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100 GT COURSE > Module 3: Charts and Pubs > Flashcards

Module 3: Charts and Pubs Flashcards

1
Q

Navigators measure distance using a chart’s lines of ________ and never lines of __________.

A

Latitude

Never Longitude

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2
Q

The useful latitude limit for Mercator projection is about _______.

A

80 degrees

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3
Q

Regardless of chart projection 1 nautical mile is equal to 1 ________.

A

Minute of Latitude

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4
Q

Land features on a chart are measured from _______.

A

Mean High Water (MHW)

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5
Q

_________ is a master list of all symbols and terms found on a chart.

A

Chart No 1

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6
Q

The ___________ contains important information relevant to maritime operations in a region and should be used as a supplement to charts.

A

Coast Pilot

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7
Q

Which government agency publishes the U.S. Coast Pilot?

A. U.S. Coast Guard

B. National Ocean Service

C. National Geospatial-Intelligence Agency

D. Army Corps of Engineers

A

B. National Ocean Service

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8
Q

The depth of water on a chart is indicated as 23 meters. This is equal to __________.

A. 11.5 fathoms
B. 12.6 fathoms
C. 69.0 feet
D. 78.6 feet

A

B. 12.6 fathoms

Formula: Divide by 1.8

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9
Q

The compass rose on a nautical chart indicates both variation and __________.

A. Deviation
B. Annual rate of variation change
C. Compass error
D. Precession

A

B. Annual rate of variation change

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10
Q

Notice to Mariners are published______________.

A. Daily
B. Weekly
C. Monthly
D. Yearly

A

B. Weekly

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11
Q

A set of great circles which pass through the north and south geographic poles are called_____________.

A. Meridians of longitude
B. Parallels of latitude
C. Rhumb lines
D. Equators

A

A. Meridians of longitude

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12
Q

A method of representing a spherical, three dimensional surface on a plane onto a two dimensional sheet of paper is called a__________________.

A. Map
B. Chart
C. Projection
D. Mirror Image

A

C. Projection

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13
Q

An angle between a line connecting one point with another and a base is called a__________________.

A. Tangent Plane
B. Direction
C. Parallel
D. Meridian

A

B. Direction

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14
Q

The compass rose on a chart indicates both true and north magnetic directions.

A. True
B. False

A

A. True

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15
Q

On salt water, distances are measured in___________________.

A. Statue Miles
B. Kilometers
C. Fathoms
D. Nautical Miles

A

D. Nautical Miles

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16
Q

NOS Charts of 1:40,000 or larger scale carry a________________.

A. Logarithmic Speed Scale
B. Nautical mile Scale
C. Yard Scale
D. Statue Mile Scale

A

A. Logarithmic Speed Scale

17
Q

Who publishes charts of the high seas and foreign waters based on its own and other nations surveys?

A. NOAA
B. NOS
C. NGA
D. NIMA

A

C. NGA

18
Q

Some basic information which is included on a chart may include_________________.

A. Type of projection
B. Scale
C. Unit of depth measurement
D. All of the above

A

D. All of the above

19
Q

You should use only the latest edition of a chart to insure safe navigation?

A. True
B. False

A

A. True

20
Q

The edition number and date, month and year of each NOS chart are printed___________________.

A. Upper right corner
B. Lower right corner
C. Upper left corner
D. Lower left corner

A

D. Lower left corner

21
Q

One nautical mile equals ___________________.

A. 10 seconds of longitude.
B. 5 minutes of longitude.
C. 10 minutes of latitude.
D. 1 minute of latitude.

A

D. 1 minute of latitude.

22
Q

The color on a chart which is ideal for reading during night time navigation is________________.

A. Red
B. Blue
C. Magenta
D. Green

A

C. Magenta

23
Q

The publication which can be used for reference in regards to specific abbreviations on a chart is_________________.

A. USCG Light List
B. Coast Pilot
C. Chart 1
D. Tide and Current Tables

A

C. Chart 1

24
Q

The most common projection use for ocean and coastal areas is called a _____________________.

A. Polyconic Projection
B. Tangent Plane Projection
C. Mercator Projection
D. Pilot Projection

A

C. Mercator Projection

25
Q

Depth soundings on a chart are taken at ___________________.

A. Mean higher high water
B. Mean low water
C. Mean lower low water
D. Mean high water

A

C. Mean lower low water

26
Q

Vertical clearance datum for objects on a chart such as a bridge is taken at __________________.

A. Mean lower low water
B. Neap tide high water
C. Mean high water
D. Low water

A

C. Mean high water

27
Q

The nature of the shore is sometimes indicated by various symbols which may include ____________________.

A. Fine dots

B. Double magenta lines

C. Large double black and yellow lines

D. None of the above

A

A. Fine dots

28
Q

A buoy position on a chart is indicated by __________________.

A. Tear drop shape
B. Black diamond
C. Large black dot
D. Small open circle

A

D. Small open circle

29
Q

The abbreviation on a chart of “Obstn” indicates __________________.

A. Obstacle
B. Illusion
C. Obstruction
D. Object

A

C. Obstruction

30
Q

Types of fog signals are not indicated on a chart.

A. True
B. False

A

B. False

31
Q

This chart is the largest scale and most detailed of the series.

A. Harbor Charts
B. Small Craft Charts
C. Coast Charts
D. Special Coast Charts

A

A. Harbor Charts

32
Q

This type of chart combines historical data such as weather, wave heights, prevailing winds but is not intended to be used alone for navigation.

A. Harbor Chart
B. Polyconic Chart
C. General Chart
D. Pilot Chart

A

D. Pilot Chart

33
Q

If using an electronic chart for navigation, it is not necessary to use printed charts.

A. True
B. False

A

B. False

34
Q

A _________________ provides the shortest distance between any two points.

A. Large square
B. Parellel
C. Great circle
D. Rhumb line

A

C. Great Circle

35
Q

“Precautionary Area” SEE NOTE G is a reference to __________________

A. A note on the chart pertaining to specific navigation information for that area.

B. A note in the coast pilot pertaining to specific navigation information for that area.

C. A note in the light list pertaining to specific navigation information for that area.

D. A note in Chart 1 pertaining to specific navigation information for that area.

A

A. A note on the chart pertaining to specific navigation information for that area.

36
Q

A “map” and a “chart” are essentially used for the same navigational purposes.

A. True
B. False

A

B. False

37
Q
A

100 GT COURSE (26 decks)

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