ENGINEERING Flashcards
1
Q
What’s the purpose of the MRG and Shafting?
A
Convert high speed low torque to low speed high torque
2
Q
State the description of the MRG
A
Double input Single output Double reduction Double helical Locked train Articulated
3
Q
What’s the connection between the MRG and Propulsion Gas Turbine?
A
Turbine to MRG. High speed flexible coupling shaft
4
Q
What’s the purpose of break mode?
A
Used for running aground. Stops everything real quick
5
Q
What kind of thrust bearings do we have?
A
Kingsbury (most important)
6
Q
What’s the purpose of main thrust bearings?
A
Makes us go forward. Absorbs axel thrust and disburses it through the hull.
7
Q
Where are the main thrust bearing located?
A
One in each shaft
8
Q
Where are the line shafts located?
A
STB- Main 2 and Shaft Alley
PORT- Shaft Alley
9
Q
What’s the purpose of line shaft bearing?
A
Absorbs thrust
10
Q
What’s the purpose of strut bearing?
A
Supports shaft outside skin of ship.
11
Q
What is strut bearing lubed by?
A
Seawater
12
Q
Where is the Stern Tube Assemblys located?
A
Shaft alley
13
Q
What’s the purpose of the stern tube assembly?
A
Goes into the ship. Keeps water out
14
Q
What is the Lube for MRG?
A
2190
15
Q
What does CRP stand for?
A
Controllable Reversible Propeller
16
Q
What’s the purpose of CRP system?
A
Allows ship to go forwards and backwards
17
Q
What is HOPM?
A
Hydraulic Oil Power Module
18
Q
What’s the purpose of HOPM?
A
Creates control oil and power oil
19
Q
How many pumps are there for CRP Pumps?
A
2
20
Q
Where are the CRP pumps?
A
Attached to MRG and Electric Pump
21
Q
After oil goes to HOPM, where does it go next?
A
Oil Distribution Box
22
Q
What’s the purpose of Oil Distribution Box?
A
Control oil tells power oil what to do
23
Q
Why are the shafts hollow?
A
So Oil can get to and from the blades
24
Q
What’s the purpose of CRP Head Tanks?
A
Keeps positive pressure in oil system
25
What oil does CRP use?
2190
26
What's the purpose of Emergency Hydraulic Pump?
Head pitch at 130% for blades
27
Shafts and blades affect what?
Speed of ship
28
What's the function of start air?
Start GTMs
29
What's the purpose of Prairie Air?
Masks sound of propellers
30
What's the purpose of Anti Icing Air?
Keeps from freezing in 40 degree weather at 70% humidity
31
What's the purpose of Masker Air?
Masks hull of ship
32
Where does bleed air come from?
14th stage GTG and 16th stage GTM
33
What does bleed air split into? SPAM
Start Air
Prairie Air
Anti Icing Air
Masker Air
34
Where are PACS located?
CCS
35
Where are SCUs located?
Engine Room
36
What does PACs and SCUs do?
Mask hull of ship
37
How many Masker Addmitter Rings do we have?
3
38
What does Masker Addmitter Rings do?
Run around bottom of ship
39
Where are Masker Addmitter Rings located?
Main 1&2
| Aux 1
40
What's the purpose of Masker Addmitter Rings?
So nobody can hear us
41
Where can you steer the ship from?
Bridge and AFT Steering
42
How many ways can we steer the ship?
6
43
What are the 6 ways to steer ship?
```
BSU
ASU
LCU
Electronic
Emergency Hand Pump
Ratchets
```
44
Where is BSU?
Bridge
45
Where is ASU?
Aft Steering
46
Where is LSU?
Aft Steering
47
Where is Electronic?
Aft Steering
48
Where is Emergency Hand Pump?
Aft Steering
49
What are the 5 methods to control steering?
```
Auto Pilot
Computer Manual
Back Up Manual
Emergency Manual
Emergency Electric
```
50
What oil is used for steering gear?
2135 TH
51
Who makes the ACs?
York
52
What's the AC's capacity?
200 tons
53
How many ACs are there?
5
54
Where are the ACs?
1&1A- Aux 1
2&3- Aux 2
4- Shaft Alley
55
How many chill water pumps are there?
5
56
What's the purpose of chill water pumps?
Moves chill water throughout ship
57
How many expansion tanks do we have?
3
58
How much chill water can be stored?
750
59
What's the purpose of expansion tanks?
