SALV TEST QS Flashcards
Heave Around
Hauling line or Chain Via capstan
Slack
Ease out line so no strain is taken
Hold
Hold line even though it may part
Check
Keep strain paying out to prevent parting
Up Behind
Slack off quickly, run to a belay point
Take up slack
heave in on the line but do not take a strain
Double up
Pass an additional bight through a mooring line
Hold line ___ degrees from force
90
Tells the strain of a line
tattle tails
Hot water protection __ degrees
40
Cold water is ___ Degrees
37
Main bow Rollers, weight, what do they do
150 tons, Mechanical lifts, Heave on wire ropes or chain rigged on a sunken object
Leak categories
Minor, Moderate, Major
Minor leak definition
Hull cracks, broken pipes, loose seems, small holes
Minor leak patch material
Wood plugs, wedges, GRP
Moderate leak definition
Hull or bulkhead opening that cannot be closed
Moderate leak patching material
Require site prep, template, patchs are bulky for one man
Major leak definition
Extensive hull bulkhead damage
Major leak patching
Large scale steel work, extensive diving
Steel patchs
Readily available, easy to work with, strong backed bolted, welding allows semi permanent repairs
Plywood patchs
Used intertidal zone where pressure is low, Small patchs can seal leaks 30” or lower, not a long term solution
What are the most common types of educators used?
S-type; single jet, has built in foot valve to prevent back flow.
Peri-Jet; six nozzles, can pass solid objects up to 2” in diameter.
How do educators operate?
Using the Venturi principle.
Advantages of educators?
- require min. pressure
- are small and compact
- safe in enclosed spaces containing fuel or POL residues
- can driven from the fire main
Cofferdams definition
Temporary water tight extension of the hull to the surface