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PVOC Grade 2 > Symbols > Flashcards

Symbols Flashcards

1
Q

What is this symbol?

A

Non-Dangerous wreck

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2
Q

What is this symbol?

A

Dangerous Wreck

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3
Q

What is this symbol?

A

Church

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4
Q

What is this symbol?

A

Rock with does not cover 1.3m Deep

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5
Q

What is this symbol?

A

3.3 Fathoms, 6ft in One fathom = 21 ft

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6
Q

What is this symbol?

A

Rock awash at the level of CD (Chart Datumn)

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7
Q

What is this symbol?

A

Dangerous under water rock

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8
Q

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?

A

x2 High, x2 Low

North Point - K-Town

K-Town - North Point

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9
Q

What is chart Datumn measured with reference from?

A

Historical HIGH and LOW tide record

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10
Q

What is this symbol?

A

Minor Light

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11
Q

What is this symbol?

A

Major Light - Lighthouse

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12
Q

EXAM QUESTION

Last in file - x4 routes to choose from

A

Always choose SAFEST and QUICKEST

ANSWER - C

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13
Q

What is this symbol?

A

T1 typhoon signal - within 800km/400nm of Hong Kong

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14
Q

What is this symbol?

A

T3 Typhoon Signal- Strong winds expected, blowing speeds 41-62km/hr (22-33knots)

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15
Q

What is this symbol?

A

T8 Typhoon signal - NE. -Gale or storm force wind

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16
Q

What is this symbol?

A

Monsoons - Summer/winter monsoon blowing exceeding 40km/hr (20kts)

17
Q

Beafort Scale Winds

0-4

A

Mulitiply x3 to get the wind speed

3 - Large wavelets

4 - Small waves

18
Q

Beafort Scale Winds

5-7

A

Multiply x4 to get wind speed

5 - Moderate Waves

6 - Large Waves

7 - Very Large waves

19
Q

M?

S?

R?

Co?

A

Substrate

Mud

Sand

Rock

Coral

20
Q

What are these symbols?

A

Pipeline

Submarine Cable

21
Q

What is this Symbol

A

Flood Tide stream with rate

Ebb Tide stream

22
Q

Describe the chart legend

A
  1. Bridge Height
  2. Direction of Bouyge
  3. Direction of Traffic Flow
  4. Prohibited Traffic Flow

PVOC Grade 2 (6 decks)

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