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ENGINEERING ESWS STUDY QUESTIONS > ENGINEERING ESWS > Flashcards

ENGINEERING ESWS Flashcards

1
Q

How many Steering Units are there?

A

(Four)

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2
Q

What type of system operates the Steering Units?

A

Closed loop hydraulic system.

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3
Q

Where are the Steering Units located?

A

(Aft Steering 3rd deck frame 247 Port and Stbd).

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4
Q

Where is the Ram Assembly located?

A

(4th deck below Port and Stbd Aft Steering)

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5
Q

How many Steering Units are online during normal operation?

A

(Two, 1 port and 1 Stbd, 1 & 4 even, 2 & 3 odd days).

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6
Q

Where can you steer the ship from?

A

Bridge, Aft Steering, Secondary Control in DCC

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7
Q

Where is Emergency Steering located?

A

(2nd deck frame 247 Port and Stbd)

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8
Q

What is the purpose of Emergency Steering?

A

(Bring rudder amidships during a casualty)

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9
Q

Explain the two main modes of steering.

A

(Non-Follow up: Helm Electric control from Bridge)(Follow up: Engage Trick wheel from Aft Steering)

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10
Q

Steering pumps

A

– Consist of two independent variable hydraulic pump that moves hydraulic liquid to the main system.

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11
Q

Trick wheel

A

– Provide local-hydraulic control of the steering system in case of failure of the remote steering system.

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12
Q

Differential control box

A

– Mechanically positions the tilt box of the main hydraulic pump to the required angle and position.

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13
Q

Ram assembly

A

– The ram unit is mounted athwart ship and consists of a single ram operated by opposed cylinders. The ram is connected by links to the tillers of the twin rudders. When oil pressure is applied to one end of the operating cylinder, the ram will move, causing each rudder to move along with it.

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14
Q

Emergency steering pump

A

– A hand pump and associated service lines are also provided for local-manual operation of the ram in case of failure of both hydraulic pump units.

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15
Q

Rack and pinion follow-up assembly

A

– The rack and pinion follow-up assembly transmit a signal to the differential control box when the ordered steering operation has been completed.

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16
Q

Oily Waste Separator (OWS)

A

– OWS is used to process oily wastes, that is, separate the oil and water, discharge the oil to the waste oil tank, and discharge the water overboard by way of an oil content monitor.

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17
Q

Deck connections

A
  • Oily waste transfer pump piping risers with deck discharge connections provide the ship with the capability to discharge oily waste and waste oil to shore facilities while in port. At least one connection is installed on each side of the ship.
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18
Q

Waste oil retention tank

A

– Receives separated oil from the OWS for later discharge to shore receiving facilities.

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19
Q

Oily waste holding tank

A

– Provides capability to store oily waste before processing by an OWS or before discharge to shore.

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20
Q

A coil

A

The A, or athwart ship, coil has loops in the vertical fore and aft planes. The function of the A coil is to produce a magnetic field that counteracts the magnetic field cause by the athwart ship induce magnetization.

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21
Q

M coil

A

The M, or Main, coil encircles the ship in a horizontal plane, usually near the waterline. The M coil produces a magnetic field that counteracts the magnetic field produced by the vertical permanent and vertical induced magnetization of the ship.

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22
Q

FP-QP coil

A

The FP-QP coil is used primarily to counteract the magnetic field produced by the ship’s longitudinal permanent magnetization, and it is sometimes used to provide some compensation to supplement the M coil for vertical induced magnetization.

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23
Q

FI-QI

A

The FI-QI coil is used primarily to counteract the magnetic field produced by the ships longitudinal induce magnetization.

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24
Q

Degaussing switchboard

A

The switchboard contains operator controls, control circuits, and status indicators for all coils. The switchboard is functionally divided to facilitate operation and maintenance.

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25
Q

Remote control panel

A

The remote control panels provide status indicators and a leading switch for emergency manual operation in a remote location.

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26
Q

What are the four phases of the basic Refrigeration Cycle?

A

(Compression, Condensation, Expansion, Evaporation)

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27
Q

What is the primary purpose of the A/C System?

A

(Provide cooling to vital electronic equipment)

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28
Q

What is the secondary purpose of the A/C System?

A

Crew comfort

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29
Q

How many A/C Plants are onboard?

A

(Ten)

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30
Q

Classify the A/C Plants.

A

(York 363 Ton Centrifugal, R-236fa)

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31
Q

Classify the Refers?

A

. (York 7 Ton Reciprocating, R-134a).

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32
Q

How many Refers are onboard?

A

(Five)

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33
Q

Where are the Refer Units located?

A

(1 & 2 Fwd A/C MR) (3, 4 & 5 Aft A/C MR)

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34
Q

Where are the A/C Plants located?

A

(1 & 2 Fwd A/C MR, 3 & 4 Aft A/C MR, 5 1MMR, 6 2RAR, 7 2MMR, 8 & 10 3C Shaft Alley, 9 7-25-0-E).

