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DSWS > DLSS, Mk. III > Flashcards

DLSS, Mk. III Flashcards

0
Q

What is the floodable volume of a LWDS Flask?

A

0.935 ft cubed.

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1
Q

Where are the relief valves located on the Mk. III?

A

Control Console (ALP-V-308), Volume Tank (ALP-V-207), HP Flasks (AHP-V-505,506,507), and Roof Rack Assembly (AHP-V-603).

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2
Q

How many standard cubic feet are contained in a single flask at 3,000 psi?

A

191 scf

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3
Q

What system are components labeled under the 400 series a part of on the LWDS?

A

Air Compressor Assy.

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4
Q

What system is a valve in the 500 series from?

A

HP Air Flask Assy.

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5
Q

What system is a valve in the 200 series a part of?

A

The Volume Tank Assy.

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6
Q

What system is a valve in the 300 series a part of?

A

The Control Console Assy.

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7
Q

What system is a hose in the 100 series a part of?

A

Deck Hose Assy.

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8
Q

What system is a valve in the 600 series a part of?

A

The Roof Rack Assy.

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9
Q

What is the minimum number of primary HP air racks for a Mk. III, Config. 2?

A

3.

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10
Q

What is the MMP for a KM-37 Diver diving to 60FSW? Mk. 21 At the same depth?

A

165psi for KM-37, 120psi for Mk. 21.

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11
Q

What are the components of the MK. III system?

A

Volume Tank Assembly, Control Console Assembly, Flask Rack Assemblies(primary and secondary), Roof Rack Assembly, and the deck hose assembly.

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12
Q

What is a DFS, and what DFSs do we have on the Dive Boat?

A

Departure From Specification. DS01 has two DFS, one for the modified racks, and another for the charging assembly (no roof rack).

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13
Q

What is the difference between the Mk. III Mod 0 and the Mk. III Mod 1?

A

The Mk. III Mod 1 is identical to the Mk. III Mod 0, except that the control console and volume tank have been modified to operate at 5000psi for use with the ASRA.

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14
Q

What is the difference between the Mk. III Config. 2 and the Mk. III Config. 3?

A

The Mk. III Config 3 has two secondary supply racks as opposed to one with the Config. 2.

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15
Q

What are the flow requirements for divers air supply systems?

A

Over bottom Pressure will be between 135-165psi. If the system can’t support 135psi over bottom pressure, using an over bottom pressure of 90psi is acceptable when diving shallower than 60FSW. For dives between 130-190FSW, over bottom pressure shall be between 165-225psi.

16
Q

What are the four methods of mixing gas?

A

Mixing by partial pressure, mixing by weight, mixing by volume, and continuous flow gas mixing.

17
Q

What is the minimum allowable moisture for divers compressed air?

A

0.02 mg/L

18
Q

What is the allowable oxygen range for divers compressed air?

A

20-22% Oxygen

19
Q

What is the max allowable Carbon dioxide in divers compressed air by volume?

A

500ppm

20
Q

What is the floodable volume and area is cubic feet of the volume tank?

A

30 gallons, 4 cubic feet.

21
Q

What are the relief set pressures for the Mk. III Mod 0?

A

10% over working pressure of 3000psi, or 3300psi.

22
Q

What are the temperature parameters for the Mk. III?

A

0-140 degrees F

23
Q

What is the periodicity for the relief valves?

A

Every 3 years or if suspect.

24
Q

How often so flasks need to be hydrostatically tested?

A

Every five years, or if suspect.

25
Q

When do you need to take gas air samples?

A

Every six months between 4-8 months, after a system overhaul, and if suspected of contaminated air.

26
Q

What is the purpose of a 104 hose?

A

Connect compressor to volume tank.

27
Q

What is the purpose of a 102 hose?

A

Connect the hp air supply to the volume tank/console.

28
Q

What is the purpose of a 105 hose?

A

To connect flask racks in the hp air supply.

29
Q

True/false- A 103 deck hose connects the console to the volume tank.

A

False. 103 hoses do not exist.

30
Q

What is the purpose of the 101 deck hose?

A

To connect the volume tank to the console.

31
Q

Who is the SCA for the Mk. III LWDS?

A

NAVSEA

32
Q

What is required for doing a VIP on the volume tank?

A

Rec, Applicable MRC

DSWS (5 decks)

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