M, A & E Flashcards
What does LPAC stand for?
How many and where are they?
- Low pressure air compressor
- 3
- # 1 Lpac is in AUX 1 and #2 and #3 is in AUX 2
What type of Lpac’s are onboard?
What are the modes and pressure ranges?
What’s the purpose of the Lpac?
- Rix star 200, water cool, oil free, screw type compressor
- Lead 115-125 psi, Lag 110-120 psi, and stby 105-115psi
- To provide vital and non-vital air
what does non vital low pressure air provide to?
what does vital low pressure air provide to?
- Pneumatic tools, ships laundry
- MRG Clutch and brake, Raders
Where are the potable water pumps located on board?
Where are the potable water tanks located?
Where are the potable water raisers located?
- # 1A and #1B potable water pumps are in AUX-1
- Underneath the gym
- Port smoke deck and stbd side of stairway to heaven
How many fire pumps are on board?
Where are they?
What is the psi and gallon per minute of the F/P?
- 7
- # 1 F/P is in AUX 1, #2 is in Main-1, #3 is in main 2, #4 and #5 are in aux 2, #6 and #7 are in the fire pump room
- 170 psi and 1000 gpm
How many ASW pumps are onboard?
Where are they?
What equipment do they provide to?
- Auxiliary sea water
- 4
- # 1 is in Aux 1, #2 is in Main 1, #3 is in Main 2, and #4 is in Aux 2
- Hpac’s, Lpac’s, A/C’s, stern tube cooling, and Debac’s
How many SSDG’s are onboard and where?
- Ship Service Diesel Generator
- 4
- # 1 and 2 are in AUX 1, #3 and 4 are in AUX 2
What are the SSDG characteristics?
- Fairbank Morris
- 12 cylinder opposed 24 piston
- 900 RPM
- 1377 brake horse power
- 450 volt
- 60 hertz
- 2566 amps
- 1600 Kilowatz
- Uses F-76 fuel oil
- Uses SAE 40 for lube oil
How many MPDE’s are onboard?
Where are they?
- Main propulsion diesel engines
- 4 total
- # 1A and 1B are in main 1
- # 2A and 2B are in main 2
What are the characteristics of the MPDE’s?
- Colt Pielsick
- 16 cylinders
- V block configuration
- twin turbo
- 520 RPM
- 8500 brake horse power
- uses F-76 for fuel oil
- SAE 40 for lube oil
How many RO’s are onboard and where?
- Reverse osmosis
- 2 total
- # 1 RO is in main 1
- # 2 RO is in main 2
How much water does an RO make a day?
- 36000 gallons
How many HPAC’s are onboard and where?
What is the purpose of the HPAC?
- High Pressure Air Compressor
- total of 2
- # 1 HPAC is in main 1
- # 2 HPAC is in main 2
- Provide vital air
What type of HPAC is onboard?
What PSI does the HPAC start and stop?
What does vital high pressure air provide air to?
- Rix 5 stage swash-plate compressor
- Starts at 2700 psi +/- 50
- Stops at 3000 psi
- Air start for MPDE’s and SSDG’s, SCBA recharging station
How many MRG’s are onboard and where?
Who manufactures the MRG?
- 2
- # 1 is in main 1
- # 2 is in main 2
- Philadelphia
What is the purpose of the MRG?
What is the ratio of the MRG?
- To convert high speed low torque of the MPDE into low speed high torque of the shaft
- 3.15:1
What is the purpose of SAE-40 LOP?
How many SAE-40 LOP’s are onboard and where?
- Lube oil purifier
- To purify MPDE’s lube oil
- 2 total
- # 1 LOP is in main 1
- # 2 LOP is in main 2
What’s the Purpose of the 2190 LOP?
- To purify CPP and MRRG lube oil
2190 lube oil accts as _______ for the MRG system
- Lubricating oil
2190 lube oil provides ________ for the CPP system
- Hydraulic oil
What’s the purpose of the HOPM
- Hydraulic Oil Power Module
- Provide control oil to the distrubution box (OD Box)
What’s the purpose of the OD box?
- To use control oil to direct flow of power oil to change angle of the propellers
how many line shaft bearings are there? And where?
- Total of 9
- 1-1 LSB is in intermediate shaft alley but owned by main 1
- 1-2 and 1-3 LSB are in main 2
- 1-4 is in AUX 2
- 1-5 and 1-6 are in starboard shaft alley
- 2-1 is in AUX 2
- 2-2 and 2-3 are in Port shaft alley
What is the purpose of the LSB?
- Support the weight of the shaft
- Cool the shaft and absorb radial thrust
What are the watch standers in main control?