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35
Q

What color is Chill water and Refrigerant piping?

A

(Light Blue w/ Green stripes)(Dark Purple).

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36
Q

WHAT LOAD CENTERS SUPPLY POWER TO AC PLANTS AND REEFERS?

A

1 & # 2 LC 21, # 3 & # 4 LC 71, # 5 LC 43, # 6 LC 44, # 7 LC 61, # 9 LC 12, # 8 & # 10 LC 73, # 1 & # 2 REEFERS LC 21, # 3, 4, & 5 REEFER LC 71.

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37
Q

WHAT IS THE DESIGNED TEMPATURE FOR CHILL WATER?

A

44 DEGREES

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38
Q

WHAT IS THE PRIMARY AC PLANT FOR THE ISLAND?

A

7 AC PLANT

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39
Q

FOUR PHASES OF REFRIGERATION CYCLECOMPRESSION PHASE-

A

WHERE A LOW PRESSURE HIGH TEMP VAPOR ENTERS THE COMPRESSOR AND BECOMES A HIGH PRESSURE HIGH TEMP VAPOR.

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40
Q

CONDENSATION PHASE??

A

HIGH PRESSURE HIGH TEMP VAPOR ENTERS THE CONDENSER AND IS TURNED INTO A HIGH PRESSURE HIGH TEMP LIQUID BY FIREMAIN OR SEA WATER THAT PASSES THROUGH THE CONDENSER…

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41
Q

EXPANSION PHASE—-

A

HIGH TEMP HIGH PRESSURE REFRIGERANT ENTERS THE TXV ON THE REEFERS OR THE ORIFICE ON THE A/C PLANTS AND BECOMES A LOW TEMP LOW PRESSURE LIQUID.

42
Q

EVAPORATION PHASE—

A

-LOW PRESSURE LOW TEMP REFRIGERANT ENTERS THE EVAPORATOR AND REMOVES HEAT FROM EITHER THE CHILLWATER OR THE AIR IN THE SPACE AND BECOMES A LOW PRESSURE HIGH TEMP VAPOR..

43
Q

Purpose of Catapult Steam System?

A

Provide motive force to launch Aircraft.

44
Q

How many catapults are there and which are bow/waist?

A

(Four, 1 & 2 bow and 3 & 4 waist).

45
Q

How many catapult accumulators are there?

A

(Four)

46
Q

Where are the accumulators located?

A

(01-69-1-Q, 01-69-2-Q, 01-165-4-Q)

47
Q

What type and where does catapult steam come from?

A

(Main steam from Rx)

48
Q

Explain Catapult Supervisory Control.

A

(System to limit the amount of steam the accumulators can draw from the main steam system)

49
Q

What is the minimum pressure for a catapult shot?

A

(450 psig)

50
Q

What are the two fire suppression systems with the catapults?

A

Trough smothering and Launch Valve smothering

51
Q

Describe Launch Valve Smothering.

A

Main steam is reduced to 50 psig via an orifice with only a local valve to operate.

52
Q

Describe Trough Valve Smothering.

A

Main steam is reduced to 80 psig via an orifice. This has a local and remote operator. Each catapult has a valve to actuate trough smothering and an air actuator on the catwalks.

53
Q

WHAT IS THE CASUALTY RESPONSE FOR A FIRE IN THE LAUNCH VALVE ROOM?

A

USE STEAM SMOTHERING (CO2, AFFF OR SEA WATER WILL CAUSE A MAJOR STEAM RUPTURE AND WILL KILL ANYONE NEAR THE AREA) .

54
Q

How many O2/N2 Plants are onboard?

A

(Two)

55
Q

Where are they located?

A

( HB#1 Port)(HB#3 Stbd) *Blue doors

56
Q

What are the uses of LOX?

A

(Aviation Breathing Oxygen only)

57
Q

What are the uses of LIN?

A

(Wart Clinic, Freeze seals, shrink fittings)

58
Q

What are the basic safety precautions with LOX/LIN?

A

(No smoking, adequate ventilation, PPE, Non-spark tools, two-person rule)

59
Q

What is the required PPE?

A

(Face shield or goggles, molder’s boots, cryogenic coveralls, welder’s gauntlet type gloves).

60
Q

What is the storage capacity for LOX/LIN?

A

(1500gal LOX, 1500gal LIN each plant)

61
Q

What are the temperatures associated with LOX/LIN?

A

(-297F, -320F)

62
Q

Where is LOX stored?

A

(LOX carts holding a maximum 50 gal.)

63
Q

What does the yellow flashing light above O2N2 signify?

A

(X-Fer LOX)

64
Q

Where’s LOX transferred from the LOX carts?

A

(It is transferred to converters in the aircraft for breathing air. These converters are called pumpkin balls).

