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ESWS > BALLAST CONTROL & CHT > Flashcards

BALLAST CONTROL & CHT Flashcards

1
Q

How are the sea valves for the 5th and 6th deck tanks opened?

A

Hydraulic pressure from the HPU’s

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2
Q

Where are the HPU’s located?

A

Reefer decks; main 1 escape or above #6 A/C

Under post office

Repair 3’s p-way

STBD stern gate operating room

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3
Q

How many eddy pumps do we have?

A

2 (main CHT)

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4
Q

How many macerator pumps do we have onboard?

A

8

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5
Q

Why do we ballast?

A 
Heavy seas
Amphib OPs
Low bridges
When we run aground
List correction
Counter battle damage
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6
Q

How many CHT tanks do we have?

A

7
Main CHT
Port & STBD ejection
Main 1 & 2, Aux 1 & 2

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7
Q

How are the 5th & 6th deck tanks filled and drained?

A

Filled by gravity

Drained by DBAC

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8
Q

Where is ballast control located?

A

By STBD side quarterdeck

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9
Q

What gas are we most concerned with dealing with CHT?

A

H2’s

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10
Q

When do we use the 3 modes for CHT?

A

Inport - while pier side

Transit - within 3 NM

At sea - outside of 3 NM

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11
Q

How many ballast tanks do we have in total?

A

87

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12
Q

Why do we de-ballast?

A

Shallow water
Amphib OPs
Better fuel consumption

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13
Q

How many 5th & 6th deck tanks do we have?

A

69

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14
Q

How many modes does CHT have?

A

3

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15
Q

What does IDLH stand for?

A

Imminent Danger to Life & Health

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16
Q

How many 3rd deck pre-ballast tanks do we have?

A

18

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17
Q

What is grey water?

A

Sink
Shower
Deck drains

18
Q

How many HPU’s do we have?

A

5

19
Q

What are the 3 modes of CHT?

A

Inport
Transit
At Sea

20
Q

How deep do we need to be at the sill to take in a LCU?

A

8 feet

21
Q

What does the red & yellow lights indicate on the H2’s sensors?

A

Yellow - 8PPM H2’s

Red - 20PPM H2’s

22
Q

How many gallons does each tank hold?

A

Main - 13,770 gallons

Port & STBD - 650 gallons

Main space tanks - 15 gallons

23
Q

What is ballasting?

A

The controlled sinking of the ship

24
Q

What is de-ballasting?

A

The controlled raising of the ships draft

25
Q

What is black water?

A

Anything from the urinal or toilet

26
Q

How deep do we need to be at the sill to take on an LCAC?

A

0-6 inches

27
Q

What are the macerator pumps rated at and what do they do?

A

40 - 60 gallons per minute

Chop up debris into 1/4 inch pieces

28
Q

What is some of the gear we use for a CHT clean up?

A 
Tyvek suit - Poopy suit
firefighting boots
Gloves
Face shield
SCBA
29
Q

What are the eddy pumps rated at?

A

300 gallons per minute

30
Q

How deep do we need to be at the sill in order to recover an AAV?

A

4-6 feet

31
Q

How deep do we need to be at the sill in order to launch an AAV?

A

1 foot

32
Q

Sewage receiving station number 1

A

(6-73-3-E)
Sewage receiving tank #1 - 281 gallons

Macerator pump #3

Sump pump #2

33
Q

Sewage receiving station number 2

A

(3-113-6-E)
Sewage receiving tank #2 - 295 gallons

Macerator pumps #1 & 2

Sump pump #1

34
Q

Sewage pump room number 1

A

(6-39-0-E)
Sewage tank #1 - 26,162 gallons

Discharge pumps #1 & 2 - 150gpm @ 39PSI

Aspirator pumps #1 & 2 - 240gpm @ 13PSI

Comminutor - 8 in 1d

35
Q

List & trim

A

List - degree from port - STBD

Trim - Fwd to Aft

*5 degrees is abnormal

both read from clinometer

36
Q

Draft

A

How deep the ship sits in the water

37
Q

Levels of H2’s

A

Yellow - 10 PPM’s

Red - 50 PPM’s

At 1000 - considered IDLH & be absorbed through the skin

38
Q

Sewage clean up

A

Detergent

PPE;

  • disposable gloves
  • goggles
  • face shield
  • rubber boots
  • laundry bag
  • impermeable rubber gloves
39
Q

4 DBACs onboard

A

1 & 2 - Fwd A/C

3 & 4 - Aft DBAC

8-12 PSI to blow tank

40
Q

The bullet

A

Service tank to HPU

Located horseshoe P-way STBD side

41
Q

HPUs operate

A

FM fill
Sea Valve
Gravity drain valves

42
Q

Sewage pump room number 2

A

(5.5-76-1-E)
Sewage tank #2 - 27,496 gallons

Discharge pumps #3 & 4 - 150gpm @ 39 PSI

Aspirator pumps #3 & 4 - 240gpm @ 13 PSI

Comminutor - 8 in 1d

ESWS (11 decks)

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