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Dive Sup > Air/scuba Sup > Flashcards

Air/scuba Sup Flashcards

(90 cards)

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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
Prerequisites for splashing on Coronado
``` Danger tagout/dive safe sheet Waf opened Ships Diving officer briefed Two way comms with diving officer Radcon brief Dive brief/ORM/pre dives ```
26
Radcon packages are generated from
Portsmouth naval shipyard
27
When can standby dress down
Discretion of the dive sup if the hazards of remaining dresses outweigh the need of having standby dressed out
28
Operational risk principles
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
29
DOD Civilian diver restrictions
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
30
How often do you signal a diver
2-3 min
31
Required distance from bottom of ship to bottom of sea bed
Ship/sub/carrier- 6’
32
Fwp process for 32nd
- job submitted via ships sup into aims - dive planners generate fwp and waf - dive planners schedule dives - tagout - divers review and signs fwp
33
Who gives you permission to dive at 32?
Edo | Duty officer
34
Time critical risk management
Requires a high degree of situational awareness Utilizes ABCD
35
What must a BC provide
``` 10lbs of buoyancy at max depth Jettison-able weights Power inflator Oral inflator Over pressure relief valve ```
36
2-1-2
Slate
37
Min manning for scuba
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
5
Line
39
Short form in the sub package
Breaks down job steps
40
Required distance for a ship/sub/carrier from a pier
Ship/sub 4’ | Carrier 20’
41
How to dive deeper than 130fsw in scuba
Oic or co approval
42
Who approves high risk diving ops
RAC 1- CO / submit a CCIR RAC 2- diving officer/mdv approval
43
Requirements before unhatting in a ballast tank
:30 lp blow within 24hrs of diving Gas free every hour, NSTm 074
44
Foam Patches for carriers
Type 2 Closed cell
45
Who’s permission do you need to dive for north island?
Diving officer of the ship Edo Port ops
46
Level 3 non us navy chambers designated by co
Bahrain king hamad university hospital Singapore navy and Singapore hospital Wisconsin UCSD
47
Who signs safe sheet?
Point Loma- sdo 32- duty officer/edo North island- diving officer/edo
48
Top hat rod meter cofferdam
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
Km 37 max depth
285fsw with oic approval
50
Air consumption for km 37
0.75-1.5 acfm demand | 8 acfm free flow
51
Where do alpha jobs come down from?
PSNS | Newport News
52
OSHA restrictions for dod civilians in surface supplied diving
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
Swrmc inst
3150.1e
54
Chapter 16 appendixes
``` 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
What is ice diving identified for scuba?
37 degree Fahrenheit and below
56
Fwp process for subs
- 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
Props on a carrier
Port 4 1 STBD | 3 2
58
How to dive outside normal working hours
Co approval via port ops prior to 1700 Notify diving officer and mdv Point Loma/north island contact port ops
59
Decompression scuba dive authorization
Co or oic
60
Working hour limits
Past 1600- notify LCPO/MDV 1800- nbsd normal secure time 2000- Point Loma/coronado normal secure time
61
How far apart are frames on a carrier
4’
62
Who issues packages for subs
246
63
Limits of scuba
Normal: 130 fsw Max: 190 fsw
64
Boating or dive operation brief outside San Diego Harbor will include
``` Navigation Sailing list Pre underway check sheet Primary and sec communications Notify port ops Risk assessment matrix ```
65
Radcon boundaries on 688
Fwd edge of sail to aft flag pole
66
Radcon code
105
67
Asra air capacity
3.15 floodable volume 5000psi 9671scf
68
4-3
Circulate | Less air
69
What does the mishap report include?
Contact NEDU about shipping equipment Equipment Mishap Info Sheet (supsalv) Narrative of events, photos, videos All 3M records
70
Single valve work on carriers
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
DOD civilian divers are identified as
All permanent DOD employees who have been formally trained at an approved US navy dive school
72
Pitsword boss nut torque
100lbs
73
ORM
A-access the situation B-balance your resources C-communicate D-Do and debrief ``` Identify hazards Assess Make risk decisions Implement controls Supervise ```
74
Who’s permission to dive in Point Loma?
Squadron CDO
75
What side do carriers moor up
Starboard (port has discharges)
76
How many contaminated discharges are on the carrier?
Port side 6 Silver ring with flush bolts
77
1-2-3
Square mark
78
3-2
Ventilate | More air
79
Reactor stay times
0-15 min: reactor is critical, no diving 15min-24hrs: 10 min stay time, TLD and EPD required Greater than 24 hours: TLD
80
Current limitations for scuba
1 knot max Over 1 not requires ORM and a witness float
81
Types of diving hazards and near mishaps
``` 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
What is the James river
Attachment to discharge to disperse the water
83
Radcon brief for north island
Contact Mel day prior | Alpha dive office the morning of dive
84
Types of mishaps to report
``` All recompression tx DCS type1/2 POIS loss of consciousness O2 tox ```
85
Min manning for surface supplied dives
1 Diver- 7 iaw 3150
86
5 req for a package
- Material - initial conditions - procedures - test and inspection - Restoring the system
87
Diving past 1800
Call port ops by 1700
88
Diving after 2000
Call base CDO by 1800
89
Emergent work
Get splash waf and blank package
90
Start work on 32
- 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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