65
Q

Whose permission is required before dumping cryogenic liquids over the side?

A

(CO’s permission)

66
Q

WHAT ARE THE FOUR PHASES OF OPERATION FOR THE LP GEECO?

A

. AMBIENT THAW, COOL DOWN, PRODUCTION & DEFROST

67
Q

What is the purpose of the List Control System?

A

(Transfer water as necessary to maintain a zero degree list which equates to a level flight deck for launching Aircraft).

68
Q

How many list control pumps are there?

A

(Two)

69
Q

Where are the pumps located?

A

(4A Shaft Alley)

70
Q

What is the capacity of each list control pump?

A

(1800 GPM, 1 ½ degree list in 20 minutes)

71
Q

How many list control tanks are there?

A

(Ten, 5 port and 5 stbd Fr 113-180)

72
Q

Are all the list control tanks the same size?

A

(No, 17,000 to 36,000gal)

73
Q

What type of water is transferred in the tanks?

A

(Potable or X-Conn w/ FM)

74
Q

Where is the List Control System operated from?

A

(List Control Panel in DCC)

75
Q

CHT Fundamentals…..

How many sewage collection tanks are onboard?

A

(Three)

76
Q

What is the capacity of the tanks?

A

(FWD-48,000gal, AFT-50,000gal, Machinery Spaces-248gal)

77
Q

How many CHT pumps are onboard?

A

(Four, 2 in each CHT pump room)

78
Q

Classify these pumps.

A

(Eddy pumps, 400GPM)

79
Q

What are the three operating modes of the CHT system?

A

(In port, Transit, At sea)

80
Q

Explain each of these modes.

(In port- sewage pumped to pier…

A

Transit- sewage to tanks only…

81
Q

At sea???

A
  • Sewage pumped overboard once at least 3 miles from land)…
82
Q

At what distance from land can CHT be pumped overboard?

A

(3 miles)

83
Q

What dangerous gas is associated with the CHT system?

A

(Hydrogen sulfide gas – Hydrogen sulfide has been identified as the most likely gas hazard associated with decomposition of sewage in CHT tanks. It is toxic and can be explosive. If available, use a portable hydrogen sulfide detection and contact gas free engineer immediately to determine the concentration of gas in space).

84
Q

What are the three diseases you can get from CHT?

A

(Cholera, Hepatitis, Typhoid)

85
Q

What does H2S smell like?

A

(Rotten eggs)

86
Q

What are the precautions of sewage spill clean up?

A

Personnel involved in sewage clean up must wear proper protective equipment and shall not smoke, eat, drink before thorough wash up with hot water and soap. Also personnel exposed to sewage shall keep basic immunization current.

87
Q

What are Comminutors?

A

The comminutors located in the soil drain or the combined soil and water drain serves to macerate solids passing into the CHT tanks

88
Q

State the types and uses of Fuel Oil onboard.

JP-5

A

supplies fuel for helicopters, air planes, diesel generators and other equipment. Also for boiler use in emergency only (conventional only).

89
Q

MOGAS—

A

supplies gasoline engine equipment onboard ship. (eg. EOD Boat engine.

90
Q

F/O Service ??

A

– Fuel oil service system provides diesel fuel marine (DFM) from the fuel oil service tanks to the boiler burners.

91
Q

F/O Transfer

A

– Fuel oil transfer system allows the transfer of fuel from different fuel oil storage tanks to fuel service tank.

92
Q

F/O Stripping

A

– Fuel oil stripping system allows the removal of sediment and water from the bottom of fuel tanks.

93
Q

JP-5 Service

A

– JP-5 service system provides JP-5 fuel from the JP-5 fuel tank to the flight deck for aircraft refueling and to the boilers for emergency use.

94
Q

JP-5 Transfer

A

– JP-5 transfer system allows transfer of JP-5 fuel from different JP-5 fuel storage tanks to JP-5 fuel service tanks.

95
Q

State the type of distilling plants used onboard & their maximum daily distilling capacity?

A

6 stage flash
capacity: 100,000 gal of fresh water p/day
4 tanks = 400,000 gal of fresh water p/day

96
Q

How many catapults are on GW and which are bow / waist?

A

4
1 and 2 bow
3 and 4 waist

97
Q

What are the 4 phases of the basic refrigeration cycle?

A

compression
condensation
expansion
evaporation

98
Q

How many list control pumps are there on GW? what is the capacity?

A

2
1,800 GPM
4th Deck

99
Q

What are some uses for high pressure air?

A 
weapons elevators
aircraft elevators
Jet Blast Deflector
Catapult arresting gears
emergency diesel generators
hangar baby doors
emergency breathing air.
100
Q

What are some services that use steam provided by the steam rebiller?

A

distilling unit air ejectors
lube oil purifier heater
laundry steam
galley service steam.

ENGINEERING ESWS STUDY QUESTIONS (1 decks)

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