Ic Stuff Flashcards
Purpose of the em log?
Provide the speed of the ship
What circuit is designated for the em log
Circuit y
How many parts does the em log have
3
What are the parts of the em log
Rodmeter/pitsword
Indicator/transmitter
Sea valve
What’re the parts of the pitsword
Junction box
Sensing element
Rod weldment
How does the pitsword detect the speed of the ship
Emi/electromagnetic induction
How many volts does the signal voltage produce?
325 microvolts per knot
At what speed can the ship raise and lower the pitsword
Below 10 knots
What’re the 3 modes for the indicator/transmitter
Log mode
Dummy mode
Manual mode
Which mode is the normal underway mode for the em log
Log mode
Which mode is used when the pitsword is raised
Dummy mode
In dummy mode how is the speed entered
By the remote control unit in fwd eos
When do you use manual mode
When dummy and log mode don’t work
What is used to change between the three modes of op of the em log
Indicator/transmitter
What does the indicator/transmitter display besides the speed
Told nautical miles traveled
What is the purpose of the sea valve
Provide water tight integrity of the underwater log trunk
Where is the remote control unit located
Fwd eos
How many wsn 7 gyros does bhr have
2
Where are the two wsn 7 gyros located
Fwd ic and aft ic
What signals do the ship’s gyro provide?
Heading
Pitch and roll
Latitude and longitude
What signals does the gyro not provide
Range and bearing
Are there spinning parts in the wsn 7 gyro
No
What type of gyros are the wsn 7’s
Ring laser
How many types of gyro repeaters are there? What are they
2, vital and non vital
Which type of repeaters are used to steer the ship
Vital repeaters
Where are the vital repeaters located
Ships control console Aft steering Secondary conning station Fwd ic Aft ic
Who many synchro signal amplifiers (SSA) do we have
4
Which radars have SSA’s
SPN 43
SPS 48
SPS 49
SPS 67
What is the purpose of the SSA’s
To amplify the ships heading signal from the gyros to the radars
Where are the 6 tv security cameras located
Hanger bay
Upper and lower v
Flight deck
Engineering spaces
Which circuits are designated for the ships tv system
14 tv or 27 tv
What does SITE stand for
Ship’s information training, and entertainment
