Free Remote Sensing & Image Interpretation Questions and Answers

Question 1

What is remote sensing primarily used for in photogrammetry?

Accepted Answer

Capturing spatial information from a distance

Answer

Collecting soil samples

Answer

Installing weather equipment

Answer

Measuring tree height manually

Question 2

Which type of satellite sensor detects reflected sunlight?

Accepted Answer

Passive sensor

Answer

Active radar sensor

Answer

Ground-penetrating sonar

Answer

Magnetic resonance scanner

Question 3

What is the term for the smallest object that can be detected by a sensor?

Accepted Answer

Spatial resolution

Answer

Radiometric resolution

Answer

Spectral resolution

Answer

Temporal resolution

Question 4

Which color band is most effective for detecting healthy vegetation?

Accepted Answer

Near-infrared band

Answer

Blue band

Answer

Red band

Answer

Thermal band

Question 5

Which type of remote sensing uses emitted microwave energy to collect data?

Accepted Answer

Active radar sensors

Answer

Thermal sensors

Answer

Photographic cameras

Answer

Magnetometers

Question 6

What is a key advantage of active remote sensing systems like LiDAR?

Accepted Answer

They function in any lighting conditions

Answer

They require daylight to operate

Answer

They only measure air temperature

Answer

They depend on visible light reflection

Question 7

Which factor determines how frequently a satellite can revisit the same location?

Accepted Answer

Temporal resolution

Answer

Spectral resolution

Answer

Radiometric resolution

Answer

Cloud cover density

Question 8

Which term describes the interpretation of remotely sensed images to classify land cover?

Accepted Answer

Image classification

Answer

Raster compositing

Answer

Histogram equalization

Answer

Pixel smoothing

Question 9

Why is multi-spectral imaging valuable in remote sensing?

Accepted Answer

It captures images in multiple wavelength bands

Answer

It limits image resolution

Answer

It uses only infrared light

Answer

It only detects atmospheric gases