Nav 05 / 06 - Position on the Earth

Question 1

Review Questions

Define Direction

Answer 1

The position of one point in space relative to another, without reference to the distance between them.

Question 2

Review Questions

Define True Direction

Answer 2

Direction measured with reference to the direction of the north geographic pole

Question 3

Review Questions

Define magnetic direction

Answer 3

Direction measured with reference to the direction of Magnetic North at the place

Question 4

Review Questions

Define compass direction

Answer 4

Direction measured with respect to compass north

Question 5

Review Questions

Define Variation

Answer 5

Horizontal angle between true and magnetic north

Question 6

Review Questions

Define Variation

Answer 6

Horizontal angle between compass north and magnetic north

Question 7

Navigation is the process of knowing how to find out:

Where you are
Where you should be
What else?

Answer 7

How to match the two

Question 8

True of false

Knowing and expressing your geographic position is not important to navigation.

Answer 8

False, knowing and expressing your geographic position is fundamental to navigation.

Question 9

What are the methods discussed of expressing your position?

Answer 9

Place names
Bearing and distance
Grid systems:
     GEOREF
     Latitude and longitude

Question 10

What are some advantages and disadvantages of using Place Names to express position?

Answer 10

Advantages: Quick, easy and saves time

Disadvantage: North everyone may be familiar with selected locations

Question 11

The following are examples of which method to express position:

50 Km North of Winnipeg
12 SM SW of Gimli
235 ° T “X” 20 NM (20 NM from point X on a bearing of 235 ° T

Answer 11

These describe the bearing and distance method

Question 12

Describe the Grid System method of expressing position.

Answer 12

Consists of a network of line overprinted on a map

Squares are numbered or lettered to indicated which square a sport is in

Question 13

Describe the GEOREF method

Answer 13

A type of grid system
288 section, consisting of 15° longitude by 15° latitude quadrangles
Each quadrangle further divided into 15 equal parts 1° by 1°

EX. EKMH2935

EK= 15° quadrangle
MH = 1° quadrangle
29 = lat
35 = long

Question 14

Describe the Lat and Long method

Answer 14

A well established, world-wide recognized system
World is divided up using parallels (latitude) and meridians (longitude)
Numbering system is recognized around the world

Question 15

Lat & Long Review

Parallels and Meridians are assigned to which one?

Answer 15

Lat = Parallel

Long = Meridian

Question 16

Review Question

What methods of expressing position were covered?

Answer 16

Place names, Bearing and distance, Grid systems: GEOREF & Lat and Long