ENGINEERING Flashcards
What’s the purpose of the MRG and Shafting?
Convert high speed low torque to low speed high torque
State the description of the MRG
Double input Single output Double reduction Double helical Locked train Articulated
What’s the connection between the MRG and Propulsion Gas Turbine?
Turbine to MRG. High speed flexible coupling shaft
What’s the purpose of break mode?
Used for running aground. Stops everything real quick
What kind of thrust bearings do we have?
Kingsbury (most important)
What’s the purpose of main thrust bearings?
Makes us go forward. Absorbs axel thrust and disburses it through the hull.
Where are the main thrust bearing located?
One in each shaft
Where are the line shafts located?
STB- Main 2 and Shaft Alley
PORT- Shaft Alley
What’s the purpose of line shaft bearing?
Absorbs thrust
What’s the purpose of strut bearing?
Supports shaft outside skin of ship.
What is strut bearing lubed by?
Seawater
Where is the Stern Tube Assemblys located?
Shaft alley
What’s the purpose of the stern tube assembly?
Goes into the ship. Keeps water out
What is the Lube for MRG?
2190
What does CRP stand for?
Controllable Reversible Propeller
What’s the purpose of CRP system?
Allows ship to go forwards and backwards
What is HOPM?
Hydraulic Oil Power Module
What’s the purpose of HOPM?
Creates control oil and power oil
How many pumps are there for CRP Pumps?
2
Where are the CRP pumps?
Attached to MRG and Electric Pump
After oil goes to HOPM, where does it go next?
Oil Distribution Box
What’s the purpose of Oil Distribution Box?
Control oil tells power oil what to do
Why are the shafts hollow?
So Oil can get to and from the blades
What’s the purpose of CRP Head Tanks?
Keeps positive pressure in oil system
What oil does CRP use?
2190
What’s the purpose of Emergency Hydraulic Pump?
Head pitch at 130% for blades
Shafts and blades affect what?
Speed of ship
What’s the function of start air?
Start GTMs
What’s the purpose of Prairie Air?
Masks sound of propellers
What’s the purpose of Anti Icing Air?
Keeps from freezing in 40 degree weather at 70% humidity
What’s the purpose of Masker Air?
Masks hull of ship
Where does bleed air come from?
14th stage GTG and 16th stage GTM
What does bleed air split into? SPAM
Start Air
Prairie Air
Anti Icing Air
Masker Air
Where are PACS located?
CCS
Where are SCUs located?
Engine Room
What does PACs and SCUs do?
Mask hull of ship
How many Masker Addmitter Rings do we have?
3
What does Masker Addmitter Rings do?
Run around bottom of ship
Where are Masker Addmitter Rings located?
Main 1&2
Aux 1
What’s the purpose of Masker Addmitter Rings?
So nobody can hear us
Where can you steer the ship from?
Bridge and AFT Steering
How many ways can we steer the ship?
6
What are the 6 ways to steer ship?
BSU ASU LCU Electronic Emergency Hand Pump Ratchets
Where is BSU?
Bridge
Where is ASU?
Aft Steering
Where is LSU?
Aft Steering
Where is Electronic?
Aft Steering
Where is Emergency Hand Pump?
Aft Steering
What are the 5 methods to control steering?
Auto Pilot Computer Manual Back Up Manual Emergency Manual Emergency Electric
What oil is used for steering gear?
2135 TH
Who makes the ACs?
York
What’s the AC’s capacity?
200 tons
How many ACs are there?
5
Where are the ACs?
1&1A- Aux 1
2&3- Aux 2
4- Shaft Alley
How many chill water pumps are there?
5
What’s the purpose of chill water pumps?
Moves chill water throughout ship
How many expansion tanks do we have?
3
How much chill water can be stored?
750
What’s the purpose of expansion tanks?
Keeps chill water pressure to 50psi
Where are the expansion tanks located?
Aux 1
Aux 2
Shaft Alley
What type of refrigerant do we have?
