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ENG Flashcards

1
Q

Which SSDGs are in AMR1?

A

1 & #2

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2
Q

Which SWBDs are in AMR 1?

A

1s, 1sa, 2s, 2sa & degaussing

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3
Q

Which equip besides ssdg and swbd is located in AMR 1?

A 
#1 OWS/OWT
 #1 FP,
#1 ASW,
Brominator, 
Potable Water System, 
#1 LPAC, 
#1 Eductor
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4
Q

Which SSDGs are in AMR 2?

A

3 and #4

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5
Q

Which SWBDs are in AMR 2?

A

3s, 3sa, 4s, 4sa

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6
Q

Which equip besides ssdg and swbd is located in AMR 2?

A 
#2 OWS/OWT
#4 FP
#5 FP
#4 ASW
#2 LPAC
#4 LPAC
LSB 1-4, 2-1
#4 Eductor
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7
Q

Where are the MPDEs located?

A

1A & 1B -MMR1

2A & 2B- MMR2

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8
Q

What equipment is located in MMR 1

A 
#1 MRG
#1 CCP/HOPM
#1 R/O
#1 HPRO
#1 HPAC
#1 2190 L/O purifier
#1 SAE40 LOP
#2 ASW
#1 F/O purifier
#2 FP
#2 Eductor
#1 Waste Water Pump
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9
Q

What equipment is located in MMR 2

A 
#2 MRG
#2 CCP/HOPM
#2 R/O
#2 HPRO
#2 HPAC
#2 2190 L/O purifier
#2 SAE40 LOP
#3 ASW
#3 F/O purifier
#3 FP
#3 Eductor
#2 Waste Water Pump
LSB 1-2, 1-3
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10
Q

What FireFighting Equipment is located in ENG space?

A 
AFFF Bilge Sprinkling
AFFF Hose Reels
Halon 1301
Main Drainage System
Ventilation System
CO2
PKP
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11
Q

What is Normal Steaming?

A

Aux Steaming + Engines

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12
Q

What is AUX Steaming?

A

All Aux Equipment online, Running on ships power (SSDGs)

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13
Q

What is Cold Iron?

A

Equipment online only as necessary, running on shore power

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14
Q

How is electricity made?

A

An electro-Magnetic field
A conductor
Relative motion between the two

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15
Q

What are the parts of the Refrigeration cycle?

A

Condenser-Receiver-Evaporator-Compressor

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16
Q

Why is refrigerant used vice water?

A

Lower boiling point-easier to suck out heat

Compressor make it hot so it can cool with sea water

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17
Q

What are the 3 types of pumps?

A

Positive Displacement
Non-Positive Displacement
Jet Pump

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18
Q

What is a Positive Displacement pump?

A

Constant inlet/outlet flow
block can cost rise in internal pressure
most have displacement pumps

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19
Q

What is a Non-positive displacement pump?

A

Flow rate changes base off alignment
flow rate inversely proportional to pressure
internal pressure rise slowly-flow would cease causing overheating

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20
Q

What are Jet pumps?

A

No moving parts

use other fluid to increase flow

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21
Q

What is an example of positive pump?

A

attach pumps, standby pumps

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22
Q

What is an example of non-positive pump?

A

ASW, Fire pumps

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23
Q

What is an example of jet pump?

A

peri jets

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24
Q

What is the Basic Hydraulic Theory?

A

Non-complex/Force multiplier

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25
Q

How does purifiers work?

A 
High Speed vertical centrifugal separator
stacked discs
dense Dirt & Water sent to outside
Disc oil on inside
good oil sent back to sump
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26
Q

What are the stages of RO?

A

Ocean-Sea Chest-Fire Main-Hellan Strainer-20um Filter-3um filter-High Pressure Pump-6 Membranes-Salinity Cell&Dump valve-Potable Water System

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27
Q

What is MOB-D CE1?

A

Review Damage Control Administration

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28
Q

What is MOB-D CE2?

A

Demonstrate LOK

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29
Q

What is MOB-D CE3?

