemain driven?
P-100
What desmoker of the three has no electrical parts?
A single beam between an anchor point and a strongback.
What does "I" type shoring consist of?
Center lines or angles
What does "I" type shoring not require?
Electrical submersible pump
What does ESP stand for?
Indicates the compartment below is completely flooded.
What does a trickle of water appearing around the threads of the sounding cap indicate?
Peri-jet inductor
What eductor can be equipped with a foot valve?
Either JP-5 or F-76 fuel( JP-5 mainly because of units entire operating temperature range)
What fuel can the p-100 use?
The space can become flooded
What happens if the Peri-jet inductor loses its Venturi effect?
Firefighters shall have a working knowledge of the fire main piping system and know the measures to be taken after the battle damage to assure water supply for firefighting.
What happens if the ship has a loss of fire main?
It permits more air to escape which permitted more water to enter the damaged space.
What happens if you don't secure the cap?
Maximum angle is 90 degrees. Good for deck,bulkhead, and overhead support, without blocking passageways.
What is "K" type shoring useful for?
7561
What is DC central J-dial?
A rupture with protruding edges located on a curved section of pipe.
What is a Elbow crack?
Useful for use over holes having jagged edges protruding inward. Steel box running in sizes up to 18 inches square and six inches deep.
What is a box patch?
Are fabricated from blanket straps rolled into a cone shape over a piece of line.
What is a cloth patch?
A rupture having protruding edges, ruptures in fittings, mangled pipes, and similar piping damage.
What is a compound crack?
Prefabricated leak stopper of hinged steel plate which can be folded to go through a hole. Use with a pillow or other gasket.
What is a plate Patch?
A section of pipe that has been completely separated.
What is a severed crack?
Flat plates used under the end of a shore to distribute weight or pressure.
What is a shole?
A rupture with no protruding edges located on a straight section of pipe.
What is a simple leak?
A bar or beam used to distribute pressure or to serve as an anchor for a patch(can be all or part of a shore)
What is a strongback?
Uncontrollable flooding spreading from compartment to compartment.
What is progressive flooding?
The process of erecting supports for a structure to prevent metal fatigue, bulging, sagging, or panting of decks and bulkheads.
What is shoring?
It has a foot valve, used in conjunction with a suction hose.
What is something useful about a ESP?
Dewatering Spaces
What is the ESP used for?
20-foot suction lift/100 GPM at 83 PSI
What is the P-100 rated capacity?
De-watering and fire-fighting (mainly firefighting)
What is the P-100 used for?
100 PSI
What is the PSI for a JUBILEE patch?
150 PSI (b)
What is the PSI for a banding patch?
150 PSI (s)
What is the PSI for a soft patch?
150 PSI (e)
What is the PSI for an EWARP patch?
It has no foot valve or strainer(passes small debris)
What is the Peri-jet eductor not equipped with compared to the ESP and S-type inductor?
Using shoring
What is the best way to temporarily support structure until more permanent measures are possible?
"I" type shoring
What is the most effective shoring?
To reduce the area through which water can enter the ship or through which it can pass from one compartment to another.
What is the objective of plugging?
A Commercial Diesel engine driven centrifugal portable pump used for firefighting and dewartering functions on the ship.
What is the p-100?
To restrict, or entirely stop the flow of water entering the hull.
What is the primary method to help stop progressive flooding?
To support weakened structures
What is the primary purpose of shoring?
To check whether a compartment is flooded
What is the purpose of sounding?
3200 cubic feet/min
What is the rated capacity of a Box Fan?
2000 cubic feet/min and 40-180 PSI
What is the rated capacity of the RAM fan 2000?
18 inches
What is the recommended size for a plate patch?
To confine and remove water that has entered, or is entering the ship
What is the secondary method to progressive flooding?
Wooden plugs
What is the simplest method to repair small holes?
2 (1/2) inch suction and 4 inch discharge
What is the suction and discharge of a Peri-jet inductor?
1 (1/2) inch suction and a 2 (1/2) inch discharge
What is the suction and discharge of a S-type Eductor?
Has a foot valve and strainer
What is unique about an S-type inductor?
Water indicating paste
What is used on the sounding cap to clearly recognize water levels inside the tank?
Soft wood especially in holes not over 3x2 inches
What material of plugs are effective in plugging?
Dewatering through a hatch while the space is still flooding.
What other actions may be taken during progressive flooding?
Setting boundaries
What places an essential role in preventing progressive flooding
440 volts of power
What powers an ESP?
Star strainer
What prevents debris from entering a ESP?
A careful shoring watch
What should be maintained on any system of shoring, to attend to any loosening immediately?
Flammable Liquids/ Combustible Liquids
What should not be pumped through an ESP?
One inch or more inches in thickness and from 8-12 inches wide
What should the thickness and size of a shole be?
18 inches square and six inches deep
What sizes does a box patch come in?
20 feet suction lift
What's the maximum suction lift for an ESP?
180 gallons per minute with a 50 ft discharge head
What's the rated capacity of a ESP?
2 (1/2) Inch suction and a 2 (1/2) Inch discharge
What's the suction and discharge of a ESP?
Scraping the surface smooth and applying a patch of sheet packing, back by a shole held in place with shoring.
When a leak is in a flat surface away from frames and other interference, it can be generally stopped by doing what?
From any available supply
Where does the p-100 get the water to actuate the eductor?
Scene leader/team leader
Who makes the assessment to determine proper action during progressive flooding?
All personnel
Who should know where and how to sound all compartments in their own and adjacent areas?
Scene leader
Who will inform the shoring team what needs to be shored where they arrive on scene?
Can be readily cut, shaped, and trimmed to meeting varying needs of repair parties and also absorb water
Why are wooden shores useful?
Carbon Monoxide is an associated gas with this pump which is harmful to the user.
Why must P-100 be operated in a well-ventilated area?
Unpaired soft wood absorbs more water and grips better.
Why should plugs not be painted?
They would transmit the shock of an explosion.
Why should shores never be placed in position before damage occurs?
Battle damage, heavy seas, collision, or excessive weight
Why would structures be weakened on a ship?
A crack in a steal plate
A common type of leak is is caused by what?
Damage control functions and limited operations of ordinates and aircraft facilities
Casualty power is also designed to provide a source of temporary power for?
3
For accuracy of water levels, sounding should be done how many times?
Metal shores
In general, the rules for using wooden shores also apply to what
Slowing back off the plug or cap
In preparing for a sounding what should you do first?
The casualty power system
In the situation of loss of electrical power ,What is arranged to provide temporary transmission of vital power to damaged areas?
The material condition and damage control procedures
In view of the possibility of damage resulting from battle, the firefighter should know what to offset the effect of damage to the fire main?
Lightweight cloth
It is best to wrap plugs with what to help it grip better?
3-5 feet or 6-11 feet
Length of shoring comes in what?
The original attack team or by a designated reflash watch and overhaul men
Overhaul may be accomplished by who?
Further flooding or even advance the the flooding boundary back to the area of damage.
Quick action when sealing leaks and cracks can prevent what?
Strongbacks and short shores
Scraps of wood obtained when cutting shores should be retained for use as what?
Any distortion of the structure would make them useless
Shores should never be be cut to length in anticipation of damage because of why?
Service for sustaining ship control, maintenance of systems, communications,detections, interior communications and lighting
The casualty power system provides temporary power to what areas?
30
The length of a shore should never be more then ____ times its minimum thickness
More
The shorter a wooden or steel shore in relation to its minimum thickness, the _______ weight it will support
