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Important Highlighted Flashcards

1
Q

For charts the smaller the ratio the more detailed the chart is
Example: 1; 50,000 is a harbor chart

A
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2
Q

Longitude lines are also called?

A

Meridian lines

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3
Q

How to remember about safe speed:

Very
Drunk
Mariners
Buy
Whisky
Daily

A

Determining safe speed
Visibility
Density (of traffic)
Maneuverability
Back scatter (background light)
Wind- sea current
Draft

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4
Q

Circular shaped buoys

A

Indicates that certain operating restrictions are in effect within the marked area (reduce speed, etc)

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5
Q

Isophase lights

A

A light where the duration s of light and darkness are equal
Example: ⬛️⬜️⬛️⬜️⬛️⬜️

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6
Q

Safe water buoy shows?

A

Morse code lighting (A)

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7
Q

Safe water buoy shows?

A

Morse code lighting (A)

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8
Q

Topics in the coast pilot include?

A

Channel descriptions
Anchorages
Nav regulations
Dangers
Small craft facilities

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9
Q

Neap tides

A

When the moon is in quadrature (quarter moon) which results in lower tidal ranges

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10
Q

Spring tides

A

Full and new moons- The sun’s gravitational pull lines up with the moon, which results in higher tides

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11
Q

Range for tides

A

The difference between the heights of a successive high tide and low tide , found by subtracting the height of low water from the height of high water

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12
Q

Stand of the tide

A

The period at high or low tide during which there is no change in the height of the water

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13
Q

Flood stream (which direction in regards to tides)

A

Horizontal movement of water toward land following a low tide

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14
Q

Ebb (stream) - which direction of tide?

A

Horizontal movement of water away from land following a high tide

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15
Q

Slack water (referring to current)

A

BEST TIME TO MOOR YOUR BOAT (on test)
The period of minimum or no current

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16
Q

Running fix

A

A position made by using two or more lines of position (LOP)

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17
Q

RADAR

A

Radio detection and ranging

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18
Q

Target range (in regards to RADAR)

A

The most accurate determination made by radar is that of range (distance)- more accurate than bearings or directions

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19
Q

Cyclone

A

Related to bad weather- low pressure area or storm . Usually means cloudy weather and precipitation

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20
Q

Low pressure cyclone (what type of weather?)

A

Not to be confused with tropical cyclones of the Indian Ocean, they bring about bad weather

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21
Q

Veering wind (which direction?)

A

Winds which shift in a clockwise direction in the northern hemisphere

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22
Q

Backing wind (which direction?)

A

Winds which shift in counterclockwise direction in the northern hemisphere

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23
Q

Types of clouds

A

Cirro- high
Nimbo- rain
Cúmulo- fluffy
Strato- layered

24
Q

Fog (when does it occur?)

A

Fog occurs when the difference between temperature and dew point is less than 5 degrees and decreasing. It’s the Condensation of water vapor close to the surface of water or land. It requires moist air and a cooling medium

25
Barometer
Values are indicated in both millibars and inches of mercury
26
Dew point
The temperature to which air must be cooled at a constant: pressure/water vapor content to reach saturation
27
Navigable semi circle
Bring the wind on the starboard quarter(135 relative) hold course and make as much way as possible.
28
Manila line
Strongest of natural fibers.
29
Synthetic fiber line
Resistant to rot and mildew
30
Nylon line
Is the strongest of the synthetic fibers , elasticity and resistance to weather . Best suitable to withstand sudden shock loads
31
Dacron
Very little stretch
32
Fid
A tapered wood pin used to splice natural or synthetic line
33
Marlin spike
A tapered metal pin used to splice wire or to open shackles
34
VHF
VHF - from 156 to 174 MHz used for line of sight communications. 20 mile range
35
Channel 13
Navigational ship to ship also used at locks and bridges
36
Swivel
Attaches the chafing chain to the detachable link allowing the line to spin freely.
37
Line and chain length/scope recommendations
7:1
38
In bad weather with heavy winds and currents the anchor rode scope should be?
10:1
39
What to do when dragging anchor
Increase your scope Use your engine and set anchor or set another anchor Get underway Set a sentinel (Kellet’s, anchor angel, or buddies)
40
Weighing anchor means?
Lifting it from the bottom
41
Veering the anchor?
Pay out more chain or line
42
Submarines may display what lights?
Intermediate flashing amber (yellow) light with a sequence of one flash per second for 3 seconds o by a 3 sec off period
43
Underway means?
A vessel is not moored, anchored or made fast to the shore or aground
44
Rule 15- inland crossing
On the Great Lakes , western rivers or waters specified by the secretary a power driven vessel crossing a River shall keep out of the way of a power driven vessel ascending or descending the river
45
Air cushion vessel when operating in non displacement mode shall in addition to the lights prescribed exhibit
An all around flashing yellow light WIG craft is all around flashing red light
46
Yellow over yellow I’m pushing or hip towing a fellow
Can have two yellow instead of a stern
47
Rule 24- inland (Mississippi)
On the western rivers ( except below the Huey p long bridge on the Mississippi) a power driven vessel when pushing ahead or towing along side shall exhibit Sidelights Two towing lights in a vertical line NO MASTHEAD LIGHT
48
Which vessel is not recognized by inland rules?
CBD Constrained by draft
49
A vessel aground shall exhibit
2 all around red lights in a vertical line Three balls in a vertical line
50
Four vessels that may not impede passage in a narrow channel
Sailing 20 meter Crossing Fishing
51
Four vessels that may not impede passage in a narrow channel
Sailing 20 meter Crossing Fishing
52
Five vessels that never show masthead lights
Pilot Sailing Being Towed NUC fishing
53
One prolonged blast followed by 3 short blasts in fog indicates a
Manned vessel being towed
54
Two prolonged blasts every two minutes in fog indicates
A power driven vessel underway and NOT making way through the water
55
3 strokes of a bell, rapid ringing of the bell and three more strokes of the bell is sounded by?
A vessel aground less than 100 meters in the fog
56
A vessel of less than 20 meters or a sailing vessel shall not impede the safe passage of a power driven vessel following a traffic lane

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