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1C > SUP SALV, UWSH, Planning > Flashcards

SUP SALV, UWSH, Planning Flashcards

1
Q

Heave around

A

Using a capstan to haul in line or chain

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2
Q

Slack

A

Ease out line or loosen so there is no strain

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3
Q

Hold

A

Not allow any more line to go out even with risk of parting

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4
Q

Check

A

Keep a strain but pay out to prevent parting

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5
Q

Up Behind

A

slack off and run slack to a belay point, given when line or cable has been stopped off or falls 2 blocked.

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6
Q

Hand over Hand

A

one hand after the other

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7
Q

Take up slack

A

Heave in line but do not strain

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8
Q

Double up

A

Pass additional bight on all mooring lines, equal train on all

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9
Q

Ships mooring lines are numbered

A

Fore to aft

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10
Q

Preparing to come along side you should have __ heaving lines

A

two

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11
Q

Anchor Hawk

A

Used for dragging for submerged objects, holding power when it snags

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12
Q

Grapnel

A

Used for dragging, bottom search/recovery of small objects

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13
Q

Internal Survey

A

Checking for damage flooding holes cracks

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14
Q

External survey

A

Checking for damage running gear sonar exterior hull

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15
Q

Navy Salvage ships are limited to ___tons of bow lifting capacity

A

150

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16
Q

Ars-50 Class heavy lift main bow roller lift per wire

A

75 tons

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17
Q

Ars-50 Class heavy lift Stern rollers

A

75 tons

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18
Q

Ars-50 Class heavy lift rollers used in conjunction

A

300 tons

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19
Q

Beach gear rigged luff on luff bow lift purchase should be monitored with a

A

dynamometer

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20
Q

3 categories of leaks

A

Minor, moderate, Major

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21
Q

Patchs placed externally

A

when pumping

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22
Q

Patchs placed internally

A

when de-watering

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23
Q

DC patchs installed by crew

A

Always suspect should be replaced

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24
Q

Crack repair

A

Patch extends 6” on all sides, drill at ends of crack, fit patch, weld in place

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25
Q

Flat patch

A

The most common type of patch

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26
Q

Ply wood should be ____ the hole dimensions

A

twice

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27
Q

Box patch

A

Flat patch with sides to fit the hull, built on surface/heavy

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28
Q

Three types of cofferdams

A

Complete, partial, small

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29
Q

Cofferdams should have what installed in case of stability issues

A

Quick flood valves

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30
Q

Recovery buoyancy, 4 basic methods

A

Pumping, blowing, Combo of pump/blow, induced buoyancy

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31
Q

Pumping requires _____ prep and set-up time then other de-watering methods

A

Less

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32
Q

Pumping allows the ship to come up _____ giving more control

A

slower

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33
Q

Eductors most common types

A

S-type (single, Peri-jet (pass 2” solids)

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34
Q

Air Lift efficiency governed by

A

Volume and pressure of air supply relative to water depth, Depth of water, position of inlet

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35
Q

Airlifts use Air to create a

A

Differential pressure in the pipe that lifts

36
Q

Petroleum, Oil, Lubricants POL pumping

A

Submersible-Hydralic or electric, Pnematic diaphram,

37
Q

Besides pumping ______ is another common type of dewatering

A

Compressed Air

38
Q

Compressed Air is best used for

A

Controlled Air blowing will reduce pressure differential.

Regaining sufficient Buoyancy to re-float ships that are sunk on sides or upside down.

39
Q

Compressed Air dewatering initiated when

A

Casualty is hard up, close to the ground

Conditions are bad surf, surge, ground swell

40
Q

Requirements to dewater with compressed air

A

Watertight or capable of being made so.
vertical sides capable of being made water tight.
Damage low, Standpipe to carry water
High capacity air compressors, Special relief valve

41
Q

Weight management - 5 methods to reduce ground reaction

A 
Weight management
Induced buoyancy
Ground removal
Lifting
Temporary reductions
42
Q

Ground removal - Scouring

A

Prop Wash from tugs or ships
jetting pumps
Dredgeing

43
Q

2 most common types of pulling systems used

A 
Tugs
Commercial, Auxillary rescue ship (ARS), Fleet ocean tugs (T-ATF)
Ground Tackle
Linear puller
Purchase system
44
Q

Ground Tackle System 2 types

A

Direct Pull system

Purchase system

45
Q

Direct Pull Systems

A

Hydraulic - 200000 up to 300000

Electrical - 110VAC/12VDC 200000

46
Q

Hydraulic power unit

A

HPU MOD 6 - 50 class only/3800 LBS.

