[Damage Control]

Question 1

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

Answer 1

50%

Question 2

How should you never place a shore?

Answer 2

Below the point of compression (results in bowing)

Question 3

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

Answer 3

Adjustable shore measuring batten

Question 5

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

Answer 5

P-100

Question 6

How long should the P-100 idle before stopping?

Answer 6

2 minutes

Question 7

What two things are key to damage control success?

Answer 7

Teamwork and preparation

Question 8

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

Answer 8

Patching

Question 9

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

Answer 9

3-5 minutes to prevent corrosion

Question 10

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

Answer 10

Watertight integrity

Question 13

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

Answer 13

1.45 gallons and 2.75 hours

Question 14

What type of plug performs best and why?

Answer 14

Plugs made of bare, soft wood because they swell

Question 15

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?

Answer 15

Jubilee patch

Question 16

How should wedges be driven in?

Answer 16

Uniformly from both sides

Question 17

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

Answer 17

Metallic pipe kit

Question 19

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

Answer 19

6

Question 20

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

Answer 20

Shole

Question 20

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

Answer 20

Carpenter’s square

Question 21

What is the criteria for placement of the emergency generator?

Answer 21

1) Always in a separate compartment from the main generators

2) Above the waterline

Question 22

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

Answer 22

Silicone compound should be sprayed on internals

Question 23

What are the two phases of shoring?

Answer 23

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

Question 24

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

Answer 24

5-60 drops per minute

Question 26

How is the P-100 cooled?

Answer 26

Air-cooled

Question 26

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

Answer 26

Hinged plate patch

Question 27

What are the three steps to shoring?

Answer 27

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

Question 27

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

Answer 27

Plugging

Question 27

How do you prevent a crack from cracking any further?

Answer 27

Drilling a small hole at each end of the crack

Question 28

What type of patch involves using a galvanized bucket?

Answer 28

Bucket patch

Question 29

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

Answer 29

Size and depth of hole

Question 30

What is shoring?

Answer 30

Wooden or metal beams propped up against a structure

Question 31

What is the ultimate aim when plugging a leak?

Answer 31

To stop the leak permanently

Question 32

What are the three soft patch procedures?

Answer 32

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

Question 33

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?

Answer 33

1) Hook bolt | 2) T, L, and J

Question 35

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

Answer 35

Strongback

Question 36

How should shores be cut to allow for wedging?

Answer 36

1/2 inch shorter than the measured length

Question 37

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

Answer 37

Pillows, mattresses, and blankets

Question 38

Where are shoring tools stored on the ship?

Answer 38

Damage control locker

Question 39

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

Answer 39

100 GPM at 83 PSI and 68 GPM at 45 PSI

Question 39

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

Answer 39

Shut the fuel tank isolation valve

Question 39

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

Answer 39

30