A

Set Material Condition Readiness (Z, Y/MOD Z)

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30
Q

What is MOB-D CE4?

A

Respond to Fire (IETs, F/S, RPLs)

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31
Q

What is MOB-D CE5?

A

Respond to Flooding (IETs, F/S, RPLs)

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32
Q

What is MOB-D CE6?

A

Respond to Structural damage

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33
Q

What is MOB-D CE7?

A

Respond to Toxic gas/Hazmat Spill

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34
Q

What is MOB-D CE8?

A

Provide Rescue and Assistance

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35
Q

What is MOB-D CE9?

A

Rig Casualty Power (RPLs)

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36
Q

What is MOB-D CE10?

A

Employ Chemical, Biological, or Radiological (CBR) Defense Procedures

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37
Q

What is MOB-E CE11?

A

Combat A Major conflagration

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38
Q

What is the EDORM?

A

Engineering Department Organization and Regulations Manual

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39
Q

What does the EDORM consist of?

A 
Gives responsibilities of Engineering CoC
Identifies the 4 PA
Watch Organization
ENG department operational Procedures
CHENG standing orders
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40
Q

What does the EDORM establish?

A

Management Preceps

  • Stress “quality” Training/Qualifications
  • Adherence to Approved Operational Procedures
  • Adherence to Approved Maintenance Procedures
  • Clear Communications
  • Increased Level of Knowledge
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41
Q

What is Stability?

A

Relationship between Force of Buoyancy and the Force of Gravity

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42
Q

What will make the ship right itself?

A

If the Force of Buoyancy is above the Force of gravity

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43
Q

What will make the ship roll when tipping?

A

if the Force of Gravity is above the Force of Buoyancy

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44
Q

What is Force of Gravity

A

The ship’s weight, centered at the Center of Mass. The center of mass will shift toward any weight added, and shift away from any weight removed.

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45
Q

What is Force of Buoyancy

A

Equal to the Force of Gravity, and the weight of the volume of water displace by the ship. The Center of Buoyancy is at the center of that volume of water that is displaced.

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46
Q

what are 4 reference points of stability

A

Center of Gravity, Center of Buoyancy, Metacenter (highest point on ship), and Keel

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47
Q

What are the types of valves?

A 
Plug.
Gate
Ball
Butterfly
Check
Relief
Globe
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48
Q

What valve handwheel is gold?

A

CHT

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49
Q

What valve handwheel is yellow?

A

Fuel

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50
Q

What valve handwheel is Yellow/black?

A

Lube oil

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51
Q

What valve handwheel is Green?

A

Saltwater

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52
Q

What valve handwheel is Light Blue?

A

feedwater

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53
Q

What valve handwheel is Dark Blue?

A

Potable water

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54
Q

What valve handwheel is white?

A

Steam

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55
Q

What valve handwheel is tan?

A

LP Air

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56
Q

What valve handwheel is Grey?

A

HP Air

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57
Q

What valve handwheel is Purple?

A

JP-5

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58
Q

What valve handwheel is Red and Blue?

A

AFFF

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59
Q

What valve handwheel is Green and Red?

A

AFFF and FM mix

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60
Q

What valve handwheel is orange?

A

Hydraulic Oil

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61
Q

What type of heat exchanger does the A/C use?

A

shell and tube type

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62
Q

What is a shell and tube type exchanger?

A

refrigerant travels through the shell and the ASW(condenser) or Chill Water(evaporator) pass through the tubes

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63
Q

What type of heat exchanger does the MPDE use?

A

use shell and tube as well to cool the L/O, however the coolant water is MSW

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64
Q

What type of heat exchanger does the SSDG use?

A

Plate heat exchanger

65
Q

what is a plate heat exchanger?

A

the flow of the coolant water and the L/O is separated by flat plates.

66
Q

what type of water is used to cool L/O for MPDE and SSDG?

A

Jacket water

67
Q

What is the percentage of cooling for L/O JW and Air?

A

L/O-60
JW-30
Air-10

68
Q

What is MRG and it’s purpose?

