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The International Regulations for Preventing Collisions at Sea (COLREGS) > LCU Info > Flashcards

LCU Info Flashcards

1
Q

Name 5 items of firefighting equipment located on the port and stbd catwalks of the LCU Mk. 10.

A

Hydrants
2” Hoses (Various)
Spray jet nozzles
FB5X Nozzle
FB5X Foam
Jalousie Flap Handles

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2
Q

State the first two actions necessary to contain a fire discovered below decks on the LCU Mk. 10.

A

Crash Stop Ventilation
Close vents and doors

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3
Q

Name the 5 watertight sections below the vehicle deck of the LCU.

A

Forward Jigger Space
Gyro Space/Store/Battery Room
Forward Engine Room
After Engine Room
Propulsor Space

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4
Q

How many fuel tanks are there on the LCU – what are their names and capacities?

A

Endurance Tank (8.8m3)
Forward Service Tank (5.3m3)
After Service Tank (5.3 m3)

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5
Q

Name the pump used to supply fuel to another vessel. Where is it located and from where can it be crash stopped?

A

Fuel Transfer Pump
Aft Engine Room
Wheelhouse Panel / Starboard Waist

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6
Q

How many Fresh Water tanks are there on the LCU Mk.10? Name them and state their capacities.

A

Domestic Fresh Water 2m3
Cargo Fresh Water 10m3

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7
Q

Name the pump used to transfer Fresh Water to another vessel and state its location.

A

Cargo Fresh Water Pump
Forward Engine Room (FER)

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8
Q

Where is the forward Hydraulic Power Pack located?

A

Port side Battery Compartment

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9
Q

Under normal operating conditions, the forward Hydraulic Power Pack supplies hydraulic pressure for what purpose?

A

To raise and lower the forward ramp.

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10
Q

State the three locations from where the forward ramp can be operated using the forward Hydraulic Power Pack.

A

Wheelhouse
Forward Jigger Space (centre of compartment)
Stbd Fwd Catwalk

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11
Q

What is the purpose of the hydraulic system gang-valves? Where are they located?

A

To cross connect the Fwd and Aft Hydraulic Power Packs
Forward gang-valves are on aft bulkhead of Fwd Hydraulic Plant compartment
Aft gang-valves are on the fwd bulkhead (to left of aft hydraulic power pack) in
Propulsor Space.

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12
Q

State the three main fluids to be checked before starting any diesel engine on the LCU Mk.10.

A

Oil Sump Level
Cooling Water Systems
Fuel System

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13
Q

Assuming it can be started, what checks have to be carried out before starting a main engine on the LCU Mk.10?

A

Oil Sump level (dipstick)
HT Water inlet and outlet valves open (check header tank level)
LT Water inlet and outlet valves open (check header tank level)
Fuel supply and return valves are open
Ensure Mini-Guard alarm panel is reset – press left, right then middle buttons
(Any 5 correct)

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14
Q

Having carried out pre-start checks (under supervision) start a main engine.

A

Ignition key turned to start position.
Reset Mini-Guard alarm (correct button arrangement)
Turn and hold ignition key to turn over engine. Release key when engine running.

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15
Q

With the engine running, take the throttle into manual (local) control and operate throttle assembly manually.

A

Undo knurled collar
Remove R-Clip
Move outer collar on throttle level assembly (above grey box stepper motor) to adjust
speed of engine – can be witnessed on local RPM gauge/change in engine note.

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16
Q

In Forward Engine Room (FER), identify the following:

A

100KW Generator and Starter Panel
100KW Switchboard
LP Air Compressor and Starter Panel
Ballast Pump and Starter Panel
Cargo Fresh Water Pump and Starter Panel

17
Q

What systems does the 100KW Generator usually supply?

A

Hydraulic Power Plants
Trace Heating
Bow Thruster
Aft gang-valves are on the fwd bulkhead in Propulsor Space.

18
Q

What is the purpose of the Linde Pump and how is it driven?

A

To provide hydraulic oil pressure to the steering motor on the propulsor.
Linde Pump is belt driven from the applicable engine.

19
Q

Point out the 100KW to 50KW Switchboard Inter-Connector Breaker switch

A

Lower front/centre of 100KW Switchboard

20
Q

In Aft Engine Room (AER), identify the following items of machinery.

A

50 KW Generator and Starter Panel
50KW Switchboard
Fixed Fire Pump and Starter Panel
Fuel Transfer Pump and Starter Panel
Port Engine

21
Q

What system do the 50 KW Generator normally supply?

