Practice test

Remote sensing and gis - Test Set 2

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    The point just vertically below the observer’s position, in celestial sphere is called______.
    1. Celestial point
    2. Zenith
    3. Nadir
    4. Pole
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  2. Question 2

    The interaction of the electromagnetic radiation produced with a specific wave length to illuminate a target on the terrain for studying its scattered radiance, is called:
    1. Remote sensing
    2. Neutral remote sensing
    3. Passive remote sensing
    4. Active remote sensing
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  3. Question 3

    A vertical circle that is at the right angles to the meridian and that therefore passes through the east and west points of the horizon is called:
    1. The visible horizon
    2. prime vertical
    3. co-latitude
    4. Right ascension
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  4. Question 4

    What is remote sensing?
    1. The acquisition of information about an object or phenomenon without making physical contact
    2. The measurement of soil moisture directly
    3. The observation of celestial bodies
    4. The study of atmospheric pressure
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  5. Question 5

    Which of the following is a common remote sensing platform?
    1. Satellites
    2. Handheld cameras
    3. Surveying rods
    4. Ground-based sensors
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  6. Question 6

    Which remote sensing technique is used to measure the height of objects on Earth’s surface?
    1. Spectroscopy
    2. Radar
    3. Hyperspectral imaging
    4. Lidar (Light Detection and Ranging)
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  7. Question 7

    What type of data is typically collected by remote sensing satellites?
    1. Atmospheric pressure
    2. Soil temperature
    3. Wind speed
    4. Electromagnetic radiation
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  8. Question 8

    What is the primary purpose of the Landsat satellite program?
    1. Weather forecasting
    2. Earth observation and land surface monitoring
    3. Space exploration
    4. Oceanographic studies
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  9. Question 9

    Which wavelength of electromagnetic radiation is used for vegetation monitoring in remote sensing?
    1. Radio waves
    2. Ultraviolet
    3. X-rays
    4. Near-infrared
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  10. Question 10

    Which of the following is a passive remote sensing technique?
    1. Radar
    2. Ultrasonics
    3. Lidar
    4. Photography
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  11. Question 11

    Which remote sensing application is commonly used for disaster monitoring?
    1. Flood mapping
    2. Urban planning
    3. Soil fertility analysis
    4. Agricultural yield prediction
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  12. Question 12

    Which band of the electromagnetic spectrum is commonly used for thermal remote sensing?
    1. X-ray
    2. Ultraviolet
    3. Thermal infrared
    4. Gamma rays
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  13. Question 13

    Which satellite is known for its hyperspectral imaging capabilities?
    1. Landsat 8
    2. MODIS (Moderate Resolution Imaging Spectroradiometer)
    3. EO-1 (Earth Observing-1)
    4. GOES (Geostationary Operational Environmental Satellites)
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  14. Question 14

    Which of the following is a common application of radar remote sensing?
    1. Water quality assessment
    2. Surface topography mapping
    3. Atmospheric temperature measurement
    4. Soil nutrient analysis
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  15. Question 15

    What is ‘georeferencing’ in remote sensing?
    1. The creation of detailed maps from remote sensing data
    2. The calibration of remote sensing instruments
    3. The process of aligning remote sensing data with geographic coordinates
    4. The analysis of spectral signatures
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  16. Question 16

    Which remote sensing technology is typically used for monitoring atmospheric gases?
    1. Radar
    2. Spectroscopy
    3. Lidar
    4. Thermal imaging
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  17. Question 17

    Which term refers to the ability of a sensor to detect and record different wavelengths of light?
    1. Spatial resolution
    2. Radiometric resolution
    3. Temporal resolution
    4. Spectral resolution
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  18. Question 18

    What is the primary use of MODIS (Moderate Resolution Imaging Spectroradiometer) data?
    1. High-resolution urban planning
    2. Detailed ground-level mapping
    3. Earth surface and atmospheric monitoring
    4. Space debris tracking
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  19. Question 19

    Which of the following is a limitation of passive remote sensing?
    1. It is less accurate than active remote sensing
    2. It has high operational costs
    3. It requires complex calibration Answer
    4. It cannot operate in the absence of sunlight
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  20. Question 20

    Which remote sensing technique is used to monitor coastal erosion?
    1. Aerial photography
    2. Thermal infrared sensing
    3. Lidar
    4. Soil sampling
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