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BM advancement > Wet Well Operations > Flashcards

Wet Well Operations Flashcards

1
Q

Where may wet well operations take place?

A

Pier, side at anchor or underway

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2
Q

What does well deck ballasting and de-ballasting and craft launching and retrieval operations require?

A

A high degree of coordination and precision, leaving little room for personnel error or equipment failure.

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3
Q

Who must ensure that assigned safety observers are present throughout well deck operation: and are qualified in the position they are observing?

A

The Well Deck Officers

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4
Q

What may any team member use to indicate an emergency or developing unsafe condition?

A

Their life jacket whistle

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5
Q

What manual address safety precautions for conducting LCAC operations?

A

THe LCAC Safe Engineering and Operations (SEAOPS) Manual

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6
Q

What color helmets and life jackets will safety observers wear?

A

White, if available

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7
Q

For general well deck safety, what should be given to all assigned personnel concerning the upcoming evolution?

A

A thorough safety and operations brief, specifying their duties and responsibilities and applicable safety precautions

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8
Q

For general Well Deck safety, what constitutes proper battle dress?

A

An authorized personal flotation device with a whistle and light, protective headgear, hearing protection as appropriate, long sleeve shirt, trousers tucked into socks or boots and steel-toed foot gear

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9
Q

What color helmets and life vests does the Petty Officer in Charge and Ramp Marshall wear for ease of identification?

A

Yellow helmets and yellow auto inflated MK-1 life vests.

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10
Q

What is the normal ships ventilation plan for all well deck ventilation blowers during well deck operations?

A

Ensure they are operating for 30 minutes prior to commencement of, during and and 30 minutes after securing craft/vehicle handling operation

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11
Q

What is eliminated by the use of standard terminology and proper phone procedures when communicating between control stations?

A

Confusion and ambiguity even in the most stressful and difficult situations

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12
Q

Who must approve short-cuts for use in high-volume operation or short-notice evolutions?

A

The Conning Officer

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13
Q

How are fork trucks to climb ramps in order to afford better control, visibility and more power?

A

Fork trucks will climl all ramps driving forward and drive down all ramps in reverse whenever feasible

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14
Q

How should all material handling equipment be secured when the operator is not with the equipment?

A

With brakes and lashing

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15
Q

Coordinated flight and well deck operations are authorized for what class ships?

A

LHD, LHA, LPD4 LSD 41 and LSD 49 classes, but not for LSD 36 class

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16
Q

How should all personnel in assault craft be dressed?

A

In battle dress and wear authorized personal flotation devices

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17
Q

How far should safety observers and line captains ensue line handlers tend lines away cleats and T-bitts?

A

A minimum of 18 inches away from cleats and 24 inches from T-bitts

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18
Q

What must landing craft do pior to entering or operating in the well?

A

Lower masts, radar and radio antenna and light posts and dog all watertight doors/hatches

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19
Q

Under no condition shall the external draft of the ship aft be permitted t9 exceed what point?

A

Where sea water can rise through the ballast tank vent valves and into the vent air piping

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20
Q

What does effective ballasting enable?

A

The efficient and safe embarkation or launch of LCUs, LCMs, amphibious vehicles or LCACs

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21
Q

What is the clean ballast system design and normally used for?

A

To ballast and deballast ships to increase or decrease draft, list, and trim. Primarily for wet well operations, it also supports ballasting for stability and damage control

22
Q

In general, what is the normal ballasting procedure?

A

It is to gravity flood ballast tanks below the third deck and fill the ballast tanks above the third deck (if installed) using firemain. The well deck is flooded by opening the stern gate and well deck drains when the deck is below sea level

23
Q

What is the normal de-ballasting procedure?

A

To gravity drain the ballast tanks above the third deck and to empty the tanks below the third deck by pumping eductors or blowing them clear of water with low pressure air

24
Q

When ballasting, what is phase 1 operating condition dependent on?

A

Quantities of cargo, fuel, ammunition, water, supplies and troops embarked. This condition is also referred to as steaming draft.

