Symbols Flashcards
What is this symbol?
Non-Dangerous wreck
What is this symbol?
Dangerous Wreck
What is this symbol?
Church
What is this symbol?
Rock with does not cover 1.3m Deep
What is this symbol?
3.3 Fathoms, 6ft in One fathom = 21 ft
What is this symbol?
Rock awash at the level of CD (Chart Datumn)
What is this symbol?
Dangerous under water rock
How many high tides on most days of the month?
Which way does the water flow in high tide?
Which way does the water flow in low tide?
x2 High, x2 Low
North Point - K-Town
K-Town - North Point
What is chart Datumn measured with reference from?
Historical HIGH and LOW tide record
What is this symbol?
Minor Light
What is this symbol?
Major Light - Lighthouse
EXAM QUESTION
Last in file - x4 routes to choose from
Always choose SAFEST and QUICKEST
ANSWER - C
What is this symbol?
T1 typhoon signal - within 800km/400nm of Hong Kong
What is this symbol?
T3 Typhoon Signal- Strong winds expected, blowing speeds 41-62km/hr (22-33knots)
What is this symbol?
T8 Typhoon signal - NE. -Gale or storm force wind
What is this symbol?
Monsoons - Summer/winter monsoon blowing exceeding 40km/hr (20kts)
Beafort Scale Winds
0-4
Mulitiply x3 to get the wind speed
3 - Large wavelets
4 - Small waves
Beafort Scale Winds
5-7
Multiply x4 to get wind speed
5 - Moderate Waves
6 - Large Waves
7 - Very Large waves
M?
S?
R?
Co?
Substrate
Mud
Sand
Rock
Coral
What are these symbols?
Pipeline
Submarine Cable
What is this Symbol
Flood Tide stream with rate
Ebb Tide stream
Describe the chart legend
- Bridge Height
- Direction of Bouyge
- Direction of Traffic Flow
- Prohibited Traffic Flow
