Environmental Studies · Computer Knowledge

Geospatial and Monitoring Technology

1,579 Questions

Geospatial technology involves tools and methods used to map, monitor, and analyze the Earth. This section covers remote sensing, geographic information systems, and environmental monitoring networks. These topics are crucial for civil services and state level examinations.

Remote sensing techniquesGIS applicationsEnvironmental monitoringDigital elevation modelsSatellite communication

Geospatial and Monitoring Technology Questions

Multiple choice

Satellites which are used in remote sensing are

  1. sun-synchronous

  2. star-synchronous

  3. geosynchronous

  4. planet-synchronous

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sun-synchronous satellites are used in remote sensing because they pass over any given point on the Earth's surface at the same local solar time, ensuring consistent lighting conditions.

Multiple choice

Consider the following statements about the QuickBird satellite :

  1. It operates at an altitude of 950 km.
  2. Its sensors collect both multispectral and panchromatic images concurrently. Which of the statements given above is/are correct?

  1. 1 only

  2. 2 only

  3. Both 1 and 2

  4. Neither 1 nor 2

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

QuickBird is a high-resolution commercial satellite that orbits at an altitude of approximately 450 km, not 950 km. It does collect both multispectral and panchromatic data.

Multiple choice evs - i communication and mass media understanding communication and impact of mass media satellites in communication importance of transport system artificial satellite

Which is an application of satellite system?

  1. Whether forecasting

  2. Terrestrial communication

  3. Point to point communication

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Terrestrial communication has two stations with repeaters to strengthen the signal.

Point to point communication means the connection between two end points. e.g. telephone call
Satellites are used for whether forecasting.

Multiple choice physics search of life outside earth space research and satellites artificial satellites space missions and artificial satellites

______________________is a CMOS camera, performed mineralogical mapping in the 400900 nm band with a spectral resolution of 15 nm and a spatial resolution of 80 m.

  1. HEX

  2. Hyper Spectral Imager

  3. Moon Impact Probe

  4. none of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The scientific payload in Chandrayaan contained 5 Indian Instruments and 6 instruments from other countries.

Hyper Spectral Imager (HY SI), one of the Indian instruments, is a CMOS camera that performed mineralogical mapping in the 400-900 nm band with a spectral resolution of 15 nm and a spatial resolution of 80 m.

Multiple choice basics of management of water environmental science conservation of resources food production: soil and water management biology

Infrared and visible satellite images might provide:

  1. A way of determining cloud thickness and altitude.

  2. A way of distinguishing between wet and dry clouds.

  3. A way of identifying clouds suitable for cloud seeding.

  4. A way of distinguishing between "new" and "old" clouds.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Satellite imagery uses visible light to see cloud structure and infrared to determine cloud top temperature, which correlates with altitude and thickness.

Multiple choice here we go again second world war and world history

What is the term used for attacking targets on the ground from low-flying aircraft?

  1. Reconnaissance

  2. Scoring

  3. Strafing

  4. Surveying
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • During the World War 2, aircraft became increasingly important. Methods like reconnaissance and strafing were adopted.
  • Strafing means to attack targets on the ground from low-flying aircraft.