Contour Lines and Relief Representation

Match each contour line pattern on a topographical map with the corresponding relief feature it represents.

On a topographical map with a scale of $1:50,000$, Point X is situated on a contour line marked $350\text{ m}$ and Point Y is situated on a contour line marked $500\text{ m}$. If the measured distance between Point X and Point Y on the map is $6\text{ cm}$, what is the gradient of the slope between Point X and Point Y?

On a topographical map, a series of V-shaped contour lines have their apexes (pointed ends) pointing towards higher elevation. Which of the following relief features is represented by this contour pattern?

On a topographical map drawn to a scale of $1:100,000$, a hill summit is marked with a spot height of $520\text{ m}$. The terrain features uniform contour intervals of $20\text{ m}$. Point $X$ is located on the fifth contour line directly below the summit. Point $Y$ is situated at a lower elevation such that the vertical difference in height between Point $X$ and Point $Y$ is $240\text{ m}$. If the straight-line distance measured between Point $X$ and Point $Y$ on the map is $6\text{ cm}$, calculate the average gradient between Point $X$ and Point $Y$ expressed in the ratio $1 : n$. What is the value of $n$?

On a topographical map drawn to a scale of $1:25,000$, a road ascends continuously from Point P at a contour elevation of $180\text{ m}$ to Point Q at a contour elevation of $430\text{ m}$. If the average gradient along this section of the road is $1\text{ in } 20$, what is the distance between Point P and Point Q on the map in centimeters?

Match each topographical contour line pattern with the correct relief feature or slope characteristic it depicts on a map.

On a topographical map drawn to a scale of $1:20,000$, a foot trail ascends continuously from Point A at a contour elevation of $150\text{ m}$ to Point B at a contour elevation of $300\text{ m}$. If the straight-line map distance between Point A and Point B measures $15.0\text{ cm}$, what is the average gradient of the slope from Point A to Point B?

On a topographical map drawn to a scale of $1:50,000$, a road ascends continuously from a contour elevation of $200\text{ m}$ to $450\text{ m}$. If the distance along the road measured on the map is $5.0\text{ cm}$, what is the average gradient of the road?

On a topographical survey map drawn to a scale of $1:40,000$, Point X lies at an elevation of $250\text{ m}$ on a hillside, and Point Y lies further uphill along a straight spur at an elevation of $650\text{ m}$. If the distance between Point X and Point Y measured on the map is $5\text{ cm}$, the gradient of the slope between the two points can be expressed in the ratio form $1 : x$. What is the numerical value of $x$?

On a topographical map, a series of V-shaped contour lines point towards lower elevation values as they extend across the landscape. Which of the following relief features is represented by this contour pattern?

On a topographical map, a hillside shows contour lines that are densely packed near the hilltop at higher elevations and gradually become widely spaced towards the foot of the hill at lower elevations. Which type of relief slope does this contour pattern represent?

Match each relief feature or slope type with the contour line pattern that uniquely describes its representation on a topographical map.

On a topographic map drawn to a scale of $1 : 50,000$, a road ascends continuously from Point A at a contour elevation of $160\text{ m}$ to Point B at a contour elevation of $360\text{ m}$. If the straight-line distance between Point A and Point B measured on the map is $10\text{ cm}$, calculate the gradient of the road between these two points. Express your answer as the value of $N$ in the ratio $1 : N$.

Match each contour line pattern listed on the left with the corresponding relief landform it represents on the right.

On a topographic map, index contours are drawn at elevations of $400\text{ m}$ and $700\text{ m}$. There are $5$ equal contour intervals (spaces) between these two index contours. A radio transmission mast is located on a contour line situated $3$ contour intervals higher than the $700\text{ m}$ index contour. What is the elevation, in meters, of the contour line where the radio mast is located?

On a topographical map, a surveyor assesses two observation posts: Post X at an elevation of $750\text{ m}$ and Post Y at an elevation of $900\text{ m}$, separated by a straight-line distance of $4.0\text{ km}$. An intervening ridge crest with a summit elevation of $820\text{ m}$ is located exactly $1.5\text{ km}$ along the line of sight from Post X. Assuming a direct line of sight between the two posts, which of the following statements correctly evaluates their intervisibility?

In topographical map interpretation, distinct contour patterns uniquely represent specific physical landforms and slope profiles. Match each contour line configuration on the left with the corresponding relief feature it describes on the right.

On a topographical map with a constant contour interval of $20\text{ m}$, Point X is located on the contour line labeled $240\text{ m}$. Point Y is located higher up the same hill, exactly three contour intervals above Point X. What is the elevation of Point Y in meters?

On a topographical map drawn to a scale of $1 : 25,000$, a road ascends continuously from Point X at an elevation of $120\text{ m}$ to Point Y at an elevation of $370\text{ m}$. If the average gradient of the slope along this road is $1 \text{ in } 20$, what is the distance between Point X and Point Y on the map?

On a topographical map with a scale of $1 : 25,000$ and a contour interval of $20\text{ m}$, a river flows down a valley. Contour line $V_1$, whose V-shape apex points upstream toward higher elevation, crosses the river channel at an elevation of $360\text{ m}$. Further downstream, the river crosses contour line $V_2$, which is separated from $V_1$ by $4$ contour intervals. If the measured map distance along the stream between these two crossing points is $8\text{ cm}$, what is the average gradient of the river channel between $V_1$ and $V_2$?