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UWSH MANUAL > UWSH Board > Flashcards

UWSH Board Flashcards

1
Q

What are the 3 types of inspections?

A

Type 1 - non system specific non invasive
Type 2 - system specific non invasive
Type 3 - system specific invasive

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2
Q

What company makes the rubber for the sonar domes and their patches?

A

BF Goodrich

HP2 Elastilock

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3
Q

What are the 3 types of propellers?

A

Fixed
Built Up
CPP

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4
Q

What is an appendage? Name at least 4 appendages on a DDG?

A

Something that protrudes from the hull underwater.

Strut
Rod meter
Sonar Dome
Scoops

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5
Q

Where would you look for info on propellers?

A

Chapter 3 - Propellers

Chapter 12 - CPP

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6
Q

Where is the suction and pressure face of a propeller?

A

Suction face is forward

Pressure face is aft

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7
Q

What is the significance of PDR-40?

A

PDR-40 is soft blistering caused by corrosion or rusting in the hulls metal leading to the development of gas bubbles.

*The significance is that the hull itself, not just the paint, is showing damage.

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8
Q

What is the MFR Scale?

A

The Marine Fouling Rate is a
0-100 scale in increment of 10

0-30 : slime and sea grass
40-90 : hard growth, tube worms, oysters
100 : composite

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9
Q

What are the types of DC Plugs? Which is preferred?

A

Wooden and Mechanical

Mechanical is preferred because there is no swelling

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10
Q

What are the distance requirements for active SONAR?

A

Helmeted - 3000yds moving into divers comfort

Unhooded - 1000yds moving into divers comfort

Hooded - 600yds moving into divers comfort

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11
Q

What are the 3 types of 688 Submarines?

A

1st Flight = fairwaters, no VLS
2nd Flight = fairwaters, VLS
688i = Bowplanes , VLS

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12
Q

What are the prop holes filled with prior to reinstallion?

A

Hydro Lube

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13
Q

What temperature does epoxy fail to cure?

A

50 degrees

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14
Q

What type of hydraulic fluid do we use and what are the operating ranges?

A

Houghton PR 1192 Petroleum Base

80-120 normal
140 max

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15
Q

What is the purpose of the masker emitter belts and where are they located?

A

They mask the acoustic signature of the ships and are located forward of main machinery spaces on the ship.

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16
Q

What are the rules for diving on an active suction?

A

Considered an emergency repair and is authorized by the CO or both RA and tended vessels.

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17
Q

What are the stave bearings made out of?

A

Synthetic rubber strips, either metallic backed (class I) or non-metallic backed (class III)

18
Q

What DDG’s are honored in NSE?

A 
SAMSON
KIDD
RALPH JOHNSON
MOMSEN 
GRIDLEY
19
Q

What are the requirements of splashing standby diver as a working diver?

A
  1. No-D dive of 60’ or less
  2. Same job and location
  3. The work area shall be determined to be free of hazards by red diver
  4. UWSH or UCT work. Salvage not authorized.
  5. The standby diver may deploy outside an enclosed or confined space to tend the working divers.
20
Q

What chapter is seachest repairs in?

A

S0600-AA-PRO-150 UWSH Manual Chapter 15 protection sleeves and seachests

21
Q

What is the difference between summer and winter bintsuke?

A

More tallow and rosin

22
Q

How do you know the ICCP is active?

A

The reference cell will be emitting small bubbles

23
Q

What are the types of underwater welding used in Navy Diving?

A

Shielded Metal Arc

24
Q

What stave bearing jobs are performed on surface ships?

A

Level 2 Gross damage and fouling inspection, removal and installing, cleaning

25
Q

What are the two grades of foam we use for cofferdams?

A

Type 1: 35 feet or shallower

Type 2: 36 feet or deeper

26
Q

What is a SPM propellor called?

A

Cortnozzle

27
Q

Explain the paint deterioration scale?

A

Paint Deterioration Rate (PDR) scale is a rating system of paint deterioration from 10-100 in increments of 10

28
Q

What is the Rupert Scale and how is it used in comparing roughness?

A

Used to measure the roughness of the propeller after cleaning and polishing. The diver compares the blade roughness with with his hand until a match is made.

29
Q

What is the difference between full hull cleaning and interim cleaning?

A

Full cleaning is the entire hull and interim cleaning refers to the cleaning of propellers, shafts and portions of the hull (running gear)

30
Q

What is a GFI?

A

Ground Fault Interrupt

31
Q

When is a GFI required?

A

When line voltage is above 7.5 VAC or 30 VDC

32
Q

What are the UWSH Chapters?

A
  1. Propellers
  2. Auxiliary Propulsion Unit
  3. Masker Emitter Belt
  4. NDT
  5. Secondary Propulsion Motor
  6. Sonar Domes
  7. Diver Tools
  8. Controllable Pitch Propellers
  9. Shaft Lamination
  10. Protection Sleeves
  11. Cofferdams
  12. Inspections
  13. Propulsion Bearings
  14. ICCP
  15. Painting and Fairing Compounds
  16. Fin Stabilizer
  17. Pollution Prevention
  18. Sub Procedures
33
Q

What are the 3 types of props?

A
  1. Solid (monobloc)
  2. Built-Up
  3. CPP
34
Q

What is an APU?

A

Auxiliary Propulsion Unit

35
Q

What is a SPM and what is it used for?

A

Secondary Propulsion Motor

Fine movements

36
Q

Max Protrusion of DC Plugs?

A

3-4 inches

37
Q

What is a cofferdam?

A

Any plug, patch or dry chamber installed externally to the hull of the ship or sub below the waterline.

38
Q

What is DFT?

A

Dry Film Thickness

39
Q

What are 3 types of rudders?

A
  1. Balanced
  2. Semi-Balanced
  3. Non-Balanced
40
Q

What are 6 types of anchors?

A
  1. NAVMOOR
  2. STATO
  3. EELLS
  4. LWT
  5. DANFORTH
  6. NAVY STOCKLESS
41
Q

What FR constitutes a prop cleaning?

A

FR 30

UWSH MANUAL (4 decks)

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