A

main reduction gear; converts dual engine input to single shaft output; ratio of bull gear to driving pinion is 1:3.15

69
Q

What are bearings and there purpose?

A

sacrificial metal used to lubricate and reduce friction between 2 mating surfaces

70
Q

what is a Thrust bearing?

A

prevents forward motion of shaft by providing opposing force to keep it in place while still allowing the shaft to spin

71
Q

What is a Line Shaft Bearing?

A

supports the weight of shaft and provides lubrication to lessen friction while it spins

72
Q

What is a Clutch and it’s purpose?

A

composed of an outer shoe (connected to MRG), a balloon, and an inner shoe (connected to engine); outer and inner shoe spin freely when clutch is not engaged (balloon inflated)

73
Q

Where are the LSB/Thrust Bearing located?

A
  • Intermediate Shaft Alley: 1-1
  • Main 2: 1-2, 1-3
  • Aux 2: 1-4, 2-1
  • Shaft alley: 1-5, 1-6, 2-2, 2-3
  • Thrust bearings are forward of the bull gear on each MRG
74
Q

Where are the Deballasting tanks?

A 
3rd deck tanks (18)
•	Firemain filled
•	Gravity drained
•	HPUs open/close valves
5th/6th deck tanks (65)
•	Seawater filled
•	DBAC drained
HPUs open/close sea valves
75
Q

What are the two parts to EOSS?

A

EOP and EOCC (casualties base on standard plant configuration: split plant, standard, 15 kts)

76
Q

what is LOQM?

A

Lube Oil Quality Management

77
Q

What type of L/O is onboard?

A

2190, SAE 40, 2135

78
Q

What equipment use 2190 L/O?

A

MRG, CPP, HPAC, LSB

79
Q

What equipment use SAE 40?

A

mpde,ssdg

80
Q

What equipment use 2135?

A

Aft steering

81
Q

When is L/O Samples Taken

A
  • Within 24 hrs of start
  • Upon receipt of oil
  • Prior to transfer
  • When unusual operating conditions exits
  • After a casualty (every 4 hours for 48 hours)
  • From discharge side 30 min after L/O Purifier start, and at least once every 4 hrs
  • DBU- Day Before U/W on main/auxiliary systems (except MPDE)
  • Daily at midnight
82
Q

How is SAE 40 tested?

A

viscosity test

83
Q

What are the ways to test fuel/carbon? (SAE-40)

A

kittiweigh and Dropball test

84
Q

What is a dropball test? (SAE-40)

A

where it basically rocks back and forth measuring how long it takes the metal ball inside to go from one end to the other using a small magnetic field. The slower it is (the higher the viscosity) the more carbon there is in the oil, the faster it is (the lower the viscosity) the more fuel there is in the oil.

85
Q

How do you conduct a L/O water weight test? (SAE-40)

A

You add a small amount of oil to a special container, then add a liquid called region A. you put the bottle on a machine that measures its “weight”, then add a powder called region b and shake it for 120 seconds. After, measure its “weight” again and it will tell you the % of water in the sample.

86
Q

How do you test 2190 L/O?

A

simple visual clear and bright test

87
Q

What are the signs in a clear and bright test? (2190 L/O)

A

Clear means there is no sediment, bright means no water. If there is water in the sample the oil will be hazy, if not the oil will be very bright.

88
Q

How do you test JP-5

A

You test for water/sediment in the purple box located in oil lab. To test for water, you take a filter out and put it in the silver nozzle inside the box, and put the nozzle on a bottle w/500ml of JP-5. The box will drain the bottle, pulling the fuel through the filter. Take the filter out and put it in the uv portion of the box and compare to the scale to see if it is a 10 or under (SAT) on the scale. For sediment it is basically the same thing, except there are 2 filters (different filters) and you need at least 800ml of JP-5. After pulling the fuel through the filters, put the filters in the light trap on the top of the box and then subtract the difference between the two. Use the chart located on top of the box to see if the sample is SAT.

89
Q

how do you test F-76?

