In above Figure, what is the approximate difference in elevation between point E and point D?
In above Figure, what is the approximate difference in elevation between point E and point D?
The correct option is B 750 feet
The difference in elevation between point E and D is 750 feet
This is calculated as follows.
First we have to calculate contour interval
Point D is marked at 10,000 elevation and the next label is marked as
10,500 elevation.
10,500-1000=500 feet
Between these two contour lines if we count, there are 10 counter lines.
500/10=50
That means each counter line has 50 feet difference
Point E is between 10,500 and 11,000 and is exactly half between these
two points.
Point E is 5 contour lines away from 10,500 labelled point and each contour
line is equal to 50 feet
5*50=250 feet
Point E is therefore 250 feet higher from 10,500 labelled point
(HIGHER BECAUSE THE VALUE OF HEIGHT IS INCREASING TOWARDS LEFT)
Height of E is finally found to be 10,500+250= 10,750
Point D is marked at 10,000 elevation and Point E is marked at 10,750
elevation
10,750-10,000=750 feet.
Elevation between point E and D is 750 feet
The difference in elevation between point E and D is 750 feet
This is calculated as follows.
First we have to calculate contour interval
Point D is marked at 10,000 elevation and the next label is marked as 10,500 elevation.
10,500-1000=500 feet
Between these two contour lines if we count, there are 10 counter lines.
500/10=50
That means each counter line has 50 feet difference
Point E is between 10,500 and 11,000 and is exactly half between these two points.
Point E is 5 contour lines away from 10,500 labelled point and each contour line is equal to 50 feet
5*50=250 feet
Point E is therefore 250 feet higher from 10,500 labelled point
(HIGHER BECAUSE THE VALUE OF HEIGHT IS INCREASING TOWARDS LEFT)
Height of E is finally found to be 10,500+250= 10,750
Point D is marked at 10,000 elevation and Point E is marked at 10,750 elevation
10,750-10,000=750 feet.
Elevation between point E and D is 750 feet
