Map Height Representation and Types

The video tutorial covers various types of heights depicted on topographical maps, including triangulated height, spot height, benchmark, and relative height. Each type is explained in terms of its representation, measurement, and significance. Triangulated height is marked with a triangle, spot height is above mean sea level, benchmarks are marked by surveyors, and relative height shows differences in elevation. The tutorial emphasizes understanding these concepts for accurate map reading.

What symbol is used to represent a triangulated height on a map?

• A square with a number

• A triangle with a number

• A star with a number

• A circle with a number

Which height is measured from the mean sea level?

• Relative height

• Benchmark height

• Spot height

• Triangulated height

How is a spot height represented on a map?

• A square with a number

• A dot followed by a number

• A line with a number

• A triangle with a number

What does the 'BM' symbol on a map indicate?

• Benchmark height

• Base map

• Building marker

• Boundary marker

Benchmark heights are determined by which group of professionals?

• Architects

• Surveyors

• Geologists

• Engineers

What does a relative height represent?

• The height above mean sea level

• The difference between maximum and minimum heights

• The height of a building

• The depth of a well

How is relative height indicated on a map?

• A triangle with a number

• A dot followed by a number

• A line with a number

• A small 'r' followed by a number

What does the symbol '3R' next to a hill on a map signify?

• The hill is 3 meters above sea level

• The hill is 3 meters above ground level

• The hill is 3 meters below sea level

• The hill is 3 meters below ground level

In the context of wells, what does a relative height of '10R' indicate?

• The well is 10 meters below sea level

• The well is 10 meters below ground level

• The well is 10 meters above sea level

• The well is 10 meters above ground level

Which type of height is not concerned with sea level?

• Triangulated height

• Relative height

• Benchmark height

• Spot height