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Rule 1 – every point of a contour line has the same elevation. Rule 2 – contour lines separate uphill from downhill. Rule 3 – contour lines do not touch or cross each other except at a cliff.Contour lines generally do not meet or intersect each other. If contour lines are meeting in some portion, it shows the existence of a vertical cliff. 2. Contours of different elevations cannot cross each other.Answer and Explanation: Contour lines never cross on a topographic map because each line represents the same elevation level of the land.
Can two contour lines intersect each other?
Contour lines generally do not meet or intersect each other. If contour lines are meeting in some portion, it shows the existence of a vertical cliff. 2. Contours of different elevations cannot cross each other.
Why do contours not intersect each other?
Answer and Explanation: Contour lines never cross on a topographic map because each line represents the same elevation level of the land.
Cross Contours
Images related to the topicCross Contours
What does it mean when contour lines cross?
2. Closely spaced contour lines represent steep slopes, conversely, contour lines that are spaced far apart represent gentle slopes. 3. Contour lines trend up valleys and form a “V” or a “U” where they cross a stream.
Can contours cut each other at any point?
A contour is an imaginary line on the ground joining the points of equal elevation. It is a line in which the surface of ground is intersected by a level surface. 1. Two contour lines of different elevations cannot cross each other.
When contour lines touch one another at a particular zone?
Explanation: Two contour lines of different elevations cannot cross each other. However, contour lines of different elevations can intersect only in case of an overhanging Cliff and a cave.
What does it mean when two contour lines are very close together?
Contour lines that are relatively close together indicate a slope that is fairly steep. Contour lines that are further apart indicates a slope that is relatively flat.
Why do contour lines never cross Brainly?
Answer: Contour lines do not cross each other because of the variance in elevation between the lines.
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Contour Lines – Physical Geology Laboratory – VIVA Open …
Contour lines never cross. They may come very close to each other (e.g. along a cliff), but by definition they may never cross each other.
Does a contour line intersect each other in geological maps?
A contour line is a line joining all points of equal height or elevation on a map. Therefore, in one particular section of a map, there cannot be more than …
Why two contours never intersect each other? | KnowledgeBoat
Two contours never intersect each other because each line represents a separate elevation, and we can’t have two different elevations at the same point.
Civil Engineering :: Surveying – Discussion – IndiaBIX
Two contours of different elevations do not unite together except in the case of the vertical cliff but if there is the same height two contours can unite …
Can contour lines split?
Contour lines never split or branch.
Do contour lines show elevation above sea level?
Contour lines connect a series of points of equal elevation and are used to illustrate relief on a map. They show the height of ground above mean sea level (MSL) either in metres or feet, and can be drawn at any desired interval.
How do contour lines work?
Put simply, contour lines mark points of equal elevation on a map. If you trace the length of a line with your finger, each point you touch is the same height above sea level. If you were to walk the path of a contour line in real life, you would remain at the same elevation the whole hike, never traveling up or down.
How do you join contour lines?
Starting at the highest elevation, draw straight lines to the nearest neighboring spot elevations. Once you have connected to all of the points that neighbor the highest point, begin again at the second highest elevation.
Two long, straight wires cross each other at right angles, as shown in the figure below
Images related to the topicTwo long, straight wires cross each other at right angles, as shown in the figure below
What are the characteristics of a contour line?
The contours have following characteristics –
All the points on a contour line have same elevation or same reduced level. Flat surface is represented by widely spaced contours. Steep ground is represented by closely spaced contours. Plane surface is represented by straight, parallel and equally spaced contours.
At what angle does a ridge line intersect contours?
Question: The angle of intersection of a contour and a ridge line, is. 4 90°.
When crossing a ridge a contour line makes a?
Contours cannot branch or wye into two contours of the same elevation. Controlling features in locating contours are usually drainage lines. Contour lines crossing a stream point upstream and form form V’s. Contour lines crossing a ridge crest point down the ridge and form U’s.
Which of the following is not true about contour lines?
Answer: C – The statement “Contour lines are parallel to the direction of maximum slope” is NOT true. Contour lines are perpendicular to the direction of maximum slope. The contour interval for contour lines is the constant vertical distance between adjacent contour lines.
What is contour interval of the map?
A contour interval in surveying is the vertical distance or the difference in the elevation between the two contour lines in a topographical map. Usually there are different contour intervals for the different maps. Considering the size of the area to be mapped, contour intervals are assumed.
What is the process of spacing the contour proportional between?
Explanation: Interpolation of the contours is the process of spacing the contours proportionately between the plotted ground points established by indirect methods. The methods of interpolation are based on the assumption that the slope of ground between the two points is uniform.
When contours are close to each other the land is?
Spacing of contours: close contours indicate a steep slope; distant contours a shallow slope. Two or more contour lines merging indicates a cliff.
When contour lines are or get very close together on a topographic map what is happening to the land or slope of the land?
If contour lines are close together, it is a very steep slope; if they are far apart, it is a gradual slope.
What are the 3 factors that should be considered upon planning and designing of a contour interval to be used for a topographic map?
- The Scale of The Map. The contour interval is inversely proportional to the scale of the map. …
- Nature of The Ground. …
- Purpose and Expansion of the survey work. …
- Time available and Eligible Expenses for field and office work.
PRACTICE DRAWING FROM IMAGINATION: Make your drawings look round with cross contours + plane changes
Images related to the topicPRACTICE DRAWING FROM IMAGINATION: Make your drawings look round with cross contours + plane changes
Why do the lines on a topographic map never cross How do the lines indicate which side of the mountain is the steepest?
1 Answer. Contour lines are used to represent elevation on a contour map. Each contour line represents a different elevation, and you can’t have two different elevations at the same point. An example would be how 500 meters above sea level will never be equivalent to 1000 meters above sea level.
Why are contour lines useful?
These contour lines are an important way of showing the rise and fall of the land on a map. Contour lines show all the places that are the same height above sea level. They also tell us about the slope of the land. On a steep slope, the lines are close together.
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