25
Q

What is phase 2 ballasted condition dependent on?

A

The ship class and the evolution being conducted but in general is sufficient to operate all types of landing craft including LCU

26
Q

What does the term steep wedge refer to?

A

A ballasted condition which provides a dry well forward and eight feet of water at the sill

27
Q

What is a steep wedge useful for?

A

For conducting limited wet well operations while protecting cargo or vehicles in the forward section of the well deck from salt water damage

28
Q

Who should be continually informed of the progress and status of well deck operations?

A

The Commanding Officer, via debark control

29
Q

What requirement must all ships capable of ballasting have during ballasting operations?

A

They must have a comprehensive ballast bill which defines personnel assignments and responsibilities, equipment and procedures, communications procedures and precautions

30
Q

Who will have overall control of the ballasting operations?

A

The WDCO, with the Ballasting Officer reporting directly to the WDCO for proper ballast control

31
Q

How will normal communications be maintain during ballasting operations?

A

Sounds-powered telephone. Other wireless systems (HYDRA) may be used if installed.

32
Q

Who is the officer in charge of embark/debark operations?

A

Debark Control Officer: normally the ship’s Executive Officer, unless another officer has beeb appointed in writing by the Commanding Officer.

33
Q

During well deck operations, who is responsible for the safe handling, embarkation and debarkation of all boats and vehicles in the well deck?

A

The Well Deck Control Officer, normally the First Lieutenant. He reports directly to the Debark Control Officer

34
Q

Who supervises the actual ballasting/deballasting operations and provides the wet well conditions?

A

The Ballasting Officer, normally the Damage Control Assistant (DCA) and is stationed in ballast control

35
Q

Who must maintain direct communications with the WDCO and keep the WDCO advised of the approximate time required for the various ballasting operations?

A

The Ballasting Officer

36
Q

Who will obtain permission from the Commanding Officer to commence ballasting operations?

A

The OOD

37
Q

Who must keep all stations aware of the ship’s maneuvers or evolutions which could affect ballasting operations and embarkation/debarkation of the vehicles and craft?

A

The OOD

38
Q

What does the stern gate provide?

A

Ready access to the well deck during amphibious operations and protects the contents of the well deck from wind and weather

39
Q

How is the stern gate raised and lowered?

A

By hydraulically-operated equipment

40
Q

What does the stern gate power unit generally consist of?

A

A reservoir, two main pumps for use in the event of power loss and a hydraulic manifold (valve block) with directional, check and counterbalance valves

41
Q

What is the purposes of the valve block in the power unit used to raise the stern gate?

A

To control the direction of fluid flow to the hydraulic cylinders for opening and closing the gate and to maintain control of the gate when it is full or partially open and is being acted upon by sea forces.

42
Q

During opening and closing operations of the stern gate, how is the valve block operated?

A

By a remote control receiver, which receives a signal from the remote control transmitter, located at the control station.

43
Q

Why is an auxillary hydraulic pump provided for stern gate operation?

A

For emergency operation of the stern gate when electrical power is lost of both main pumps are inoperable.

44
Q

During well deck operations, what does the red signal flag or wand indicate?

A

It is hand held motionless indication a red or unready well.

45
Q

What color wands shall be used in conjunction with the traffic control lights during night or foul weather operations in the well deck?

A

Red and green signal wands

46
Q

How is loading and unloading of vehicles and cargo from landing craft and controlling the movement of AAVs and vehicles accomplished?

A

Red and green signal

47
Q

When are amber lighted wands used for controlling craft in the well deck?

A

At night or in reduced visibility

48
Q

What does the LHA 1 class utilize as a primary circuit and as a secondary system?

A

the IVCS system as a primary and sound powered telephones as a secondary.

49
Q

Why is clear and concise communications between control stations paramount?

A

For safe well deck operations and vital during emergencies

50
Q

What is the movement to or stowage of assault craft and amphibious vehicles in the well deck called?

A

Well deck loading and it is accomplished while the ship is pier side, in a protected anchorage or underway

BM advancement (14 decks)

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