A

Hotel services (general equipment)
Main Lighting
Ventilation

22
Q

Carry out pre-start checks (under supervision) on the 50KW Generator and start in local control.

A

Check oil level (dipstick) and coolant header tank (sight glass) levels
Check fuel inlet and return valve positions (open)
Check coolant system inlet and outlet valves (open)
Turn key to start position, press reset button to clear alarms and turn key through to
start generator.

23
Q

Under supervision, connect the 50KW Generator to the 50KW Switchboard and demonstrate how to reset the main breakers – including the three breakers
inside the 115V Distribution Panel and the Ventilation Breaker in the 50KW Switchboard.

A

Open Shore Supply Breaker and press 50KW breaker close button (brief darkness)
Reset three breakers on 115V Panel.
Reset Vent Breaker in 50KW Switchboard – inside left door of 50KW Switchboard
panel.

24
Q

Demonstrate how to take Schottel steering system into emergency control when control is lost from the Wheelhouse, but hydraulic power is still available.

A

Establish communications with Wheelhouse. (PRR or Voice Relay)
Switch from NORMAL to EMERGENCY in affected system control panel.
Operate steering using red/green button arrangement under control of Wheelhouse.

25
Q

Demonstrate how to take manual emergency steering of the Schottel steering system if the hydraulic steering system is compromised.

A

Remove red cap from keyway
Locate cylindrical keyway socket and fit to keyway on propulsor.
Locate and fit ratchet handle on top of keyway socket.
Open the hydraulic motor bypass valve
Use ratchet handle to move steering system under control of Wheelhouse.

26
Q

Which systems (under normal circumstances) is the Aft Hydraulic Power Pack used to supply hydraulic pressure to?

A

Aft Ramp
Kedge Winch
Mast Operations (raising/lowering)

27
Q

What would you use to enable the Aft Hydraulic Power Pack to operate the Forward Ramp?

A

Use cross-connection gang-valves in both Fwd and Aft compartments, set to the Aft Hydraulic Power Pack.

28
Q

How would you configure the cross-connection ganged valves correctly?

A

Check correct positioning of valves using bulkhead aide memoire tallies.

29
Q

Under supervision, in the Wheelhouse, demonstrate how to lower the Forward Ramp using the 100KW Generator. Return system back to normal configuration on completion of operation of the ramp. (100KW Generator should be in remote)

A

Start 100KW Generator on Wheelhouse Starter Panel.
Press the green ‘close’ button for the 100KW Breaker
Press ‘start pumps’ button on forward hydraulic control panel.
Press raise hooks button until ‘hooks off’ lamp illuminated.
Press lower ramp button to desired height.
Repeat sequence in reverse to raise ramp and return to stand-by state.

30
Q

During kedge winch operations, all hydraulic power is lost across both forward
and aft systems. What is the most likely cause of the failure of power to the
system?

A

Emergency stop button on Kedge Deck/rear of Wheelhouse

31
Q

Under supervision, demonstrate how to lower the mast using the aft hydraulic power pack. What precautions should be taken when moving the mast?

A

All personnel clear of range of mast movement.
Halyards undone and clear of fouling risk.
Clansman/Bowman aerial (if fitted) lowered if moving ramp to forward.

32
Q

Using the Mimic Panel in the Wheelhouse, demonstrate how to set the Ballast Pump to take water from the sea and discharge overboard.

A

Select ‘Main’ on Mimic panel (will show ballast system overview)
Open valve BL 010 (sea suction valve) will cycle through yellow to green when open.
Open valve BL 019 (discharge overboard valve)
Check that all other valves remain closed – indicated in red.
Start Ballast Pump (button on bottom of screen) – water will discharge port side.

33
Q

Demonstrate how to connect the Ballast System to supply the fire-main system.

A

Confirm that manual valve on starboard waist is open.
Press ‘Main’ on Mimic screen in Wheelhouse (opens ballast system overview)
Open BL010 (sea suction valve)
Ensure that BL019 (Discharge Overboard valve is closed)
Crack open one hydrant valve (most commonly hydrant behind wheelhouse on kedge deck)
Start Ballast Pump on Mimic Panel.
Check for discharge from opened hydrant valve on kedge deck.

34
Q

With the Ballast Pump running from sea-to-sea, demonstrate how to remove water from any tank – assuming the system is set up correctly.

A

Open the suction/filling valve for the applicable tank to be emptied.
Close valve BL010 (sea suction valve).
Leave valve BL019 (Discharge Overboard valve) open
Observe change in level (dropping) on screen for tank being emptied.

The International Regulations for Preventing Collisions at Sea (COLREGS) (9 decks)

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