WorksheetsQuiz on Automatic Identification System (AIS)
Total questions: 40
Worksheet time: 20mins
What does AIS stand for?
Automated Information System
Automatic Identification System
Auxiliary Integrated System
Advanced International System
What type of system is AIS?
A radar system
A broadcast transponder system
A sonar system
A satellite navigation system
How is AIS information communicated?
Through a VHF mobile maritime band
Using satellite signals only
Via radar waves
Through Morse code
What is the typical update rate for a Class "A" AIS unit when the vessel is underway?
Every 6 minutes
Every 3 minutes
Every 2 to 10 seconds
Every 30 seconds
What is the power level of a Class "A" AIS unit?
12.5 watts
300 watts
500 watts
14 knots
What are the two dedicated VHF channels used by AIS?
Channel 87A and Channel 88A
Channel 87B and Channel 88B
Channel 70 and Channel 16
Channel 1 and Channel 2
The primary purpose of the AIS DSC VHF receiver is:
to receive and process digital selective calling and automatic identification system signals
to provide weather updates
to play entertainment music
to control engine speed
What technology does AIS use to manage its high broadcast rate?
Time Division Multiple Access (TDMA)
Frequency Division Multiple Access (FDMA)
Self Organizing Time Division Multiple Access (SOTDMA)
Code Division Multiple Access (CDMA)
How many discrete time slots are available in each one-minute frame on each frequency channel?
60
256
2,250
40
What is the approximate line-of-sight limitation for the AIS frequency?
10 miles
20 miles
40 miles
100 miles
What is the primary purpose of the GNSS receiver in an AIS station?
To provide ship's position
To supply a time reference for synchronization
To transmit data to other vessels
To display a graphical representation of other vessels
According to the document, what should AIS NOT be used for?
Identifying ships
Collision avoidance
Tracking other vessels
Identifying navigational marks
What is the name of the system that uses satellites to expand AIS coverage beyond line-of-sight?
S-AIS
GPS
VTS
ECDIS
What are the three categories of information sent from an AIS-equipped ship?
General, Technical, and Weather
Static, Dynamic, and Voyage-related
Positional, Speed, and Heading
Name, Call Sign, and MMSI number
Which of the following is considered Static Information, broadcast every 6 minutes?
Ship's position
Course Over Ground (COG)
Ship's draught
IMO number
What information is included in the Dynamic Information category?
Destination and ETA
Length and beam
Ship's position with accuracy indication
Type of cargo
When is Voyage-related information broadcast?
Every 10 seconds
Every 6 minutes, when data is amended, or on request
Every 2 to 10 seconds
Continuously
According to SOLAS Regulation 19.2.4, which of the following vessels is NOT required to have AIS?
All passenger ships
Cargo ships of 500 gross tonnage and upwards not engaged on international voyages
Pleasure crafts
All ships of 300 gross tonnage and upwards engaged on international voyages
What does the Built-in Integrity Test (BIIT) in an AIS unit do?
Provides a graphical display of vessels
Transmits information to coastal authorities
Continuously checks the integrity and operation of the unit
Reserves time slots for transmission
What is a key feature of SOTDMA compared to standard TDMA?
It requires a central station for time synchronization.
It's designed for Class B AIS devices.
What does AIS stand for?
Automatic Information System
Automatic Identification System
Automated Identification Signal
Advanced Information System
What type of system is AIS?
A. A point-to-point communication system
B. A broadcast transponder system
C. A satellite relay system
D. A private network system
How is AIS information communicated?
Through a VHF mobile maritime band
Through satellite uplink
Through cellular networks
Through HF radio
What is the typical update rate for a Class "A" AIS unit when the vessel is underway?
Every 1 to 5 seconds
Every 5 to 15 seconds
Every 2 to 10 seconds
Every 10 to 20 seconds
What is the power level of a Class "A" AIS unit?
12.5 watts
25 watts
5 watts
50 watts
What are the two dedicated VHF channels used by AIS?
Channel 16 and Channel 70
Channel 87B and Channel 88B
Channel 12 and Channel 13
Channel 6 and Channel 8
What is the primary purpose of the AIS DSC VHF receiver?
To transmit distress signals
To receive channel management commands for regional area designation
To monitor weather broadcasts
To provide voice communication
What technology does AIS use to manage its high broadcast rate?
Frequency Division Multiple Access (FDMA)
Code Division Multiple Access (CDMA)
Self Organizing Time Division Multiple Access (SOTDMA)
Carrier Sense Multiple Access (CSMA)
How many discrete time slots are available in each one-minute frame on each frequency channel?
1,000
1,500
2,250
3,000
What is the approximate line-of-sight limitation for the AIS frequency?
10 miles
20 miles
40 miles
What is the primary purpose of the GNSS receiver in an AIS station?
To provide backup navigation
To supply a time reference for synchronization
To increase transmission range
According to the document, what should AIS NOT be used for?
Search and rescue
Collision avoidance
Vessel tracking
What is the name of the system that uses satellites to expand AIS coverage beyond line-of-sight?
S-AIS
G-AIS
E-AIS
What are the three categories of information sent from an AIS-equipped ship?
Static, Manual, and Voyage-related
Static, Dynamic, and Voyage-related
Dynamic, Manual, and Static
Which of the following is considered Static Information, broadcast every 6 minutes?
Ship's position
Destination
ETA
IMO number
What information is included in the Dynamic Information category?
Ship's name
Destination
Ship's position with accuracy indication
When is Voyage-related information broadcast?
Every 12 minutes
Every 6 minutes, when data is amended, or on request
Every 3 minutes
According to SOLAS Regulation 19.2.4, which of the following vessels is NOT required to have AIS?
Cargo ships
Passenger ships
Pleasure crafts
What does the Built-in Integrity Test (BIIT) in an AIS unit do?
Checks the power supply
Monitors external communications
Continuously checks the integrity and operation of the unit
Updates the software
What is a key feature of SOTDMA compared to standard TDMA?
Increases data rate
Reduces power consumption
Allows for manual slot assignment
It permits users to scan for and reserve their own slots.
