Remote Sensing Quiz

What is the primary advantage of remote sensing?

• It is the most expensive way to view the Earth.

• It is the cheapest way to repeatedly view the entire Earth.

• It provides historical data from the 1800s.

• It requires physical contact with the target.

What is the first requirement for remote sensing?

• A sensor to record energy.

• A satellite in orbit.

• An energy source or illumination.

• A processing station.

Which type of orbit allows a satellite to appear stationary relative to the Earth's surface?

• Inclined Orbit

• Elliptical Orbit

• Geostationary Orbit

• Polar Orbit

What is the main limitation of optical/passive remote sensing?

• High initial cost.

• Cloud cover.

• Low resolution.

• Limited data availability.

What type of sensor emits its own energy for illumination?

• Thermal sensor

• Optical sensor

• Active sensor

• Passive sensor

What does spatial resolution refer to in remote sensing?

• The time needed to revisit a location.

• The number of spectral bands.

• The ability to detect changes over time.

• The size of the smallest detectable feature.

Which of the following is NOT a type of sensor platform?

• Submarine

• Spaceborne

• Airborne

• Terrestrial

What is the purpose of image classification in remote sensing?

• To enhance image quality.

• To reduce the size of data files.

• To turn data into meaningful categories.

• To increase the resolution of images.

What does NDVI stand for?

• New Digital Visual Interpretation

• Normalized Data Value Indicator

• Normalized Difference Vegetation Index

• National Data Visualization Index

Which satellite has a resolution of 30 meters?

• Sentinel

• Landsat

• QuickBird

• Worldview-2