Keeps chill water pressure to 50psi
60
Where are the expansion tanks located?
Aux 1
Aux 2
Shaft Alley
61
What type of refrigerant do we have?
R134A
62
How many Parisons Refrigerants do we have?
2
63
Where are the Parisons Refrigerants?
Shaft Alley
| Refer Decks
64
Why are the Parison Refrigerants located there?
No exhaust in bilge
65
How many refers do we have?
2
66
What kind of refers do we have?
York
67
What's the refer's capacity?
1.5 tons
68
What type of Refrigerants do the refers use?
R134A
69
What type of distilling plant do we have?
Reverse Osmosis
70
How many distilling plants do we have?
2
71
What's the max capacity of the distilling plant?
12,000
72
Where are the distilling plants?
Main 1
73
How do distilling plants work?
Filters out bad stuff from water
74
What's the purpose of bromine?
Kills bacteria and pathogens
75
What's the appropriate Bromine levels?
.2-2.0
76
How many potable water tanks do we have?
4
77
How much do the potable water tanks hold?
4,000 gallons each
78
Where are the potable water tanks located?
Aux 1
79
How many emergency tanks do we have?
3
80
How many gallons does the emergency tanks hold?
50
81
Where are the emergency tanks located?
Medical
| Fwd and Aft BDS
82
How many gallons of water for each person?
30
83
How many potable water tanks do we have?
2
84
Where are the potable water tanks?
Aux 1
85
How many Inline Brominators do we have?
2
86
Where the Inline Brominators?
Main 1
87
How many Recerc Brominators do we have?
1
88
Where is the Recerc Brominator?
Aux 1
89
How many potable risers do we have?
2
90
How many hot water heaters do we have?
2
91
Where are the water heaters at?
Main 1
92
How many hot water recrec pumps do we have?
3
93
Where are the recrec pumps?
Main 1 and next to Filter Cleaning Shop
94
What is the function of seawater service system?
Cool equipment and Lube Oil
95
How many seawater pumps do we have?
5
96
Where are the seawater pumps located?
Main 1
Man 2
Aux 1
Shaft Alley
97
What's the purpose of priority valve?
Kills non vital air
98
How many types of Priority Valves do we have?
2
99
What are the 2 types of priority valve?
Vital and Non Vital air
100
Where is the oil spill containment kit located?
STBD break
| General Workshop
101
Where is the Oily Water Separator?
Aux 2
102
What PPMs is the oil content monitor?
15/70
103
Where are the oily water transfer pumps?
Main 1&2
104
Where does oily waste get transferred to?
Aux 2
105
Where are the deck connections for oil transfer pumps?
Main deck PRT/STB
106
Where is the oily waste connection tank?
Main 1&2
107
What size is the oily waste collection tank?
500 gallons
108
Where is the oily waste holding tank?
Aux 2
109
Where is the waste oil tank?
Aux 2
110
How many degaussing stations are there?
4
111
What are the degaussing coils?
A
FI-QI
M
FP-QP
112
What's the purpose of coils?
Reduce magnetic signature
113
Where is the switchboard located?
Refer decks
114
How many settling tanks does Lube Oil have?
4
115
How many storage tanks does Lube Oil have?
6
116
What are Lube Oil tanks used for?
Store good Lube Oil
117
What's the purpose of Lube Oil?
Lubrication and cooling
118
What does the main oil system interface with?
LOSCA
119
Where does the main oil system run through?
Main thrust bearing
120
How many Lube oil pumps does each MRG have?
3
121
How many Lube Oil coolers for each MRG?
1
122
How many GTMs are there?
4
123
What's the make of the GTMs?
LM2500 by GE
124
What does UEC stand for?
Universal Electronic Control
125
What oil is used for GTMs?
23699
126
What does LOSCA stand for?
Lube Oil Storage Conditions Assembly
127
What's the purpose of LOSCA?
Where oil for GTMs is stored
128
What is high pressure side?
Where intake combustion occurs
129
What's the low pressure for air system?
Provided by 3 LPACs
130
What does each low pressure air system have?
Dehydrator
131
Where are the dehydrators at?
1- Main 1
| 2&3- Main 2
132
How many modes for LPAC?
Lead
Lag
Standby
133
What's the pressure for Lead?
115-125psi
134
What's the pressure for Lag?
110-120psi
135
What's the pressure for Standby?
105-115psi
136
How many air receivers do we have?
2
137
What is the air tank size?
40sq ft
