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Flashcards in Engineering Deck (70):
1

How many steering units are there

4

2

What type of system operates the steering units

closed loop hydraulic system

3

Where are the steering units located?

Aft steering: 3rd deck frame 247 port and stbd side

4

where is the ram assembly located

4th deck below aft steering

5

how many steering units are online during normal operation

2, 1 port and 1 stbd. 1+4 on even days, 2+3 odd days

6

where can you steer the ship from

bridge, aft steering, secondary conn in DCC

7

what is the purpose of emergency steering

brings the rudder amidships during a casualty

8

explain the two modes of steering

non-followup: helm electric control from the bridge

Followup: has the trick wheel engaged in aft sterring

9

what is the purpose of the steering pumps

consists of two independent variable hydraulic pumps that move hydraulic liquid to the main system

10

what is the purpose of the trick wheel

provides local hydraulic control of the steering system in case of failure of the remote steering system

11

what is the purpose of the differential control box

mechanically positions the tilt box of the main hydraulic pump to the required angle and position

12

what is the purpose of the ram assembly

the ram unit is mounted athwartship 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 with it

13

describe the emergency steering pump

a hand pump and associated service lines provided for local manual operation of the ram in case of failure of both hydraulic pump units

14

describe the rack and pinion follow up assembly

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

15

What are the four phases of the refridgeration cycle

compression, condensation, expansion, evaporation

16

what is the purpose of the AC system

provide cooling to vital electronic equipment, crew comfot

17

how many ac plants are on board

ten

18

classify the AC plants

york 363 ton centrifugal

19

classify the refers

york 7 ton reciprocating

20

how many refers do we have on board

5

21

what color is chill water piping

light blue with green stripes

22

what color is refridgerant piping

dark purple

23

what is the designed temp for chill water

44F

24

what is the primary AC unit for the island

7

25

Describe the compression phase

a low pressure, high temp vapor is turned into a high pressure, high temp vapor

26

describe the condensation phase

a high pressure, high temp vapor is turned into a high pressure, high temp liquid

27

describe the expansion phase

a high pressure, high temp liquid is turned into a low temp, low pressure liquid

28

describe the evaporation phase

a low temp, low pressure liquid is turned into a low pressure, high temp vapor

29

how many cats are there and which are bow/waist

we have 4 cats. 1 and 2 are the bow, and 3 and 4 are the waist

30

how many cat accumulators are there

four

31

explain CSCC

it is a system to limit the amount of steam the accumulators can draw from main steam

32

what is the minimum pressure for a cat shot

450psig

33

what are the two fire suppresion systems for the cats

trough smothering and launch valve smothering

34

what is the casualty response for a fire in the launch valve room

steam smothering

35

how many o2n2 plants are on board

two

36

where are the 02n2 plants located

HB1 port side and HB3 stbd side

37

what is the purpose of LOX

aviation breathing oxygen

38

what is the purpose of LIN

wart clinic, freeze seals, shrink fittings

39

what is the required PPE for LOX/LIN

face shield, molders boots, cryogenic overalls, welders gloves

40

what is the storage capacity for LOX/LIN

1500gal LOX, 1500 LIN for each plant

41

where is LOX stored

LOX carts

42

What does the yellow light above o2n2 signify

transfering LOX

43

How many list control pumps are there

2

44

where are the list control pumps located

4a shaft alley

45

what is the capacity of each list control pump

1800 GPM

46

how many list control tanks are there

10

47

where is the list control system operated from

list control panel in DCC

48

how many sewage collection tanks are on board

10

49

how many CHT pumps are on board

four

50

classify the CHT pumps

eddy pumps, rated for 400 GPM

51

what are the three operating modes of the CHT system

inport, transit, at sea

52

at what distance can CHT be pumped overboard

3 miles

53

what dangerous gas is associated with the CHT system

Hydrogen Sulfide

54

what are the three diseases you can get from CHT

cholera, hepatits, typhoid

55

what does hydrogen sulfide smell like

rotten eggs

56

what are comminutors

break down solids before going to the CHT tanks

57

what is the purpose of the A coil

has loops in the vertical fore and aft planes, produces a magentic field that counteracts the magnetic field created by the awthardship induced magnetization

58

what is the purpose of the M coil

main coil, encircles the ship in a horizontal plane near the water line, produces a magnetic field that counteracts the field produced by the vertical permanent and vertical induced magnetization of the ship

59

what is the purpose of the FP-QP coil

used primarily to counter the magnetic field produec by the ships longitudinal permanent magnetization, supplements the M coil

60

what is the purpose of the FP-QI coil

counters the field produced by the ships longitudinal induced magnetization

61

what is the purpose of the degaussing switchboard, and where is it located

contains operator controls, control circuits, and status indicators for all coils, it is functionally divided to facilitate operation and maintenenace

62

what is the purpose of the degaussing remote panel

provides status indicators and a leading switch for emergency manual operation in a remote location

63

what are the two types of fuel oil on board

JP5, MOGAS

64

what is the purpose of the fuel oil service system

provides DFM from the fuel oil service tans to the boiler burners

65

what is the purpose of the fuel oil transfer system

allows the transfer of fuel from different tanks to the fuel service tank

66

what is the purpose of the JP5 service system

provides JP5 from the JP5 fuel tank to the flight deck for aircraft refueling and to the boilers for emergency use

67

what is the purpose of the JP5 transfer system

allows transfer of JP5 from different storage tanks to the service tanks

68

what is the purpose of the JP5 stripping system

allows the removal of sediment and water from the bottom of fuel tanks

69

high pressure air psig

600-5000

70

low pressure air psig

100-125