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WorksheetsGPS and DGPS in Maritime Navigation
Total questions: 15
Worksheet time: 8mins
What does GPS stand for?
Global Precision System
Geographic Positioning System
Global Positioning System
Geographic Precision System
SOLAS requires vessels to have backup systems in case GPS fails.
True – Redundancy ensures continuous safe navigation
False – SOLAS only mandates radar installation
True – GPS is optional under SOLAS
False – Backup systems are not required
GPS and DGPS help prevent grounding and collisions by providing accurate positioning.
True – They offer real-time location and course data
False – They only assist in cargo tracking
True – They are used exclusively for aerial navigation
False – They are not recognized under SOLAS provisions
What is the primary function of DGPS?
To transmit vessel identity to shore stations
To enhance GPS accuracy using correction signals
To replace radar in low visibility conditions
To display electronic nautical charts
GPS and DGPS must be integrated with other navigational tools for reliability.
True – Integration supports informed decision-making
False – They function independently of other systems
True – Only DGPS requires integration
False – Integration is not part of SOLAS compliance
Which SOLAS regulation mandates the installation of GPS and DGPS?
Chapter V, Regulation 19
Chapter VI, Regulation 10
Chapter IV, Regulation 5
Chapter III, Regulation 12
What is the main contribution of GPS to maritime safety?
It monitors maritime traffic from coastal stations
It provides collision risk assessment using radar
It ensures accurate location and route tracking
It automates chart plotting and voyage planning
Which system improves GPS accuracy by correcting errors caused by atmospheric interference?
AIS
ARPA
DGPS
ECDIS
What type of data does GPS provide to vessels?
Position, speed, and course
Radar echoes and target tracking
Vessel identity and navigational status
Weather conditions and forecasts
Which system is required by SOLAS to ensure redundancy in navigation?
GPS and DGPS
Radar and ARPA
AIS and ECDIS
None of the above
What is the purpose of integrating GPS and DGPS with other navigational systems?
To ensure redundancy and reliable decision-making
To comply with radar frequency standards
To reduce the need for manual plotting
To transmit data to coastal authorities
DGPS improves safety by transmitting vessel identity to other ships.
False – That function is performed by AIS
True – DGPS includes identity transmission
False – GPS handles all safety-related transmissions
True – DGPS replaces AIS in modern vessels
What is the primary purpose of AIS in maritime navigation?
To enhance GPS accuracy using correction signals
To transmit vessel identity and navigational data
To display electronic nautical charts
To detect nearby vessels using radar
Which system provides real-time positioning data for route monitoring?
AIS
DGPS
GPS
ARPA
DGPS is a standalone system that does not rely on GPS signals.
False – DGPS depends on GPS and adds correction signals
True – DGPS operates independently of GPS
False – DGPS is used only for radar calibration
True – DGPS is part of the AIS framework
