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ESWS Board > IC > Flashcards

IC Flashcards

1
Q

What is the purpose of the EM log

A

Measures the speed of the ship through water

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2
Q

What is the circuit designation for the EM log?

A

Circuit Y

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3
Q

What are the five parts of the EM log?

A 
Rod meter/pit sword
Indicator/transmitter
Sea valve
Remote controller
Indicator type 1/type 2
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4
Q

How long is the rod meter/pit sword

A

6 feet in length

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5
Q

Which part of the pit sword houses the electrical wiring of the rod meter

A

Junction box

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6
Q

Which part of the pit sword is the lower part of the rod meter and is made of fiberglass

A

Sensing element assembly

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7
Q

Which part of the pit sword is the upper part of the rod meter and is made of stainless steel

A

Rod weldment

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8
Q

When the rod meter is lowered into the water, what is produced by the sensing unit on the fiberglass end?

A

Electromagnetic field

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9
Q

The Electromagnetic field is used to detect changes in the ships speed by

A

Electromagnetic induction (EMI)

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10
Q

The monel buttons (sensing unit), one on each side of the rod meter, is made of what?

A

Nickel copper alloy

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11
Q

The signal voltage produced by the rod meter is approximately what?

A

325 microvolts per knot

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12
Q

The rod meter is located in the pitsword trunk inside what?

A

FWD JP5 pump room

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13
Q

The BHR has what type of pitsword?

A

Retractable pitsword (this means we are able to pull our pit sword into the hull of the ship)

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14
Q

The rod meter can only be raised and lowered when speed is under what?

A

Under 10 knots

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15
Q

What are the three modes of the indicator/transmitter?

A

Log mode or underwater mode
Dummy mode
Manual mode

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16
Q

What is the normal underway mode for the EM log?

A

Log mode or underwater mode

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17
Q

What is the mode used when the pit sword is raised (during leaving and entering Port) or broken

A

Dummy mode

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18
Q

In dummy mode, the speed is entered by the remote control unit in what location?

A

FWD EOS

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19
Q

What is used when log mode and dummy mode do not work?

A

Manual mode

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20
Q

What is the knob on the indicator/transmitter that can be turned to input the ship speed?

A

Manual knob

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21
Q

What are the parts of the indicator/transmitter?

A

Case/power supply
Electronica unit assembly
Mechanical unit assembly
Calibration assembly

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22
Q

What receives a signal from the rod meter and amplifies the error signal?

A

Indicator/transmitter

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23
Q

What displays the ship speed through the water?

A

Indicator/transmitter

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24
Q

The indicator/transmitter Also displays the

A

Total nautical miles traveled

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25
What transmits the ship speed to various repeaters and other navigational equipment through the ship?
Indicator/transmitter
26
What is also used to change between the three modes of operation?
Indicator/transmitter
27
The indicator/transmitter is located where?
FWD IC
28
What is used to provide water tight integrity of the underwater log truck?
Sea valve
29
The sea valve is open and closed to raise and lower what?
Pit sword
30
The sea valve is also located in the what?
Pit sword trunk in the FWD JP5 pump room
31
Where is the remote control unit located?
FWD EOS
32
What is used while indicator/ transmitter is in dummy mode?
Remote control unit
33
The BHR has two WSN7 gyros located where?
FWD IC | AFT IC
34
What is the ships primary Gyro?
Gyro in the AFT IC
35
What is the ships secondary Gyro?
Gyro in the FWD IC
36
What are the signals provided by the ships gyrocompass?
Heading, pitch and roll, latitude and longitude
37
The gyrocompass does not provide what?
Range and bearing
38
What are the ring laser gyros so there are no spinning parts inside of the Gyro?
WSN7
39
What’s the text changes in the ships heading, pitch and roll?
Lasers
40
What are the indicators that display the ships heading from the ships gyrocompass?
Gyro repeaters
41
What are the two different types of Gyro repeaters?
Vital and non-vital
42
Which Gyro repeaters are used to steer the ship?
Vital repeaters
43
What are the locations of the vital repeaters?
``` Ships control console AFT steering Secondary conning station FWD IC AFT IC ```
44
How many Synchro signal amplifier’s or SSA do we have on board?
``` 4 (one for each of the FF radars) AN/SPN 43 AN/SPS 48 AN/SPS 49 AN/SPS 47 ```
45
What is the purpose of the SSA’S?
Amplify the ships heading signal from the Gyro into radars
46
The security cameras around the ship or also known as what?
6TV
47
What are the locations of 6TV?
Hangar bay Upper and lower V Flight deck
48
What are the Engineering cameras?
2TV
49
What is the circuit designation for the ships TV system?
14 TV or 27 TV
50
What does SITE Stand for?
Ships information, training, and entertainment
51
What does TV DTS mean?
Direct to sailor
52
Which channels contain training, bingo, and port briefs?
Channels 2-4
53
Which channels contain AFN channels (AFN sports, AFN news, and AFN prime)?
Channels 5-7
54
Which channels are movie channels?
Channels 8-11
55
2TV, 6TV, and 14/29TV Are located where?
SITE (ships information training and entertainment)
56
23 TV Is known as what?
SVDS or secure video distribution system
57
Where is SVDS located?
JIC or joint intelligence center
58
SVDS is also known as what?
CKT9
59
What are the examples of videos shown on 23 TV?
``` ECDIS SPA 25G METOC (weather channel) Video scout VMS (basically a map of where the ship is located) ```
60
What is the 1MC used for?
General announcing
61
What is the 2MC used for?
Engineering
62
What is the 3MC used for?
Hangar bay
63
What is the 5MC used for?
Flight deck
64
What is the 6MC used for?
Ship to ship
65
What is the 10 MC used for?
Well deck
66
What is the 18 MC used for?
Bridge to wing
67
What is the 21MC used for?
Captains
68
What is the 46MC used for?
Ammo
69
What is the X2JZ used for?
Damage control
70
What is the X50J used for?
AFFF
71
X40J
Casualty Comms
72
What is the X5J used for?
Engineering
73
What is the X1J used for?
Maneuvering, docking
74
Where is the 1MC powered from?
AFT IC
75
Where is the 3MC, 5MC, 6MC, 10 MC powered from?
Audio amp room

ESWS Board (11 decks)

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