47
Q

Direct Pulls system Advantages

A

Fewer people to operate than purchase system

Controls can be placed anywhere

48
Q

USN salvage ships carry a minimum of __ pullers and purchases

A

6

49
Q

3 basic part of a purchase system

A

standing block, traveling block attached to ground leg, Wire rope rove to sheaves, pulls up to 60 tons

50
Q

Purchase system ground leg is always gripped by

A

one of the carpenter stoppers

51
Q

Ground Leg (Beach Gear)

A

Anchor, chain, wire rope, retrival wire and buoys

52
Q

Pulling system uses this most common type of anchor

A

Drag embedment

53
Q

Navmoor Anchor

A

6000 LB type modified for salvage

54
Q

Stato Anchor

A

6000 LB most suitable for beach gear

55
Q

Ells Anchor

A

8000LB type not as good as stato or navmoor

56
Q

LWT light weight Anchor

A

6000LB type adjustable flukes

57
Q

Navy stockless

A

Used as ships bow anchor

58
Q

Chain

A

2 1/4 die lock, holds anchor to sea floor, resists chaffing

59
Q

Ground leg - Usually one shot of chain is used, how many feet?

A

90

60
Q

When leading chain around a corner the diameter of the bend must be at least

A

7 times the diameter of the bar that forms on the chain. 3 links should be in contact with the curved surface.

61
Q

Jewelry - 2 types of detachable links

A

Standard - connects to same size, Pear shape - connect to different size chain

62
Q

Jewelry - Detachable link components are not

A

interchangeable

63
Q

Support retrieving or crown wires 2 types

A

42” steel weighs 325 lbs supports 1100 LBS

40” Nylon 164 LBS supports 1000 LBS

64
Q

Crown Pendant used to

A

Recover/Reset ground anchor

65
Q

Beach gear should not be used in water deeper than

A

50 fathoms

66
Q

Currents and water condition

A

EBB/FLOW/ Rip currents/ Undertow/ Surface current

67
Q

MK 21 SSDS with heavy weight can work in currents

A

1.5 - 2.5 KNOTS

68
Q

Scuba diver is severely affected by __Knots of current

A

1

69
Q

Air supply 5 criteria

A

Flow MMP, Overbottom, duration of depth, EGS

70
Q

ARS class ship equipped for what diving and how deep

A

Air, 190 FSW

71
Q

coffer damns are defined as

A

Plug, Patch, or dry chamber externally installed below the waterline

72
Q

2 types of dry chambers

A

open bottom, open top

73
Q

Navsea ____ has designs for cofferdamns

A

OOC5

74
Q

Provides underwater profile, hull view, size of openings, appendages

A

docking plans

75
Q

templateing

A

process to pattern a hull , forming and sealing surface cofferdamns

76
Q

Primary method of securing a patch

A

Jbolts or hogging lines

77
Q

Relative motion, overcomeing it

A

two objects moving at different times, secure object to the ship working on

78
Q

Authorization for work and brief of installation of flange or fitting

A

Ships duty officer, LWC, Supervisor, dive supervisor, work authorization form

79
Q

Positive verification of fitting/flange integrity from inboard must be done IAW

A

JFFM Para 2.a

80
Q

Technical work Documents provide

A

how to construct and install maintenance task

81
Q

Technical work documents contain 3 general types

A

Maintenance procedures MP
Formal work packages FWP
Controlled work packages CWP

82
Q

FWP provides

A

Hardware, Software, lubricants IAW MFR specs

83
Q

CWP provides

A

Higher authority of OQE

84
Q

Work Authorization

A

Properly authorized and control ensure personnel and ship standards are met

85
Q

All outside activity on ship repair require

A

Work authorization form

86
Q

WAF is authorized by the

A

Watch/Duty officer

1C (18 decks)

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