A

fill sample bottles, then take bottles to the centrifuge in the centrifuge flasks. After spinning for approx 15 min, check the bottom of the flask for both sediment and water. Measurements (in .01s) are on the flask.

90
Q

When is sample and testing done on F76?

A
  • Taking on
  • Prior to transfer
  • Prior to placing a service tank on suction
  • Within 24 hrs of receipt
  • Monthly
91
Q

When is sample taking during a RAS.

A

Free Water test every 15 mins.
If it fails Clear & Bright, use Bottom Sediment & Water test.
Conduct tests at the beginning, mid, final.

92
Q

When is double barrier protection required?

A

i. HiT (>200F)
ii. O (oil w/ flash point <200F)
iii. P (Penetration below waterline)
iv. HiP (>1000psi)
v. Ox (Oxygen systems)
vi. P (Seawater Pipe greater than ½” diameter)

93
Q

when are tag-out Audits conducted?

A

Weekly during availability; every two weeks outside availability

94
Q

What are the references for Tag-out?

A

Tag-Out User’s Manual (TUMS), ASHLANDINST 3540.17M

95
Q

What is the NALFLEET 2000?

A

Inhibitor used for MPDEs and SSDGs; 3 gallons for every 100 gallons of water.

96
Q

What does the NALFLEET 2000 help prevent?

A

corrosion inside the engines where the water flows.

97
Q

What are trends used to test?

A

Used to test efficiency of MPDEs and SSDGs; initial readings provide for adjustment

98
Q

When are trends conducted?

A

80% - monthly

100% - every 6 months

99
Q

How are trends conducted?

A

(1) Constant load for 30 min (2-deg rudder restriction (prevent change in load))
(2) Take readings of temp and press in all cylinders via threading a gauge through the indicator cocks for each cylinder

100
Q

What are the MPDE basics?

A

Colt-Pielstick Diesel 2.5V, V-Type,
16-Cylinder,
4-Stroke (intake, compression, combustion, exhaust AKA Suck, Squeeze, Bang, Blow)

101
Q

What are the 4 strokes?

A 
intake-(Suck)
 compression, (Squeeze) 
combustion, (Bang)
exhaust (Blow)
(Suck, Squeeze, Bang, Blow)
102
Q

What is turbo Charger?

A

– provides slightly pressurized intake air to improve the efficiency of the engine, uses the hot exhaust air to spin a turbine directly connected to a compressor to do so. Basically it uses the energy in the exhaust that we were going to throw away into the atmosphere and gets work out of it!

103
Q

What is Crankcase?

A

compartment within engine where combustible gases collect; crankcase vacuum prevents pressure build-up, which would cause explosion (crankcase explosion categorized as any positive pressure in crankcase). Following crankcase explosion, wait minimum of 30 min before opening (for in-tact explosion) in case of secondary explosion, and immediately shut down other engine in space.

104
Q

What is cylinder?

A

16 per MPDE; houses piston and aids with trapping gases for compression stroke

105
Q

What does a cylinder head do?

A

prevents pressure from leaking out of cylinder during compression stroke, only on MPDE

106
Q

What does a ConRod do?

A

connects the piston to the crankshaft to convert up-down motion to rotational motion.

107
Q

What is a Gieslinger Coupling?

A

A coupling after the flywheel of the MPDE the connects the flywheel to the quill shaft, it is essentially leaf springs that are used to damped the vibration between the MPDE and the MRG

108
Q

What is the rating of the MPDEs?

A

8,500 bhp (Brake horse power) EACH ENGINE
572-590 RPM is overspeed,
200 RPM is idle

109
Q

What are the SSDG basics?

A

Fairbanks Morse 12 cylinder opposed piston,

2 stroke Diesel

110
Q

What is a blower?

A

A blower is a compressor for intake air driven by the crankshaft, provides pressurized air to the SSDG at the cost of energy from the engine.

111
Q

What is a Crankcase?

A

compartment within engine where combustible gases collect; crankcase vacuum prevents pressure build-up, which would cause explosion (crankcase explosion categorized as any positive pressure in crankcase). Following crankcase explosion, wait minimum of 30 min before opening (for in-tact explosion) in case of secondary explosion, and immediately shut down other engine in space.

