NAV 1 QUIZ 1

How does GPS work?

• GPS determines location using 3D trilateration

• GPS uses cellular networks for positioning.

• GPS uses radar signals to determine location.

• GPS calculates location based on user input.

A type of electronic chart that is a scanned image of a paper chart

• Electronic Navigational Chart

• Raster Navigational Chart

• Scanned Navigational Chart

• Vector Navigational Chart

Which of the following best describes a limitation of AIS?

• Enhanced user accessibility.
• May display outdated data

• High cost of implementation.
• Only shows ships larger than 500 GT.

What does RADAR stands for?

Which of the following information of the AIS is a Static Information?

• MMSI Number

• Speed

• Range

• Estimated time of Arrival (ETA)

• Bearing

Which vessels are required to carry AIS under SOLAS regulations?

• Ships of 2500 GT and above on international voyages

• All vessels

• All ships on international voyages

• Ships over 300 GT on international voyages

How many meters is 1 Nautical Mile?

An ECDIS alarm is triggered when the ship:

• Encounters a risk of collision with other vessels

• Approaches the safety contour

• is experiencing bad weather

• changes its course

What is the main information ARPA provides for a tracked target?

• CPA and TCPA

• Set and drift

• Position coordinates of the tracked target.

• Dangers around the tracked target

Why is echo sounder information important in pilotage waters?

• Echo Sounders are used for ship detection and maintaining safe distance

• Echo sounders are primarily used for underwater photography.
• Echo Sounders are used for under-keel clearance

• Echo sounders are used for ballast tank sounding