[Damage Control] Flashcards

1
Q

What percentage of water-influx reduction is considered to be success?

A

50%

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2
Q

How should you never place a shore?

A

Below the point of compression (results in bowing)

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3
Q

What is the most rapid and accurate way to measure shores for cutting?

A

Adjustable shore measuring batten

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5
Q

What pump unit is a commercial diesel-driven portable pump designed for firefighting, dewatering, and many utility functions?

A

P-100

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6
Q

How long should the P-100 idle before stopping?

A

2 minutes

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7
Q

What two things are key to damage control success?

A

Teamwork and preparation

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8
Q

What is used to cover larger holes with sections of improvised or prefabricated material?

A

Patching

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9
Q

How long should the P-100 be flushed with fresh water after used with seawater?

A

3-5 minutes to prevent corrosion

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10
Q

What do the safety and life of a ship depend on?

A

Watertight integrity

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13
Q

How many gallons of fuel can the P-100 hold, and for how long can it operate?

A

1.45 gallons and 2.75 hours

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14
Q

What type of plug performs best and why?

A

Plugs made of bare, soft wood because they swell

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15
Q

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?

A

Jubilee patch

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16
Q

How should wedges be driven in?

A

Uniformly from both sides

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17
Q

Which type of pipe repair can repair and restore most water, fuel, and gas lines within 30 minutes?

A

Metallic pipe kit

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19
Q

The length of a wedge cannot be more than ___ times the minimum thickness?

A

6

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20
Q

What is a plank or plate with pockets chiseled out for a rivet head?

A

Shole

20
Q

What should be used in the absence of a shoring batten?

A

Carpenter’s square

21
Q

What is the criteria for placement of the emergency generator?

A

1) Always in a separate compartment from the main generators

2) Above the waterline

22
Q

What should be done to the P-100 after flushing it?

A

Silicone compound should be sprayed on internals

23
Q

What are the two phases of shoring?

A

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

24
Q

How many drops per minute should the packing screw allow on the P-100?

A

5-60 drops per minute

26
Q

How is the P-100 cooled?

A

Air-cooled

26
Q

What is the variation of the plate patch that is circular, 18 inches or less in diameter, and cut in two?

A

Hinged plate patch

27
Q

What are the three steps to shoring?

A

1) Clear decks of wreckage
2) Speed
3) Preparation

27
Q

What is a technique used for filling small holes with suitable material?

A

Plugging

27
Q

How do you prevent a crack from cracking any further?

A

Drilling a small hole at each end of the crack

28
Q

What type of patch involves using a galvanized bucket?

A

Bucket patch

29
Q

What two factors affect the amount of water entering a space?

A

Size and depth of hole

30
Q

What is shoring?

A

Wooden or metal beams propped up against a structure

31
Q

What is the ultimate aim when plugging a leak?

A

To stop the leak permanently

32
Q

What are the three soft patch procedures?

A

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

33
Q

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?

A

1) Hook bolt

2) T, L, and J

35
Q

What is a bar or beam of wood or metal used to distribute pressure or to serve as an anchor for a patch?

A

Strongback

36
Q

How should shores be cut to allow for wedging?

A

1/2 inch shorter than the measured length

37
Q

What are three general items that can be used for patching?

A

Pillows, mattresses, and blankets

38
Q

Where are shoring tools stored on the ship?

A

Damage control locker

39
Q

How many ___ GPM at ___ PSI can the P-100 deliver at 20ft and 39ft?

A

100 GPM at 83 PSI and 68 GPM at 45 PSI

39
Q

On a P-100, what should you do if the engine continues to run after the throttle control is in the “STOP” position?

A

Shut the fuel tank isolation valve

39
Q

Never use a shore that is longer than ___ times the original thickness.

A

30