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BIBS Study > (2024 Exam) USN Dive Man > Flashcards

(2024 Exam) USN Dive Man Flashcards

Appendix. 2B, 2C, 2D, 5A, 5B, 5C Ch 2- Ch 18

1
Q

How many NDC variants are authorized on the ANU?

A

5, ranging from open circuit air (N2O2) to closed circuit N2O2 and HeO2.

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2
Q

How often should a diver monitor their NDC’s?

A

Every two to three minutes.

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3
Q

How long shall a diver wait if he loses his NDC data?

A

24hrs.

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4
Q

When shall a diver about dive if the NDC does not transition into dive mode?

A

If it doesn’t transition by 10fsw.

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5
Q

How long does a desaturating diver that loses his NDC data need to wait before flying?

A

After a minimum of 24 hours have elapsed.

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6
Q

EP for loss of NDC during dive?

A

1) Abort dive
2) Use buddy divers NDC as the governing NDC
3) If single diver or both divers loose NDC, the diver(s) must weigh the risk of DCS from immediately surfacing.Obviously if the diver(s) know they are well inside no-decompression limits, they should abort the dive and ascend following the slowest bubble. The diver(s) should be observed for one hour after surfacing.

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7
Q

Below what temperature is considered cold water diving?

A

37 degrees and colder

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8
Q

At what temperature is considered warm water diving?

A

Diving operations above 88 degrees.

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9
Q

Diving in water temps above ____ degrees should not be attempted w/out first contacting __________?

A

99 degrees
NAVSEA 00C

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10
Q

When diving in warm water, a diver should hydrate fully(approx 500ml or 17oz) ____ hours before diving?

A

two

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11
Q

Approx. how much water should be replenish for every hour of diving in warm water?

A

500ml

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12
Q

How long must a diver wait in a cool environment prior to repeating a warm water dive?

A

12hrs minimum, diver must be re-hydrated, calorically repleted to baseline weight and rested.

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13
Q

At what temperature is thermal protection usually needed?

A

below 80 degrees.

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14
Q

At what altitude are Air D tables good to without correction?

A

300ft

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15
Q

A minimum positive clearance of ___ feet must be established when diving below bilge keel on surface ships or below the maximum beam on submarines.

A

six feet

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16
Q

A positive clearance of ____ feet between the pier and the vessel should be established and maintained in order to provide an egress path for divers.

A

four

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17
Q

When are GFI’s required?

A

GFIs are required when line voltage is above 7.5 VAC or 30 VDC.

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18
Q

Where are the “max working shackle placed on the umbilical when diving on a DP vessel?

A

It is placed to ensure the primary divers will not get closer than 15 ft and the standby diver 10 feet to the nearest hazard.

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19
Q

Standby diver’s umbilical must be a minimum of _____ longer than the primary diver’s umbilical in order to provide assistance in the case of an emergency?

A

5 feet

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20
Q

OPNAVINST 3150.27 requires retention of Command Dive Logs for ___ years?

A

3 years

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21
Q

F.A.R.’s can be accessed at _________ ______, or through _______ and _______ ?

A

Https://Secure.Supsalv.org OOC3 PMS-EOD and SPECWAR quick links at Supsalv.org

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22
Q

____ manual provides instructions for investigation and reporting procedures required in instances when the mishap may have occurred as a result of procedural or personal error.

A

Judge Advocate General (JAG)

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23
Q

Wet suit/Un-Hooded dives should start at ____ yards and move in to diver comfort?

A

1000 yards

24
Q

Wet suit / Hooded divers should start at ____ yards and move in to divers comfort?

A

600 yards

25
Q

Helmeted divers should start at _____ yards and move in to divers comfort?

A

3000 yards

26
Q

BUMEDINST for Hyperbaric O2 Treatment in Navy Recompression Chambers?

A

BUMEDINST 6320.38

27
Q

NSTM Ch 74 is for?

A

Gas Free Engineering

28
Q

Mil-STD-1330 is for?

A

Cleaning and testing of shipboard oxygen, and nitrogen systems, Helium.

29
Q

OPNAVINST 5100.19C, Appendix A-6 is for?

A
30
Q

OPNAVINST 5100.23 is for?

A
31
Q

OSHA 29 CRF part 1910 is for?

A

Commercial Diving Operations

32
Q

OOC3 is for?

A

Diving

33
Q

OOC4 is for?

A

Certification

34
Q

OOC5 is for?

A

Husbandry

35
Q

Nitrogen Narcosis must be considered as dive profiles exceed _____fsw?

A

100fsw

36
Q

A diver in SS with heavy weights can usually work in currents up to ___ knots w/out undue difficulty, and can accomplish useful work in currents as strong as ___ knots with additional weights?

A

1.5 knots2.5 knots

37
Q

Free swimming Divers are severely handicapped by currents greater than ___ knot?

A

1.0 knot

38
Q

Cold Water Diving is defined as diving in water Temperatures ___ degrees F and colder?

A

37 degrees and colder

39
Q

Warm Water Diving is defined as dives that occur in water temperatures exceeding ___ degrees?

A

88 degrees

40
Q

At ___ degrees a resting diver will get chilled in 1-2 hrs?

A

80 degrees

41
Q

Air “D” tables and SS Helium-Oxygen tables are authorized for use up to ____ ft above sea level w/out correction and electronic UBA tables may be used up to ____ft w/out correction?

A

300 ft AIR/HeO21000 ft EUBA

42
Q

A minimum positive clearance of the keel to the bottom at mean low-water of ___ft must be established when diving below the bilge keel on surface ships or below the maximum beam on Subs.

A

6ft

43
Q

When is enclosed space diving authorized in SCUBA?

A

Enclosed space diving in scuba is strictly limited to saving human life, or saving/recovering items of such importance to warrant the risk of potential loss of life.

44
Q

What parts of the body are most vulnerable to pressure affects of an explosion?

A

Head, lungs, intestines.

45
Q

Difference between International maritime organization class 2 & class 3 for DP ships?

A

Both will maintain automatic or manual position and heading control under a specified maximum environmental conditions. Class 2 excludes the loss of a compartment. While Class 3 includes a loss of a compartment. Class 3 requires the two independent computer systems to be separated by a bulkhead.

46
Q

While Dive operations are in progress, DO vessel should not change heading more than___° at a time and movements will not exceed more than ___feet

A

5 degrees, 32ft

47
Q

Divers umbilicals should never be allowed to come within ___feet of the nearest thruster or propeller that is in a operating mode.

A

15ft

48
Q

The umbilicals should be attached along the stage wire at intervals of no greater than ___ft?

A

50

49
Q

Diver umbilicals shall be marked every ___ and at a point to identify distance to closest hazard based on the plan depth of the dive.

A

25’

50
Q

Standby’s “Max Shackle” allows for Standby to get within ___ft of the nearest hazard?

A

10ft

51
Q

The “Short Stay” is a shackle places ___ to ___ ft from the end of the umbilical?

A

6 to 8 feet

52
Q

If the DP vessel is using ___% power sustained to maintain position on station, discontinue diving operations?

A

65%

53
Q

Each diver breathing air source in service must be sampled approximately every ___ months (within the interval between __ and __ months following the last accomplishment), when contamination is suspected, and after system overhaul?

A

6 month with 4 to 8 month range.

54
Q

For Mk-16, repetitive dives with a PPO2 over 1.0 ata shall be limited to ___hrs a day and ___hrs a week?

A

4 hours a day, 16 hours a week.

55
Q

The EC-UBA decompression procedures may be used for diving at altitudes up to____ feet without modification?

A

1000 feet

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