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Dive Sup > Air/scuba Sup > Flashcards

Air/scuba Sup Flashcards

1
Q

Proficiency req for a dive sup

A

Sup 2 dives every 6 months/4 dives a year

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2
Q

Notify mdv and diving officer via ddo for

A

Diving after 1800
Single closure to sea work
Planned decompression

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3
Q

Pre requirements for getting into water at Point Loma

A 
Danger tag out/dive safe sheet filled out
Splash waf
Work waf
SDO briefed 
SDO to get permission from squadron
RADCON brief 
Dive brief/ORM/pre dives
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4
Q

Are strongbacks required for carrier cofferdams?

A

No, structural integrity is maintained by ribbed design

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5
Q

What system do ships use to submit work requests?

A

Aims

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6
Q

What is the 50’ rule?

A

Co of Repair activity and vessel must sign off when diving within

Dive sup determines when on the opposite side

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7
Q

Egs rules

A

Deeper than 60fsw or enclosed space diving.

50-150 whip may be used topside if shallower than 60fsw

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8
Q

High risk diving operation

A

RAC code 1 or 2

Deemed high risk by diving officer/mdv/dive sup

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9
Q

Open packages signatures

A

Open WAF
RADCON
246 stamp

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10
Q

What must mmp be maintained to in descent?

A

10fsw ahead of the divers

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11
Q

Radcon boundary for carrier

A

Frame 80-180

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12
Q

Notify port ops at 32nd

A

48 hours prior to and diving
Prior to entering and after exiting the water
Prior to diving past 1800

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13
Q

Considerations for Diving in the vicinity of active sonar

A

Dive sup notify mdv
Calculate safe working distances
Notify port ops to second lift with other operations
Sonar testing is normally authorized on NBSD from 1800-2359

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14
Q

What size steel is used for j bolts

A

5/8 drop forge steel

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15
Q

Safe sonar start distances

A

Wet suit unhooded - 1000yds
Wet suit hooded- 600yds
Helmeted- 3000yds

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16
Q

Radcon boundary for carriers

A

Frame 80-180

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17
Q

Fwp process for carriers

A
  • job into aims via ship sup
  • job sent to dive planners or psns
  • generates fwp and waf
  • schedules the dives
  • tagout
  • 105.3 briefed and signs fwp
  • divers review and sign fwp
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18
Q

When can standby be deployed as a working diver?

A 
No decompression 
Less than 60fsw
Same site
Deemed safe
Uwsh or uct work, not Salvage
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19
Q

Deliberate ORM

A

Routine ORM used for job briefs and safety checks

Uses IAMIS

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20
Q

Single closure to sea requirements

A

JHA- reviewed and signs by E7 or above

E7 or above will be on station for pre job safety brief and/or on job site prior to commencing work

E7 can depart after SAT leak check

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21
Q

Breathing air purity requirements

A

20-22% o2
1000 ppm co2
10 ppm co

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22
Q

What is the average respiratory minute volume rate for scuba

A

1.4 cfm

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23
Q

In depth ORM

A

Major planning and time

Usually done by tycoms and fleet commanders

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24
Q

Km37/mk20 current restrictions

A

Above 1.5 knots require extra weight

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25
Q

Prerequisites for splashing on Coronado

A 
Danger tagout/dive safe sheet
Waf opened
Ships Diving officer briefed
Two way comms with diving officer 
Radcon brief
Dive brief/ORM/pre dives
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26
Q

Radcon packages are generated from

A

Portsmouth naval shipyard

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27
Q

When can standby dress down

A

Discretion of the dive sup if the hazards of remaining dresses outweigh the need of having standby dressed out

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28
Q

Operational risk principles

A

Accept risk when you know the facts and the benefits outweigh the cost

Accept no unnecessary risk

Anticipate and manage risk by planning

Make risk decision at right level

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29
Q

DOD Civilian diver restrictions

A

Max depth: 130 fsw

Recompression chamber within 5 min past 100 fsw or outside no “d” limits

Must have a reserve valve or separate air cylinder with reg

Must have submersible pressure gauge

Must remain at recompression chamber for 1 hour after decompression dive and 5 min of the dive location

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30
Q

How often do you signal a diver

A

2-3 min

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31
Q

Required distance from bottom of ship to bottom of sea bed

A

Ship/sub/carrier- 6’

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32
Q

Fwp process for 32nd

A
  • job submitted via ships sup into aims
  • dive planners generate fwp and waf
  • dive planners schedule dives
  • tagout
  • divers review and signs fwp
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33
Q

Who gives you permission to dive at 32?

A

Edo

Duty officer

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34
Q

Time critical risk management

A

Requires a high degree of situational awareness

Utilizes ABCD

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35
Q

What must a BC provide

A 
10lbs of buoyancy at max depth
Jettison-able weights
Power inflator
Oral inflator
Over pressure relief valve
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36
Q

2-1-2

A

Slate

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37
Q

Min manning for scuba

A

Single diver- 4
Buddy pair- 4

Tenders can be non divers but thoroughly briefed

Dive sup can tend stand by if deployed

Must have three qualified divers at least

38
Q

5

A

Line

39
Q

Short form in the sub package

A

Breaks down job steps

40
Q

Required distance for a ship/sub/carrier from a pier

A

Ship/sub 4’

Carrier 20’

41
Q

How to dive deeper than 130fsw in scuba

A

Oic or co approval

42
Q

Who approves high risk diving ops

A

RAC 1- CO / submit a CCIR

RAC 2- diving officer/mdv approval

43
Q

Requirements before unhatting in a ballast tank

A

:30 lp blow within 24hrs of diving

Gas free every hour, NSTm 074

44
Q

Foam Patches for carriers

A

Type 2 Closed cell

45
Q

Who’s permission do you need to dive for north island?