R134A
How many Parisons Refrigerants do we have?
2
Where are the Parisons Refrigerants?
Shaft Alley
Refer Decks
Why are the Parison Refrigerants located there?
No exhaust in bilge
How many refers do we have?
2
What kind of refers do we have?
York
What’s the refer’s capacity?
1.5 tons
What type of Refrigerants do the refers use?
R134A
What type of distilling plant do we have?
Reverse Osmosis
How many distilling plants do we have?
2
What’s the max capacity of the distilling plant?
12,000
Where are the distilling plants?
Main 1
How do distilling plants work?
Filters out bad stuff from water
What’s the purpose of bromine?
Kills bacteria and pathogens
What’s the appropriate Bromine levels?
.2-2.0
How many potable water tanks do we have?
4
How much do the potable water tanks hold?
4,000 gallons each
Where are the potable water tanks located?
Aux 1
How many emergency tanks do we have?
3
How many gallons does the emergency tanks hold?
50
Where are the emergency tanks located?
Medical
Fwd and Aft BDS
How many gallons of water for each person?
30
How many potable water tanks do we have?
2
Where are the potable water tanks?
Aux 1
How many Inline Brominators do we have?
2
Where the Inline Brominators?
Main 1
How many Recerc Brominators do we have?
1
Where is the Recerc Brominator?
Aux 1
How many potable risers do we have?
2
How many hot water heaters do we have?
2
Where are the water heaters at?
Main 1
How many hot water recrec pumps do we have?
3
Where are the recrec pumps?
Main 1 and next to Filter Cleaning Shop
What is the function of seawater service system?
Cool equipment and Lube Oil
How many seawater pumps do we have?
5
Where are the seawater pumps located?
Main 1
Man 2
Aux 1
Shaft Alley
What’s the purpose of priority valve?
Kills non vital air
How many types of Priority Valves do we have?
2
What are the 2 types of priority valve?
Vital and Non Vital air
Where is the oil spill containment kit located?
STBD break
General Workshop
Where is the Oily Water Separator?
Aux 2
What PPMs is the oil content monitor?
15/70
Where are the oily water transfer pumps?
Main 1&2
Where does oily waste get transferred to?
Aux 2
Where are the deck connections for oil transfer pumps?
Main deck PRT/STB
Where is the oily waste connection tank?
Main 1&2
What size is the oily waste collection tank?
500 gallons
Where is the oily waste holding tank?
Aux 2
Where is the waste oil tank?
Aux 2
How many degaussing stations are there?
4
What are the degaussing coils?
A
FI-QI
M
FP-QP
What’s the purpose of coils?
Reduce magnetic signature
Where is the switchboard located?
Refer decks
How many settling tanks does Lube Oil have?
4
How many storage tanks does Lube Oil have?
6
What are Lube Oil tanks used for?
Store good Lube Oil
What’s the purpose of Lube Oil?
Lubrication and cooling
What does the main oil system interface with?
LOSCA
Where does the main oil system run through?
Main thrust bearing
How many Lube oil pumps does each MRG have?
3
How many Lube Oil coolers for each MRG?
1
How many GTMs are there?
4
What’s the make of the GTMs?
LM2500 by GE
What does UEC stand for?
Universal Electronic Control
What oil is used for GTMs?
23699
What does LOSCA stand for?
Lube Oil Storage Conditions Assembly
What’s the purpose of LOSCA?
Where oil for GTMs is stored
What is high pressure side?
Where intake combustion occurs
What’s the low pressure for air system?
Provided by 3 LPACs
What does each low pressure air system have?
Dehydrator
Where are the dehydrators at?
1- Main 1
2&3- Main 2
How many modes for LPAC?
Lead
Lag
Standby
What’s the pressure for Lead?
115-125psi
What’s the pressure for Lag?
110-120psi
What’s the pressure for Standby?
105-115psi
How many air receivers do we have?
2
What is the air tank size?
40sq ft
