Environmental Studies · Computer Knowledge

Geospatial and Monitoring Technology

1,527 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

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.
Multiple choice social studies tertiary and quaternary economic activities famous space scientists and astronauts space exploration discovery of universe

Gathering information from a distance without coming into direct contact with the object is

  1. GPS

  2. GIS

  3. Remote sensing

  4. Satellite observation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with it, typically using satellite or airborne sensor imagery. GPS provides geolocation coordinates, and GIS handles spatial data analysis, making remote sensing the exact match for data collection from a distance.

Multiple choice social studies tertiary and quaternary economic activities famous space scientists and astronauts space exploration discovery of universe

The system used for collecting, processing and analyzing the various data about the earth through computer is

  1. GPS

  2. E-mail

  3. Internet

  4. GIS
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A Geographic Information System (GIS) is specifically designed to capture, store, manipulate, analyze, manage, and present all types of geographical data using computer hardware and software. GPS is for positioning, whereas GIS is for processing and analyzing spatial data sets.

Multiple choice physics acoustics reverberation applications of reflection of sound multiple reflection of sound and reverberation

RADAR is used for

  1. locating submerged submarines

  2. receiving a signals in a radio receiver

  3. locating geostationary satellites

  4. detecting and locating the position of objects such as aeroplanes
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Radar is an acronym fro RAdio Detection And Ranging

$\rightarrow$ It is basically a detection system that uses radio waves to determine the range, angle or velocity of objects.
$\rightarrow$ More over; used for distance measurement
$\rightarrow$ Hence; can be used for detecting and locating the position of objects like aero planes

Multiple choice geography international development international development and world population and its impact on resources population growth and impact on resources reproductive health in humans

Which satellites help in finding and managing resources?

  1. Navigation satellites

  2. Communication satellites

  3. Remote sensing satellites

  4. Research satellites
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Remote sensing is the science of obtaining information about objects or areas from a distance, typically from aircraft or satellites. Remote sensing has a wide range of applications in many different fields i.e it helps in finding and managing various resources. For eg: Natural resource management: Remote sensing satellites helps to monitor land use, map wetlands, and chart wildlife habitats. Data collected can be used to minimize the damage that urban growth has on the environment and help to decide how to best protect natural resources.