Question 1 Local relief is the difference between the highest and lowest elevati

Question

Question 1

Local relief is the difference between the highest and lowest elevation in a particular area. What is the local relief for the map?

10,000'

0'

About 700'

About 100'

Question 2

If I was standing a "D" and you were at "F" we would have no issue seeing each other.

True

False

Question 3

What is the contour interval for the map?

20

30

40

50

Question 4

What is the approximate elevation of Point C?

500

625

575

1000

Question 5

Rush Creek flows from _______ to ________.

East to West

South to North

North to South

Uphill

Question 6

The peak of Rock Hill is approximately ________ feet higher than the peak of Pine Hill.

1000

500

350

It is actually a lower elevation.

10,000'

0'

About 700'

About 100'

The questions in this exercise are based on this contour line map with elevations shown in feet. North is to the top of the map. Streams are shown with dashed lines A graphic scale for measuring horizontal distances is shown below the map. Estimate elevations between contour lines to the nearest half-contour interval; assume that the top of a hill is one-half-contour interval higher than the highest contour line shown. 750 Pine Hi11 Rock Hi11 A. 1000 1000 2000 3000 Feet

Explanation / Answer

Question 1: About 700. Explanation: The elevations are found by interpolating the contour lines between the two marked contour lines in dark. For example, in the image given, in the pine hill area, 750 feet dark line is available and to the right 500 feet line is available. the lines between these two are noted and the number of spacings between these lines are calculated. now the total difference is 750-500 =250. and the number of spacings between these two is 5. Dividing the difference 250/5 = 50 feet is the contour interval. The highest elevation is 1100'. The highest available height is 1000 feet near to the rock hill and there are two more contours above it. Since the contour interval is 50, moving to the top of the hill by adding 50 two times to the 1000 feet gives 1100 feet. Since in the question it is assumed that the top of the hill is one half contour interval higher than the highest contour value shown, half contour interval is 50/2 = 25 and the highest contour line is 1100. Adding both, 1100 +25 = 1125 feet. and the lowest elevation is 450' because the lowest given contour value is 500 and there is a line to the left or right of the 500 contour lines which must be 50 feet less than it as the contour values falls from higher to lower from up to down side of the image. 1125-450 = 675' That is approximately 700 feet. Question 2: False. Explanation: The elevation of D is 650 feet and elevation of F is 675 feet. Between D and F, there is a hill of elevation more than 750 feet which hinders the view of you and me. If you are standing at D, assume maximum height of human is 6 feet, 650+6 = 656 feet. Whereas the height of the hill is more than 750 feet which will hinder the view where in F i am standing at 675 feet and adding my approximate height gives 675+6 = 681 feet which is not sufficient to see you. Question 3: 50 feet. Explanation: The contour interval is the difference in elevation between the contour lines. It is interpolated between any two contour lines given in the image and the interval is calculated. Question 4: 575 feet Explanation: Point C lies between the 600 and 550 feet lines. These values can be tracked down from the rock hill's 1000 feet value to the 500 feet contour value to the left.

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