[Damage Control] Flashcards
What percentage of water-influx reduction is considered to be success?
50%
How should you never place a shore?
Below the point of compression (results in bowing)
What is the most rapid and accurate way to measure shores for cutting?
Adjustable shore measuring batten
What pump unit is a commercial diesel-driven portable pump designed for firefighting, dewatering, and many utility functions?
P-100
How long should the P-100 idle before stopping?
2 minutes
What two things are key to damage control success?
Teamwork and preparation
What is used to cover larger holes with sections of improvised or prefabricated material?
Patching
How long should the P-100 be flushed with fresh water after used with seawater?
3-5 minutes to prevent corrosion
What do the safety and life of a ship depend on?
Watertight integrity
How many gallons of fuel can the P-100 hold, and for how long can it operate?
1.45 gallons and 2.75 hours
What type of plug performs best and why?
Plugs made of bare, soft wood because they swell
What is a modification of a commercial hose clamp, that
consists of a piece of sheet metal rolled into a cylinder
shaped at the gap into flanges?
Jubilee patch
How should wedges be driven in?
Uniformly from both sides
Which type of pipe repair can repair and restore most water, fuel, and gas lines within 30 minutes?
Metallic pipe kit
The length of a wedge cannot be more than ___ times the minimum thickness?
6
What is a plank or plate with pockets chiseled out for a rivet head?
Shole
What should be used in the absence of a shoring batten?
Carpenter’s square
What is the criteria for placement of the emergency generator?
1) Always in a separate compartment from the main generators
2) Above the waterline
What should be done to the P-100 after flushing it?
Silicone compound should be sprayed on internals
What are the two phases of shoring?
1) Stopping or reducing the inflow of water
2) Bracing or shoring damaged or weakened members of the ship’s structure by transferring and spreading the pressure to other portions of the ship
How many drops per minute should the packing screw allow on the P-100?
5-60 drops per minute
How is the P-100 cooled?
Air-cooled
What is the variation of the plate patch that is circular, 18 inches or less in diameter, and cut in two?
Hinged plate patch
What are the three steps to shoring?
1) Clear decks of wreckage
2) Speed
3) Preparation
What is a technique used for filling small holes with suitable material?
Plugging
How do you prevent a crack from cracking any further?
Drilling a small hole at each end of the crack
What type of patch involves using a galvanized bucket?
Bucket patch
What two factors affect the amount of water entering a space?
Size and depth of hole
What is shoring?
Wooden or metal beams propped up against a structure
What is the ultimate aim when plugging a leak?
To stop the leak permanently
What are the three soft patch procedures?
1) Opening is plugged with soft wood plugs or wedges
2) Trim plugs and wedges flush with outside of pipe
3) Wrap damaged area with rubber sheeting and back it with light sheet metal held by bindings
What is a long bolt having the head end shaped so that the bolt can be hooked to the plating through which it has been inserted, and what three types are there?
1) Hook bolt
2) T, L, and J
What is a bar or beam of wood or metal used to distribute pressure or to serve as an anchor for a patch?
Strongback
How should shores be cut to allow for wedging?
1/2 inch shorter than the measured length
What are three general items that can be used for patching?
Pillows, mattresses, and blankets
Where are shoring tools stored on the ship?
Damage control locker
How many ___ GPM at ___ PSI can the P-100 deliver at 20ft and 39ft?
100 GPM at 83 PSI and 68 GPM at 45 PSI
On a P-100, what should you do if the engine continues to run after the throttle control is in the “STOP” position?
Shut the fuel tank isolation valve
Never use a shore that is longer than ___ times the original thickness.
30