112
Q

What is rotor?

A

coils used as electro-magnets that the SSDG actually spins within the stator to create electricity. The electricity is sent from the exciter

113
Q

What is a stator?

A

The conductor wrapped into circular coils that go around the rotor.

114
Q

What is the exciter?

A

In the generator, is used to create the correct current and voltage to go to the rotor, so that it creates the correct, constant magnetic field.

115
Q

what is PMA- Permanent Magnet Assembly

A

This is the only permanent magnet in the system (like the bars with the north and south pole ones), it is a small generator essentially that makes electricity with its own rotor coils, and sends that electricity to the DVR (digital voltage regulator) that turns it from Alternating current to Direct Current. It has to be DC so that when it goes ultimately to the rotor, the magnet field created is constant. (if it was AC it would be fluctuating and f$#% up the current created).

116
Q

What is the SSDG rating?

A 
-	SSDG: 1600KW, 
2556 Amps, 
60 Hz, 
450V, 
900 RPM
117
Q

what is emergency packing?

A

Used when the stern tube seal breaks, is a kit that we use to compress the seal, wrap packing (like a 1” by 1” square rope) around the shaft. And then put a metal ring behind it to screw it down and tighten it up. This is the same concept we use for regular valve stems.

118
Q

What is Emergency Ahead pitch?

A

Used in order to ensure making it into port/dry-dock (basically oh shit we need to get where we were going). Take manual control at OD Box and set pitch to 100%, then manually pump until pitch is 110%.

119
Q

What are come home bolts?

A

Giant bolts always that CHENG keeps in his possession that will lock in the clutch, 8 per clutch. It is not good for the engine, shaft, or MRG. Last resort to get home.

120
Q

What are the discharge limits for garbage?

A

Garbage 3-12NM Pulped; >12NM if shredded

121
Q

What are the discharge limits for gray water?

A

0-3NM (keep in tanks and pump on shore if able)

122
Q

What are the discharge limits for black water?

A

> 3NM

123
Q

What are the discharge limits for waste?

A

Can pump at ANY TIME if <15ppm; but if >15ppm, >50NM

124
Q

When can we make P/W/

A

You can make P/W even within 12NM in emergency situations; however, we typically don’t make water within 12NM

125
Q

What are the single/double hearing protection limits?

A

84dB – 96dB = Single Hearing Protection

> 96dB = Double Hearing Protection

126
Q

What is required for hearing conservation program?

A

Requires industrial hygienist to conduct survey of areas and equipment.
Initial and annual audiogram testing is required for all Engineers.

127
Q

What is the PHEL Chart?

A

(Physiological Heat Exposure Level Chart) – has 6 curves that indicate different kinds of work from light work to heaviest strenuous work and determine stay times for watch personnel; only CO can extend stay times

128
Q

What is Dry bulb temp?

A

ambient temperature of space (normal thermometer)

129
Q

what is wbgt (Wet Bulb Globe Temperature)?

A

measures dry bulb, wet-bulb, and globe temperature and integrates them
into a single heat stress value that can be correlated to the WBGT
Index; used to conduct Heat Stress Surveys

130
Q

When and where are heat stress surveys conducted?

A
  • At all manned watch/workstations within the space
  • In any space where/when a heat injury occurs
  • Prior to conducting engineering casualty control (ECC) drills, if exceeding 3 hours
  • In any space when the CO determines that a heat stress situation may occur
  • As required for “Follow-On Surveys” (survey following original heat stress survey for the remainder of the day)
131
Q

What are the CASUALTIES/STOP AND LOCK

A
  • MRG loss of L/O pressure
  • MRG metallic noise
  • MRG high L/O temp uncontrollable
  • LSB high L/O temp uncontrollable
  • LSB loss of L/O pressure
  • LSB metallic noise
  • Loss of Stern Tube Cooling
132
Q

What does PLMU do?

A

reduces LOAD on engine

133
Q

What is PLMU?

