Coastal Riverine Fundamentals Flashcards
What are the required lights on a vessel
- White masthead light
- Red light on the port side
- Green light on starboard side
- White stern light
Define the following terms
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Restricted visibility
Anything that restricts regular visibility
Vessel constrained by draft
A vessel that cannot deviate from the course it is following due to depth/width of the waterway
Vessel restricted in her ability to maneuver
Unable to maneuver out of the way or another vessel
Vessel not under command
A vessel unable to maneuver out of the way of another vessel
Power driven vessel
Any vessel propelled by machinery
Short blast and prolonged blast
Short: 1 second blast
Prolonged: 4-6 second blast
Bell
Carried on all vessels over 12 meters in length
Gong
Carried on all vessels over 100 meters in length
High tide
Maximum height of water from the rising tide
Low tide
Minimum height of water from the outgoing tide
Mean high water
The average height of high tide measured over 19 years
Mean low water
The average height of low tide over 19 yearsb
Spring tide
Higher than average high tide
Lower than average low tide
Neap tide
High and low tides are lower than normal
Flood current
Movement of water is toward shore
Ebb current
Movement of water is away from shoreb
Slack water
Period of time with no current
Set
The direction of the current
Drift
The speed of the current
Overtaking
When in doubt, assume you are overtaking
Head on collision both International and inland
Each vessel should alter its course to starboard
Define compass bearing
A bearing obtained by using a magnetic compass