- Eoow
- Pacc
- Epcc
What are the types of air pressure reducing stations?
Where are they?
- 3000/425, 3000/250, 3000/200, and 3000/80
- 3000/425, 3000/200, and 3000/80 are in main 1 and 2
- 3000/250 are in AUX 1 and 2
What is the purpose of the stern tube seal?
- To allow the shaft to exit the ship and prevent flooding
What is the purpose of the strut bearing?
- To support the shaft outside the skin of the ship
What is the purpose of the Kingsbury thrust bearing?
- Absorb axial thrust of the shaft too the hull of the ship
What is the primary purpose of the A/C’s
- Remove heat load from machinery I.E electrical equipment
What is the purpose of the Reefer’s?
- Cool food
How many A/C’s do we have onboard?
- 6
What are the tonnage of the 1-5 A/C’s?
- 125 tons
How many refrigerant plants are onboard?
- 2
What is the tonnage of the reefer plants?
- 3.5 tons
How many types of refrigerants do we have onboard?
- 2
What type of refrigerant do A/C’s 1-5 use?
- R-236FA
What type of refrigerant do #6 A/C use?
- R-1243A
What type of refrigerant do the reefer plants use?
- R-1243A
how many places can you steer the ship from?
- 3
What are the locations you can steer the ship from?
- AFT steering, bridge, and main control
Who mans AFT steering?
- Officer, A-gang member, electrician, and helmsman
How many ways can you steer the ship in AFT steering?
- 3
What are the ways you can steer the ship in AFT steering?
- trick wheel, emergency hand pump, nut and ratchet
What type of oil do we use in the steering system?
- 2135
How many steering gear units are there?
- 2
What does HPU stand for?
- Hydraulic Power Unit
How many HPU’s are there?
- 5
What type of oil does the HPU use?
- 2110
What are the HPU’s used for?
- Used to open the hydraulic valves inside the ballast tanks
What does DBAC stand for?
- Deballast Air Compressor
How many DBAC’s do we have?
- 4
What are the DBAC’s used for?
- To raise the ship out of water
What is GCB? And what is it’s purpose?
- Generator Circuit Breaker, connects generator to the switchboards
How many switchboards do we have?
- 8
Where are the switchboards?
- 1&2 in AUX 1, 3&4 in Aux 2
What is BTB? And what is it’s purpose?
- Bus Tie Breaker, connects switchboards together or disconnects links
How may degaussing coils do we have?
- 4
What are the coils?
- M-coil (main coil)
- A-coil (Athwarthship coil)
- FIQI (Fosc’le induce and quarterdeck induce)
- FPQP (Fosc’le permanent and quarterdeck permanent)
Where is the remote degaussing console located?
- Pilot house
Where is the power supply located?
- Degaussing room (3-70-3-E)
Where is the main degaussing switchboard located?
- Aux 1 EOS (booth)
How are the A, M, FIQI, and FPQP wrapped around the ship?
- M around the waterline of the ship
- A FWD and AFT of the ship in a U shape
- FIQI, FPQP are in a figure 8 from fosc’le to quarterdeck
What is an SFC and what does it do?
- Static frequency Changer, converts 60hz to 400hz
What do we use 400Hz for?
- LCAC shore power, weapon systems, radars, ic gyro, & combat systems
Where is 1STC, 3STC-A and 3STC-B 400Hz located?
- 1STC by anchor windlass (01-11-4-Q)
- 3STC-A, 3STC-B aft of post office (1-74-3-L)
What is 1STC used for? What is 3STC-A and B used for?
- 1STC is service only
- 3STC-A is a swing STC can be used for LCACs and ship service
- 3STC-B only for LCAC shore power
Where are the 400hz switchboards located?
- 1SF foward STC room (01-11-4-Q)
- 2SF by IC gyro (03-54-1-Q)
- 3SF Aft STC room (1-74-3-L)
What is EPCC?
- Electrical Plant Control Console
What is ABT and what does it do?
- Automatic bus transfer, rotates from normal to alternate power for vital equipment
What is MBT and it’s purpose?
- Manual Bus Transfer, manual transfer load from normal to alternate power for semi-vital equipment
What is an example of a vital load?
- Anything feed from an ABT
What is an example of non-vital load?
- Equipment that does not have two sources of power
What is PMP and how many do we have?
- power management platforms, 4
How many shore power cables do we have, and how many receptacles?
- 9 cables, 12 receptacles
How many amps is 1 shore power cable rated at?
- 400Amps (same as receptacles)
Where is the shore power riser located?
- Port side boat deck
How many shore power breakers are there in AUX 1 and AUX 2?
- Aux 1 has 8 breakers
- Aux 2 has 4 breakers