A

Diving officer of the ship
Edo
Port ops

46
Q

Level 3 non us navy chambers designated by co

A

Bahrain king hamad university hospital
Singapore navy and Singapore hospital
Wisconsin
UCSD

47
Q

Who signs safe sheet?

A

Point Loma- sdo
32- duty officer/edo
North island- diving officer/edo

48
Q

Top hat rod meter cofferdam

A

6 feet tall, wrapped in foam

Wire rope belly bands

20ft slings attached you two openings with battle bars

Come along and 5/8 shackle used

49
Q

Km 37 max depth

A

285fsw with oic approval

50
Q

Air consumption for km 37

A

0.75-1.5 acfm demand

8 acfm free flow

51
Q

Where do alpha jobs come down from?

A

PSNS

Newport News

52
Q

OSHA restrictions for dod civilians in surface supplied diving

A

Max depth is 190fsw unless less than :30 BT-220 fsw

Recompression chamber within 5 min for dives past 100fsw

Egs required for all decompression dives

Must remain at location of chamber for all dives requiring a 5 min chamber

53
Q

Swrmc inst

A

3150.1e

54
Q

Chapter 16 appendixes

A 
A-material req
B-open bottom dry chamber rigging calc
C-patch and plug insp check sheet
D-patch and plug install check sheet
E-min diver cofferdam training 
F-jbolt min req
G-report of ship’s responsibility for patch installations or single valve protection
55
Q

What is ice diving identified for scuba?

A

37 degree Fahrenheit and below

56
Q

Fwp process for subs

A
  • job submitted via ships sup into aims
  • job sent to psns
  • psns generates fwp and waf
  • c246 reviews and generates work waf and tagout req
  • combat systems schedules dives and reviews fwp
  • tagout and generate splash waf
  • 105.3 briefed and signs fwp
  • divers review and sign fwp
57
Q

Props on a carrier

A

Port 4 1 STBD

3 2

58
Q

How to dive outside normal working hours

A

Co approval via port ops prior to 1700
Notify diving officer and mdv
Point Loma/north island contact port ops

59
Q

Decompression scuba dive authorization

A

Co or oic

60
Q

Working hour limits

A

Past 1600- notify LCPO/MDV
1800- nbsd normal secure time
2000- Point Loma/coronado normal secure time

61
Q

How far apart are frames on a carrier

A

4’

62
Q

Who issues packages for subs

A

246

63
Q

Limits of scuba

A

Normal: 130 fsw
Max: 190 fsw

64
Q

Boating or dive operation brief outside San Diego Harbor will include

A 
Navigation
Sailing list
Pre underway check sheet
Primary and sec communications
Notify port ops
Risk assessment matrix
65
Q

Radcon boundaries on 688

A

Fwd edge of sail to aft flag pole

66
Q

Radcon code

A

105

67
Q

Asra air capacity

A

3.15 floodable volume
5000psi
9671scf

68
Q

4-3

A

Circulate

Less air

69
Q

What does the mishap report include?

A

Contact NEDU about shipping equipment

Equipment Mishap Info Sheet (supsalv)

Narrative of events, photos, videos

All 3M records

70
Q

Single valve work on carriers

A

Alpha on station for duration of work

E7 in space until leak check SAT

salt and pepper lines between dive side and work space

Single valve work brief conducted in ward room, morning of dive, includes all work centers involved, DC man, dive sup, onboardsman, flooding plan covered in detail

71
Q

DOD civilian divers are identified as

A

All permanent DOD employees who have been formally trained at an approved US navy dive school

72
Q

Pitsword boss nut torque

A

100lbs

73
Q

ORM

A

A-access the situation
B-balance your resources
C-communicate
D-Do and debrief

Identify hazards
Assess
Make risk decisions
Implement controls
Supervise
74
Q

Who’s permission to dive in Point Loma?

A

Squadron CDO

75
Q

What side do carriers moor up

A

Starboard (port has discharges)

76
Q

How many contaminated discharges are on the carrier?

A

Port side 6

Silver ring with flush bolts

77
Q

1-2-3

A

Square mark

78
Q

3-2

A

Ventilate

More air

79
Q

Reactor stay times

A

0-15 min: reactor is critical, no diving

15min-24hrs: 10 min stay time, TLD and EPD required

Greater than 24 hours: TLD

80
Q

Current limitations for scuba

A

1 knot max

Over 1 not requires ORM and a witness float

81
Q

Types of diving hazards and near mishaps

A 
Shift to sec
Aborted dive
Trapped or fouled diver with standby
Lost diver with standby
Exceeding max depth, BT, Omitted d, o2 exp 
Improper lineups
Unauthorized outside activity
82
Q

What is the James river

A

Attachment to discharge to disperse the water

83
Q

Radcon brief for north island

A

Contact Mel day prior

Alpha dive office the morning of dive

84
Q

Types of mishaps to report

A 
All recompression tx 
DCS type1/2
POIS
loss of consciousness
O2 tox
85
Q

Min manning for surface supplied dives

A

1 Diver- 7 iaw 3150

86
Q

5 req for a package

A
  • Material
  • initial conditions
  • procedures
  • test and inspection
  • Restoring the system
87
Q

Diving past 1800

A

Call port ops by 1700

88
Q

Diving after 2000

A

Call base CDO by 1800

89
Q

Emergent work

A

Get splash waf and blank package

90
Q

Start work on 32

A
  • Open waf
  • Write open waf on package
  • sign for authorization to work
  • write out tags
  • bounce off igl
  • start work

Dive Sup (8 decks)

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