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Power Squadron > Conning > Flashcards

Conning Flashcards

0
Q

What is variation?

A

The angular difference between magnetic and true north.

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1
Q

What does the acronym TVMDC stand for?

A 
True (direction, north) 
Variation 
Magnetic 
Deviation 
Compass (direction, degrees)

Tv makes dull children - Thanks Very Much District Commander

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2
Q

What is deviation?

A

The angular difference between magnetic and compass north, as caused by proximity of ferrous object.

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3
Q

When converting from true to compass direction, is eastern variation added or subtracted from the true (chart) direction?

A

Subtracted. East is least and West is best.

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4
Q

What is the limerick to remember the operation utilized when putting true direction and variation together to come up with magnetic direction?

A

East is least and West is best.

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5
Q

What is a range?

A

Two identifiable objects in a line. Man made such as Silver Islet or natural such as islands.

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6
Q

When going from True to Compass direction, is it correcting or uncorrecting?

A

Uncorrecting. You correct to ‘make it’ True.

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7
Q

When using range markers, how should you correct your course?

A

Pointing at the bottom range.

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8
Q

When going from magnetic to true direction, what is the conversion called?

A

Correcting.

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9
Q

Describe a West cardinal buoy.

A

YBY, flash 9 triangles pointing towards center.

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10
Q

Describe a East cardinal buoy.

A

BYB flashing every 3 seconds. Safe water to East. Two triangles bases together.

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11
Q

Sailing in the dark, you see a white light flashing every six seconds.

A

South cardinal buoy. YB. Two triangles pointing down. Safe water to south.

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12
Q

On the chart you see Q(6)+L Fl 15 s What does that mean?

A

Quick six white flashes plus one long flash every 15 seconds.

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15
Q

What is the difference between conning and navigation?

A

Conning is by eye on the water, navigation should be before you go out on the water, with a chart.

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16
Q

What colour is a starboard buoy?

A

Red

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17
Q

What colour is a port buoy?

A

Green

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18
Q

What hazards are not written on charts?

A

Deadheads, currents, weather, whitewater, dams.

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19
Q

What is piloting?

A

Navigating on small inland lakes and coastal waters. You will therefor always have aids because you will always be able to see land.

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20
Q

How many degrees is west?

A

270

21
Q

If magnetic north lies to the east of true north, what is variation said to be?

A

Easterly

22
Q

If magnetic north lies to the west of true north, what is variation said to be?

A

Westerly

23
Q

Where/what is the lubbers line?

A

Direction you are heading. Parallel to boat centre. A reference line on the compass.

24
Q

What does 360* represent?

A

Nothing it doesn’t exist.

25
Q

What is the difference between a map and a chart?

A

Map is for land, chart is for water.

26
Q

What should you remember when installing a compass?

A

Parallel to lubbers line. Visible to captain. Well fastened.

27
Q

Where is the prime meridian? Why?

A

Greenwich. England was most powerful country.

28
Q

What is a meridian?

A

Longitude.

29
Q

Why can you use meridians to measure distance?

A

Because they are parallel to the equateur.

30
Q

How many nautical miles are in a minute of latitude?

A

1

31
Q

What size area does a large scale chart show?

A

Small area. Close up.

32
Q

What size area does a small scale chart show?

A

Large area.

33
Q

What do the letters TRS indicate?

A

Towers

34
Q

Variation is different for each:
Area
Boat
Compass

A

Boat

35
Q

What is the purpose of a marine compass?

A

To help a boater find directions

36
Q

When a boat turns, the compass card…

A

Stays in place. It is gimballed to always point North, the boat moves around it.

37
Q

What is the maximum possible latitude North or South of the equator?

A

90*

38
Q

What are the imaginary lines parallel to the equator called?

A

Parallels of latitude.

39
Q

What component of the global grid?

A

The east-west component.

40
Q

What city does the prime meridian pass through?

A

Greenwich

41
Q

How are the lines of longitude named?

A

East or west of Greenwich to 180.

42
Q

What is latitude?

A

stuff

43
Q

What is longitude

A

stuff

44
Q

What is the scale used to measure distance of a Mercator chart?

A

The latitude scale.

47
Q

What side should you pass a white and red Fairway buoy?

A

Either. Port preferred.

48
Q

What does the limerick ‘Red Right Returning’ mean?

A

Keep red (starboard) buoys to the right (starboard) hand side of your boat when returning (entering into) a harbour.

Power Squadron (5 decks)

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