GST 101 - Module 6 Self-assessment Quiz

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1. Photointerpretation is the process of converting images to information.

Explanation

Photointerpretation can produce very useful products, like land use/land cover data sets.

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Remote Sensing Quizzes & Trivia

Self-assessment quiz for GST 101 - Module 6 - Understanding Remote Sensing and Aerial Photography

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2. Satellite images typically cover a larger area than aerial images.

Explanation

Because satellites are further away from Earth, their images typically cover a larger area than aerial images.

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3. RADAR is a well-known active remote sensing system.

Explanation

Active remote sensing systems, such as RADAR, emit and record energy they produce.

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4. The infrared wavelength is very useful for mapping vegetation.

Explanation

The infrared wavelength can tell us plant health among other useful observations.

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5. Image scale is the relative distance on images to distance on the ground.

Explanation

Knowing the image scale allows for accurate measurements.

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6. Scale is always constant on an aerial photograph.

Explanation

Due to the many types of distortion possible when taking an aerial photograph, scale is variable across an aerial photograph.

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7. Objects appear as the color they most absorb. 

Explanation

Objects appear as the color they most reflect.

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8. The full range of wavelengths is called the magnetic spectrum.

Explanation

The full range of wavelengths is called the electromagnetic spectrum.

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9. A stereo model is composed of a single photograph, but taken at an extremely high altitude.

Explanation

A stereo model requires at least two photographs taken at two slightly different perspectives of the same location.

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10. For any project size, aerial imagery is always cheaper to obtain than satellite imagery.

Explanation

For projects that cover a very large area of Earth, satellite imagery may be cheaper to obtain as satellites can cover larger portions of the Earth much quicker than aircraft.

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Photointerpretation is the process of converting images to...
Satellite images typically cover a larger area than aerial images.
RADAR is a well-known active remote sensing system.
The infrared wavelength is very useful for mapping vegetation.
Image scale is the relative distance on images to distance on the...
Scale is always constant on an aerial photograph.
Objects appear as the color they most absorb. 
The full range of wavelengths is called the magnetic spectrum.
A stereo model is composed of a single photograph, but taken at an...
For any project size, aerial imagery is always cheaper to obtain...
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