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Chamber SUP > Scuba Sup > Flashcards

Scuba Sup Flashcards

1
Q

What is the normal working limit for scuba?

A

130fsw

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2
Q

What is the maximum working limit for scuba?

A

190fsw

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3
Q

What is the minimum equipment required for SCUBA?

A
  • Fins
  • knife
  • Mask
  • BC
  • submersible pressure gauge
  • Watch
  • Tanks
    -weights
  • Depth gauge
  • Octopus (commanding officer)
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4
Q

What are the advantages to SCUBA?

A
  • rapid deployability, portability, minimal support, minimal bottom disturbance, horizontal and vertical mobility.
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5
Q

SCUBA applications?

A

Shallow searches, inspections, light repair and recovery.

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6
Q

Disadvantages to scuba?

A

Limited endurance, limited protection, influenced by current, lack of voice comms.

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7
Q

Maximum current for scuba?

A

1 knot

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8
Q

Is standby required?

A

Yes.

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9
Q

When is small craft mandatory for SCUBA operations?

A
  • open ocean diving.
  • when untended
  • when diving off large platform.
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10
Q

What is the minimum manning for SCUBA?

A
    1. Sup, tender, diver, standby
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11
Q

What does the first stage regulator do?

A
  • reduce high pressure air from cylinders to intermediate pressure (over bottom).
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12
Q

What does the second stage regulator do?

A
  • Reduces pressure from second stage.
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13
Q

At what PSI must a diver abort?

A

-500 psi for single bottle.
- 250psi for double bottles.

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14
Q

How often must SCUBA bottles be visually inspected?

A
  • every 12 months
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15
Q

How often must SCUBA bottles be hydro?

A
  • Every 5 years
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16
Q

What features does a BC need to have?

A
  • able to provide 10 pounds of buoyancy.
  • have jettisonable weights
  • power inflator
  • oral inflator
  • over pressure relief valve.
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17
Q

How long should the buddy line be?

A

6-10 feet

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18
Q

What is the charging rate of SCUBA bottles?

A
  • 400 wet, 200 dry
19
Q

What are some communication methods of SCUBA?

A
  • Slate, line pulls, hand signals
20
Q

What emergency equipment should be present?

A
  • AED
  • First aid kit
  • BVM
  • spine board
  • lost diver bouy
    -portable oxygen
21
Q

What are the three levels of chamber support?

A

Level 1- within 5 minutes
Level 2- within 1 hour
Level 3- within 6 hours

22
Q

When should you give 5 rescue breaths

A
  • when diver was found unconscious on the bottom
23
Q

What is the length of a distance line?

A

10-100ft

24
Q

What is the length of a buddy line?

A

6-10 feet

25
Q

What is the RNT exception rule?

A

When the RNT is greater than the bottom time, you use the bottom time.

26
Q

At what temperature does cold water diving start?

A

37 degrees

27
Q

At what temperature does warm water diving start?

A

88 degrees

28
Q

How often are hydrostatic test done on scuba bottles?

A

5 years

29
Q

What triggers a vip?

A
  • every 12 months
  • when water or particulate is expected
30
Q

What triggers a vip?

A
  • every 12 months
  • when water or particulate is expected
31
Q

How many pieces of equipment are required for scuba diving and what are they?

A
  • 10
  • knife, mask, BCA, SCUBA, watch, depth gauge, weights, fins, octopus, and pressure gauge.
32
Q

What is required when diving in currents greater then 1 knot?

A

-tending line and weights.

33
Q

What is the minimum capacity scuba bottle authorized for primary air source?

A
  • 50 cubic feet
34
Q

What are suitable materials to make life lines from?

A

Nylon, Dacron, Polypropylene

35
Q

What are three types of life lines?

A

Buddy Line, foot line, tending line

36
Q

What is the definition of exceptional exposure?

A

When the risk of DCS and O2 toxicity and exposure to elements is greater then a normal dive. Requires approval with OPNAVINST 3150.27.

37
Q

What’s the proper ascent rate?

A

30fsw or 20-40fsw

38
Q

What do you do if your ascent rate is too fast?

A

Descend a couple feet and resume proper rate.

39
Q

What chapter in the dive manual covers ORM?

A

Chapter 6

40
Q

What chapter covers SCUBA diving?

A

Chapter 7

41
Q

What chapter covers ice water diving?

A

Chapter 11

42
Q

What are the DCS type 2 symptoms?

A

Neurological, inner ear staggers, cardio-pulmonary chokes.

43
Q

At what depth will nitrogen narcosis likely begin?

A
  • 130fsw
  • prominent at 200fsw
44
Q

What appendix for sonar distance?

A
  • appendix 1A

Chamber SUP (2 decks)

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