A

Propulsion Load Management Unit

134
Q

How does PLMU reduce Load?

A
  1. RPM Command
  2. Pitch Control
  3. MPDE Load Control (Pitch Cutback)
    PLMU can only control PITCH not RPM, F/O rack (mm), or Ship’s Load
  4. MPDE Load Sharing – B MPDE is slave to speed/load of A MPDE
135
Q

What is PMP?

A

Power Management Platform

136
Q

What does PMP do?

A

controls SSDGs and electrical plant; supersedes EPCP control in Main Control

137
Q

What equipment will we lose if there is a loss of 1S/1SA?

A 
3 STC A ( IC/Gyro),
 20 Ton Crane, 
 Loss of NIPR and SIPR,  
loss of NR1, NR 3, and NR5 Firepumps, 
loss of NR1 DBAC, 
NR1 R/O unit, 
CPS Stbd, 
CIWS 21,
 FWD AC, 
NR3 AFFF
138
Q

What equipment will we lose if there is a loss of 2S/SA?

A 
Medical/Dental, 
Steering,
 LCAC/JP-5 Services, 
NR2 and NR4 AFFF, 
1STC,  
NR2 and NR4 Fire Pumps, 
Steering, 
NR2 DBAC, 
loss of CHT Pumps,  
loss of NR1 and NR2 Refers
139
Q

What equipment will we lose if there is a loss of 3S/SA?

A 
NR3 DBAC,
 NR1 AFFF, 
LCU services, 
3STC-B/C, 
1STC,  
CIWS 24,
 NR 3AFFF,
 5A/C, 
Degaussing,
 NR2 and NR4 Fire pump,
 60 Ton Crane, 
CIC
140
Q

What equipment will we lose if there is a loss of 4S/SA?

A 
CIWS 21,
 NR2 and NR4 AFFF, 
Aft A/C, 
3 STC A, 
Steering, 
NR1 and NR3 Fire pumps, 
NR4 DBAC, 
CPS Port, 
loss of galley equipment
141
Q

What are the power sources for steering?

A

NR4 swb is primary,

NR2 swb is secondary

142
Q

How does Gas turbines work?

A

Suck, Squeeze, bang, blow

143
Q

What is Suck?

A

It starts with intake air coming into the deck air intakes

144
Q

What is Squeeze?

A

then compression through the air compressor blades

145
Q

What is bang?

A

this compresses the air to a high enough pressure where the temperature is high enough to ignite fuel; this air goes into the combustion chamber where vaporized fuel is injected and explodes

146
Q

What is Blow?

A

then this extremely hot and high pressure gas expands over the turbine blades to create the rotational motion and exits through the exhaust

147
Q

What are the stages the engine goes through?

A

of intake-compression-expansion-exhaust.

148
Q

What are the two turbines hot expanding gas expands over?

A

Auxiliary and Main Power Turbine

149
Q

What is Auxiliary Turbine?

A

This has a shaft that goes backwards through the engine drives the compressor for the intake air.

150
Q

What is the Main Power Turbine?

A

secondary turbine that rotates a shaft either going to a clutch and an MRG to move the ship, or to a generator to create electricity

151
Q

What is the exhaust air after the second turbine used for?

A

masker and prairie air, or to start another gas turbine.

152
Q

What is MOB-E CE1?

A

ETT-Plan, Brief, Execute, and Debrief

153
Q

What is MOB-E CE2?

A

SOH-4 Programs

154
Q

What is MOB-E CE3?

A

LOK-Percentage of watch-standers test score

155
Q

What is MOB-E CE4?

A

Critical-Btw 5 to 7 Programs (class dependent)

156
Q

What is MOB-E CE5?

A

Critical-Btw 6 to 8 Programs (class dependent)

157
Q

What is MOB-E CE6?

A

Section 1/2 75% or above

158
Q

What is MOB-E CE7?

A

Section 1/2 Drills-50% or above

159
Q

What is MOB-E CE8?

A

MSFD MMFOL(2), MCBF (2), Repair Party (1)

SWO ENG (1 decks)

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