M-DIV Flashcards
How many main reduction gears are onboard and where are they located?
2
Main 1 & 2
How many SAE-40 LOPs are onboard and where?
2
Main 1 & 2
How many ships service diesel generators are onboard and where?
4
Aux 1 & 2
What are the modes and pressure ranges?
STBY - 105-115 PSI
LAG - 110-120 PSI
LEAD - 115-125 PSI
What are the locations of the LPAC?
Aux 1
Aux 2
How many HPACs are onboard and where?
2
Main 1 & 2
What does non vital low pressure air provide air to?
Pneumatic tools
Ships laundry
What’s the purpose of the LPACs?
Provide vital and non-vital air
What PSI does the HPAC start and stop?
2700 start
3000 stop
How many fire pumps are onboard?
7
2190 lube oil acts as _____ for the MRG system?
Lubricating oil
What’s the purpose of the MRG?
To convert high speed low torque of the MPDE to low speed high torque of the shaft
How much water does a RO make a day?
36,000 gallons
What does LPAC stand for?
Low pressure air compressor
What are the characteristics of the MPDE’s?
Made by Colt Pielstick 16 cylinders V block configuration 4 stroke Twin turbo 520 rpm 8500 hp F-76 fuel oil SAE-40 for lube oil
What are the characteristics of the SSDGs?
Made by Fairbanks Morse 12 cylinder opposed piston 900 rpm 1377 hp 450 V 60 Hz 2566 amps 1600 Kw F-76 fuel oil SAE-40 lube oil
Where are the potable water tanks located?
Underneath the gym
Who manufactures the MRG?
Philadelphia
What is the purpose of the stern tube seal?
Allows the shaft to exit the ship and prevent flooding
What’s the purpose of the HPAC?
Provide vital air
What does vital high pressure air provide air to?
Air start for MPDE’s, SSDG’s and SCBA recharging
What’s the ratio for the MRG?
3:15:1
How many main propulsion Diesel engines are onboard and where?
4
Main 1 & 2
What type of HPAC is onboard?
Rix 5 stage swash plate compressor
What is the purpose of the 2190 LOP?
To purify CPP & MRG lube oil
What’s the purpose of the OD box?
To use control oil to direct flow of power oil to change the angle of the propellers.
What’s the purpose of the SAE-40 lube oil purifiers (LOP)?
To purify MPDE’s lube oil
What is the purpose of the LSB?
Support the weight of the shaft,
Cool the shaft
Absorb radial thrust
Where are the potable water pumps located onboard?
1A & 1B potable water pumps are in Aux 1
Where are the potable water risers located?
Port side smoke deck
STBD side of stairway to heaven
What is the PSI and gallon per minute of the F/P?
170 PSI
1000 GPM
What type of LPACs are onboard?
Rix star 200, water cool, oil free, screw type compressor
What are the locations of the fire pumps?
1 - Aux 1 2 - Main 1 3 - Main 2 4 & 5 - Aux 2 6 & 7 - Fire pump room
What does vital low pressure air pride air to?
MRG clutch & brake, radars
What is the purpose of the Kingsbury thrust bearing?
Absorb axial thrust of the shaft to the hull of the ship
What equipment do the ASW pumps provide to?
HPACs DBAC’s LPAC’s Stern Tube Cooling A/C’s
2190 Lube oil provides ____for the CPP system?
Hydraulic oil
What are the watch standers positions in Main control?
EOOW
PACC
EPCC
How many auxiliary sea water pumps are onboard?
4
What are the locations of the ASW pumps?
1 - Main 1
2 - Aux 1
3 - Aux 2
4 - Main 2
What is the purpose of the strut bearing?
Support the shaft outside the skin of the ship
What’s the purpose of the Hydraulic Oil Power Module (HOPM)?
Provide control oil to the Oil Distribution Box
