Mapping skills

Question 1

Slope is concave when

Answer 1

Spacing between contour lines increases

Question 2

Slope is convex when

Answer 2

When spacing between contour lines from high to low decreases

Question 3

How many cm in 1 km

Answer 3

100 000

Question 4

How many metres in 1km?

Answer 4

1000

Question 5

How many cm in 1 metre?

Answer 5

100

Question 6

When calculating the area of a feature on a topographic map, how do you count the squares?

Answer 6

DO count number of squares more than half covered by feature, ignore those less than half covered. Count all fully covered.

Question 7

What unit do you use for writing the area of a feature on a topo map?

Answer 7

Square kilometres

Question 8

Calculate distance?

Answer 8

Speed x time

Question 9

Convert hours to minutes?

Answer 9

Multiply by 60

Question 10

Convert minutes to hours?

Answer 10

Divide by 60

Question 11

Convert minutes to seconds?

Answer 11

Multiply by 60

Question 12

What is density?

Answer 12

The number of people/objects per unit of area (usually kilometres squared)

Question 13

How to express answer for density in the correct units?

Answer 13

Number of features per square kilometre
e.g. 7/km2
Make sure topo grid squares are 1cm2 using scale.

Question 14

Local relief?

Answer 14

Difference between HIGHEST and LOWEST point in a line between A and B (not always the start and finishing points)

Question 15

Aspect?

Answer 15

The direction in which a slope faces.

Question 16

How to determine aspect?

Answer 16

Draw lines perpendicular to 2 parallel contour lines, then figure out which is lower (downhill).

Question 17

How to calculate bearings?

Answer 17

Angle measured clockwise that a line makes with a fixed zero line which is always north (unless stated otherwise). e.g. bearing of A from B is 200 degrees.

Question 18

How to calculate sight line?

Answer 18

Draw line between 2 points, see if higher point between them.

Question 19

Define gradient

Answer 19

Steepness of a slope expressed as a ratio

Question 20

How to calculate gradient?

Answer 20

Rise (vertical height) : run (horizontal distance).
Need to get rise to 1 (divide by itself)

Question 21

What is 1km squared in hectares?

Answer 21

100ha

Question 22

How many metres in 1 hectare?

Answer 22

10 000 m squared

Question 23

Latitude of North/South Pole?

Answer 23

90 degrees north/south

Question 24

Latitude of Tropic of Cancer?

Answer 24

23.5 degrees N

Question 25

Latitude of Tropic of Capricorn?

Answer 25

23.5 degrees S

Question 26

Latitude Arctic Circle?

Answer 26

66.5 degrees N

Question 27

Latitude of Antarctic Circle

Answer 27

66.5 S

Question 28

Most important line of longitude?

Answer 28

Prime Meridian

Question 29

How many minutes in 1 degree?

Answer 29

60

Question 30

What is vertical exaggeration?

Answer 30

how much a cross-section has been stretched (exaggerated) by the vertical scale

Question 31

How to calculate vertical exaggeration?

Answer 31

Horizontal scale divided by vertical scale (same units)

Question 32

How to write answer for vertical exaggeration?

Answer 32

NO units- just '10 times'

Question 33

If the horizontal scale is 1000m and the vertical is 10m, what is the vertical exaggeration?

Answer 33

100 times

Question 34

How do you calculate the length of the horizontal axis for cross sections?

Answer 34

Same measurement as the distance between the 2 points on the map

Question 35

Define transect

Answer 35

A series of symbols used to show relationships between different features between two points on topographic map. Use same scale as the map.