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ESWS > Engineering Questions > Flashcards

Engineering Questions Flashcards

1
Q

Name all Engineering Watch Stations

A

EOOW, EDO, PAAC, EPCC, Cold Iron Watch, Oil King, Sounding and Security, IEM, ASM, PSM, ERO

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2
Q

What does EOSS stand for?

A

Engineering Operational Sequencing System

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3
Q

What are all the engineering spaces?

A

Fwd VCHT, AUX1, MER1, AUX2, MER2, Shaft Alley, 3GEN, Aft Steering

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4
Q

How many GTEs are there?

A

Seven

4 GTM and 3 GTG

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5
Q

Where are the 7 GTEs located?

A

1GTG: AUX1
1A/B GTM: MER1
2A/B and 2GTG: MER2
3GTG: 3GEN

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6
Q

What kinds of GTMs are onboard?

A

LM2500 Marine Gas Turbine Engines

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7
Q

What are the types of Lube Oil and what equipment are they used for?

A

2190: line shaft bearing, HPAC, MRG CRP

23699: GTE

2135: HIPUS, Anchor Windlass

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8
Q

What kinds of GTGs are onboard?

A

The allison 501-K34 GTG is a single shaft engine with a 14 stage axial flow compressor, can-annular, combustor and four stage turbine

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9
Q

What are the GTGs rated at?

A

4009 amps, 2500 KW, 450 VAC, 3 phase, 60 Hertz, at a .8 PF

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10
Q

What causes the GTGs to have a .8 Power Factor?

A

Friction and distance of cable

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11
Q

How many switchboards are there and what are they rated at?

A

3, one for each GTG and they are rated at 60hz

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12
Q

What is an MRG and how many bearings does it have?

A

Main Reduction Gear, 30

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13
Q

What does the MRG do?

A

The MRG converts high speed, low torque input of the GTM to low speed, high torque output for the shaft and propeller

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14
Q

What is the functional description of the MRG?

A

Double input, double reduction, double helical, single output, locked train, articulated

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15
Q

What is the reduction ratio of the MRG?

A

21.37 to 1

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16
Q

Where are the MRGs located?

A

STBD: MER1
Port: MER2

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17
Q

What is masker air used for?

A

Masks high frequency noise emitted by machinery in the main spaces

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18
Q

What is the CRP for?

A

To vary the angle of attack of the propeller blades, AKA pitch

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19
Q

What is Prairie Air used for?

A

Changes the signature of the ship’s propellers

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20
Q

What are the 3 subdivisions of L/P Air?

A

Vital Air, Non Vital Air, Electronic Dry Air

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21
Q

What is a priority valve?

A

Automatically close to secure nonvital air when vital header pressure drops to 85PSIG

22
Q

How many priority valves are there?

A

2, one for each MER

23
Q

How many seawater service pumps are there and where are they located

A

Six

AUX1
MER1
AUX2
MER2
Shaft Alley
3GEN

24
Q

What are the seawater service pumps rated at?

A

1450gpm @ 35psi

25
Q

What is the process for making fresh water?

A

Reverse osmosis

26
Q

Where is the degaussing power located?

A

On the reefer decks near the trash room

27
Q

What is degaussing used for? How many coils are there?

A

Changes the magnetic signature of the ship

4 coils

28
Q

State the types of fuel onboard the ship

A

F76 and JP5

29
Q

Where are the fuel oil service system and fuel oil fill and transfer systems located?

A

Main 1 and Main 2

30
Q

Where are the JP5 service and transfer systems located?

A

3GEN

31
Q

What are the ship’s maximum capacity for F76 and JP5?

A

F76: 457,765

JP5: 20,890

32
Q

Where are the lube oil systems located?

A

Main 1 and Main 2

33
Q

What is the purpose of the Hydraulic Oil Power Module?

A

Filters/divides CRP, located in MER1 and MER2

34
Q

What is the purpose of the Oil Distribution (OD) Box?

A

Used to manually take control of pitch. Located in MER1 and MER2.

35
Q

What is “SPAM”?

A

Start Air
Prairie Air
Anti-icing Air
Masker Air

36
Q

What locations can you steer the ship from?

A

Bridge
Aft steering
LCU
Fill & Drain Pump
Handwheel
RachCHRT

37
Q

State the type and capacity of AC plants onboard.

A

R236FA, 200 tons

38
Q

State the location of ACs

A

AUX1, AUX2, Shaft Alley

39
Q

State the type and location of refrigerants onboard

A

R134A, 1.5 tons

40
Q

What are the 3 Low Pressure Air Compressor modes?

A

Lead: 115-125 PSI
Lag: 110-120 PSI
STBY: 105-115 PSI

3 onboard (1 in MER 1, 2 in MER2)

41
Q

State 5 locations that use Vital Air in Engineering

A
  1. Blow In Doors (intakes)
  2. MRG brakes
  3. Vent Dampeners (GTMs/GTGs)
  4. Leslie Valves (MRG cooling)
  5. Fuel unloading valves
42
Q

What is the normal operating pressure of HP/MP/LP air?

A

1000-3000 PSI

43
Q

Where are the potable water pumps located?

A

AUX1

44
Q

Where are the potable water tanks located?

A

AUX 1, below OPS office

45
Q

Where are the brominators located?

A

MER1

46
Q

Where are the potable water risers located?

A

Midships

47
Q

Where are the hot water heaters and pumps located?

A

MER1

48
Q

What is the function of the seawater service system?

A

Provides cooling water to major equipment

49
Q

How many seawater pumps are onboard, what do they do, and where are they located

A

6 pumps

Cools MRG lube oil, LPACs, and GTGs

1-AUX1
2-MER1
3-AUX2
4-MER2
5-Shaft Alley
6-3GEN

50
Q

I am a molecule of air; take me from outside the skin of the ship, through the engines and back outside the skin of the ship.

A

Louvers
Anti-icing pipes
Dirty side intakes
Agglomerator filters
Blow in doors
Clean side intakes
Silencers
Inlet plenums
Fod screen
Bellmouth
Bullet nose
16 stage axial flow type compressor
Annular combustor
2 stage HP turbine
6 stage LP turbine
Exhaust
Uptakes
Mixing room
Stacks
BLISS caps

ESWS (12 decks)

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