BRIDGE EQUIPMENTS

Question 1

GPS FAILURE

https://secondmatespot.blogspot.com/2020/10/GPSFailure.html

Answer 1

*Inform Master.
*Switch over to GPS 2 (If fitted & working).
*Note down the last position obtained from GPS.
*Obtain the position of the vessel from Celestial or *Terrestrial means.
* Increase the frequency of position fixing.
*Plot the position of the vessel in ECDIS.
*Inform VTS / Port Authority & Company Agent.
*Monitor the position of vessels in vicinity.
*Navigate the ship clear from any proximity to navigational hazard.
*Try to rectify the GPS by referring the GPS *Manufacturers Manual.
*Keep a record of all events.

Question 2

Bridge equipments failrures

Answer 2

https://secondmatespot.blogspot.com/

Question 3

limitations ecdis

Answer 3

https://imunotes.in/limitations-of-ecdis/

Question 4

arpa limitations

Answer 4

find

Question 5

radar limitations

Answer 5

find

Question 6

Sextant

https://www.youtube.com/watch?v=x6Vxq1v31-A

Answer 6

Instrument error
perpendicular error - side mirror is not perpedicular
side error - when we see horizon its mis alligned that is side error
index error - after correcting side error see whether its on or off add or sub in calculation

Question 7

What to tell 2nd off who is over reliant on ecdis

Answer 7

Output as good as input

first a fall over reliant on any device is not recommended mainly bcoz

Lack of situational awareness
# if not in proper scale it wil create illusion
# superimposing error
# maib reports suggest that over releiant of ecdis is very dangerous
# cyber security .