Engineering Questions

Question 1

Name all Engineering Watch Stations

Answer 1

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

Question 2

What does EOSS stand for?

Answer 2

Engineering Operational Sequencing System

Question 3

What are all the engineering spaces?

Answer 3

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

Question 4

How many GTEs are there?

Answer 4

Seven

4 GTM and 3 GTG

Question 5

Where are the 7 GTEs located?

Answer 5

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

Question 6

What kinds of GTMs are onboard?

Answer 6

LM2500 Marine Gas Turbine Engines

Question 7

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

Answer 7

2190: line shaft bearing, HPAC, MRG CRP

23699: GTE

2135: HIPUS, Anchor Windlass

Question 8

What kinds of GTGs are onboard?

Answer 8

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

Question 9

What are the GTGs rated at?

Answer 9

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

Question 10

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

Answer 10

Friction and distance of cable

Question 11

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

Answer 11

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

Question 12

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

Answer 12

Main Reduction Gear, 30

Question 13

What does the MRG do?

Answer 13

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

Question 14

What is the functional description of the MRG?

Answer 14

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

Question 15

What is the reduction ratio of the MRG?

Answer 15

21.37 to 1

Question 16

Where are the MRGs located?

Answer 16

STBD: MER1
Port: MER2

Question 17

What is masker air used for?

Answer 17

Masks high frequency noise emitted by machinery in the main spaces

Question 18

What is the CRP for?

Answer 18

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

Question 19

What is Prairie Air used for?

Answer 19

Changes the signature of the ship’s propellers

Question 20

What are the 3 subdivisions of L/P Air?

Answer 20

Vital Air, Non Vital Air, Electronic Dry Air

Question 21

What is a priority valve?

Answer 21

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

Question 22

How many priority valves are there?

Answer 22

2, one for each MER

Question 23

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

Answer 23

Six

AUX1
MER1
AUX2
MER2
Shaft Alley
3GEN

Question 24

What are the seawater service pumps rated at?

Answer 24

1450gpm @ 35psi

Question 25

What is the process for making fresh water?

Answer 25

Reverse osmosis

Question 26

Where is the degaussing power located?

Answer 26

On the reefer decks near the trash room

Question 27

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

Answer 27

Changes the magnetic signature of the ship 4 coils

Question 28

State the types of fuel onboard the ship

Answer 28

F76 and JP5

Question 29

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

Answer 29

Main 1 and Main 2

Question 30

Where are the JP5 service and transfer systems located?

Answer 30

3GEN

Question 31

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

Answer 31

F76: 457,765 JP5: 20,890

Question 32

Where are the lube oil systems located?

Answer 32

Main 1 and Main 2

Question 33

What is the purpose of the Hydraulic Oil Power Module?

Answer 33

Filters/divides CRP, located in MER1 and MER2

Question 34

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

Answer 34

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

Question 35

What is "SPAM"?

Answer 35

Start Air Prairie Air Anti-icing Air Masker Air

Question 36

What locations can you steer the ship from?

Answer 36

Bridge Aft steering LCU Fill & Drain Pump Handwheel RachCHRT

Question 37

State the type and capacity of AC plants onboard.

Answer 37

R236FA, 200 tons

Question 38

State the location of ACs

Answer 38

AUX1, AUX2, Shaft Alley

Question 39

State the type and location of refrigerants onboard

Answer 39

R134A, 1.5 tons

Question 40

What are the 3 Low Pressure Air Compressor modes?

Answer 40

Lead: 115-125 PSI Lag: 110-120 PSI STBY: 105-115 PSI 3 onboard (1 in MER 1, 2 in MER2)

Question 41

State 5 locations that use Vital Air in Engineering

Answer 41

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

Question 42

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

Answer 42

1000-3000 PSI

Question 43

Where are the potable water pumps located?

Answer 43

AUX1

Question 44

Where are the potable water tanks located?

Answer 44

AUX 1, below OPS office

Question 45

Where are the brominators located?

Answer 45

MER1

Question 46

Where are the potable water risers located?

Answer 46

Midships

Question 47

Where are the hot water heaters and pumps located?

Answer 47

MER1

Question 48

What is the function of the seawater service system?

Answer 48

Provides cooling water to major equipment

Question 49

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

Answer 49

6 pumps Cools MRG lube oil, LPACs, and GTGs 1-AUX1 2-MER1 3-AUX2 4-MER2 5-Shaft Alley 6-3GEN

Question 50

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.

Answer 50

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