AIS (Automatic Identification System) (CD # 109)
Chapter 1 - Introduction to AIS
What kind of system is AIS? [A - Transponder system]
What was the start date for implementation of AIS? [C - July 1st, 2002]
Seen from an operational point of view, how will you describe the AIS? [C - AIS is an automatic system]
The AIS information transmitted by a ship can be divided in how many types? [B - 3]
Chapter 2 - Technical introduction
Can AIS with MKD operate as a standalone system? [B - Yes]
In case of AIS overload, what can you expect? [C - Targets far away drop out]
How much can the AIS broadcast mode be overloaded without any significant operational effect? [C - 400 - 500%]
The dynamic information update rate depends on? [D - Ship speed]
The static information is updated every? [C - Every 6 minutes]
The pilot plug should be installed where? [C - On the pilots conning position]
Chapter 3 - Operation of AIS
The AIS transponder is designed to transmit information? [A - Automatically]
When should the AIS transponder normally be activated? [D - Always]
The AIS transmitted information is divided in how many main groups? [B - Dynamic data, static data and voyage related data]
How is the voyage information updated? [C - Manually]
How is the AIS technical status checked? [A - Automatically]
Which parameters define dangerous target? [D - CPA/TCPA]
Suppressing a dangerous target can only be done? [C - Temporarily]
The lost target symbol is shown where? [B - In the last known target position]
Chapter 4 - Use of AIS information
What is the IMO minimum display requirements for AIS? [D - AIS information on MKD]
The shape of the raw radar echo gives? [B - Normally not a true representation of the dimensions of a target]
When the ship alters course the hull experience how many actions? [A - 2]
AIS aims to achieve a positional accuracy better than how many meters when associated with DGNSS? [C - 10 m]
What is the best collision avoidance system? [D - Early action]
What is considered the main VTS sensor for detection of ships? [B - Radar]
Chapter 5 - Limitations and possible future applications of AIS
When using AIS the OOW should be aware of? [B - AIS information may not be correct]
What is the accuracy of the AIS information? [D - The accuracy is as good as the transmitted accuracy]
What happened when an AIS sensor fails? [B - AIS display “not available”]
What is important to remember when using AIS for collision avoidance? [A - AIS may not give a complete picture of the traffic situation]
Chapter 6 - Assessment
When were the performance standards for AIS adopted? [C - 1998]
What is the ITU ship reporting capacity for AIS? [D - 4500]
The selected target symbol represents? [A - A manual selected target]
AIS position information accuracy is only as good as? [B - The information transmitted from each ship]
Where should the pilot port be located? [C - Close to the pilots normal working position]
In case of an AIS sensor failure, the following should happen? [C - The AIS automatically display a message]
What can happen in case of AIS overload? [D - Targets far away will drop out]
The technical status of the AIS is checked? [B - Automatically]
When is the static information feed into the AIS? [B - During installation]
A selected target is a target selected by? [A - The operator]
How many target symbols are used in connection with AIS targets on a radar display? [D - 5]
What are the criteria for a dangerous target in AIS? [B - A target calculated to violate preset CPA/TCPA limits]