The Remote Sensing Quiz! Trivia Questions
(85).jpg "The Remote Sensing Quiz! Trivia Questions - Quiz")
How much knowledge do you have about the remote sensing technology? Remote sensing is the act of observing the radiation or a given area at a distance using unique cameras or satellite cameras that receive images and data in intervals or in real-time. Do you know the journey that this technology had taken over time since the creation of cameras? Well, take the quiz and see for yourself.
- 1.
What is remote sensing?
- A.
Ability to gather information about a distant or unseen target using paranormal means or extra-sensory perception
- B.
Small or large-scale acquisition of information of an object or phenomenon not in physical or intimate contact
- C.
Electrical impedance measuring technique that uses separate pairs of current-carrying and voltage-sensing electrodes to make more accurate measurements
- D.
Allowing graphical applications to be run remotely on a server, while being displayed locally
- E.
Any system that captures, stores, analyzes, manages, and presents data that are linked to location.
Correct Answer
B. Small or large-scale acquisition of information of an object or phenomenon not in physical or intimate contactExplanation
Remote sensing refers to the process of gathering information about an object or phenomenon without being in physical or intimate contact with it. This can be done on a small or large scale and involves using various technologies such as satellites, aircraft, or drones to capture data from a distance. It allows for the collection of data about the Earth's surface, atmosphere, and oceans, which can be used for various purposes such as mapping, monitoring, and resource management.Rate this question:
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- 2.
What is photogrammetry?
- A.
Determining the geometric properties of objects from photographic images
- B.
Estimating the three-dimensional coordinates of points on an object
- C.
Acquisition of objects without contact of large complex scenes in 3D
- D.
Analysing a real-world object or environment to collect data on its shape and possibly its appearance
- E.
Optical illusion of depth created from flat, two-dimensional image or images
Correct Answer
A. Determining the geometric properties of objects from photographic imagesExplanation
Photogrammetry is the process of determining the geometric properties of objects from photographic images. It involves analyzing the images to estimate the three-dimensional coordinates of points on the object. This technique allows for the acquisition of objects without direct contact and can be used to analyze real-world objects or environments to collect data on their shape and appearance. It is not related to the optical illusion of depth created from flat, two-dimensional images.Rate this question:
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- 3.
During the middle of the 14th century, who came up with the idea of Camera Obscura in their notebook?
- A.
Galileo Galilei
- B.
Thomas Alva Edison
- C.
Leonardo Da Vinci
- D.
Isaac Newton
- E.
Rene Descartes
Correct Answer
C. Leonardo Da VinciExplanation
Leonardo Da Vinci came up with the idea of Camera Obscura in his notebook during the middle of the 14th century.Rate this question:
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- 4.
Which famous French photographer first practiced aerial photography and made photographs of Paris from his balloon in the mid 18th century?
- A.
Charles Nègre
- B.
Jean-Marie Périer
- C.
André Giroux
- D.
François-Simon-Alphonse Giroux
- E.
Félix Nadar
Correct Answer
E. Félix NadarExplanation
Félix Nadar is the correct answer because he was a famous French photographer who first practiced aerial photography and took photographs of Paris from his balloon in the mid-18th century. He was known for his innovative techniques and contributions to the field of photography, including his pioneering work in aerial photography.Rate this question:
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- 5.
At the start of the 19th century, how were pigeons used in the early form of remote sensing?
- A.
They carried pictures from the battlefield to remote sensing stations
- B.
They conveyed messages from remote sensing stations to another
- C.
They were used to test tracking equipment
- D.
They carried cameras which automatically took pictures
- E.
They were never used
Correct Answer
D. They carried cameras which automatically took picturesExplanation
In the early form of remote sensing at the start of the 19th century, pigeons were used to carry cameras that could automatically take pictures. This allowed for capturing images from a distance without the need for human intervention. The pigeons would be equipped with the cameras and sent to specific locations to capture images, which could then be retrieved and analyzed at remote sensing stations. This method provided a way to gather visual information from remote areas without the need for physical presence.Rate this question:
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- 6.
Electromagnetic waves are defined to behave in the same way of which of the following waves?
- A.
Longitudinal waves
- B.
Transverse waves
- C.
Compressional waves
- D.
Mechanical wave
- E.
Sound waves
Correct Answer
B. Transverse wavesExplanation
Electromagnetic waves are defined to behave in the same way as transverse waves. Transverse waves are characterized by the oscillation of particles perpendicular to the direction of wave propagation. This is also true for electromagnetic waves, where the electric and magnetic fields oscillate perpendicular to the direction of wave travel. Unlike longitudinal waves, which have particles oscillating parallel to the direction of wave propagation, electromagnetic waves exhibit transverse behavior. Therefore, the correct answer is transverse waves.Rate this question:
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- 7.
Which of the types of waves below has the longest wavelength?
- A.
X-Rays
- B.
Gamma Rays
- C.
Hertzian Waves
- D.
Radio Waves
- E.
Near Infrared Waves
Correct Answer
D. Radio WavesExplanation
Radio waves have the longest wavelength among the given options. Radio waves have wavelengths ranging from about one millimeter to hundreds of kilometers. They are used for various purposes such as communication, broadcasting, and radar systems. X-Rays, Gamma Rays, Hertzian Waves, and Near Infrared Waves all have shorter wavelengths compared to radio waves.Rate this question:
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- 8.
Which of the following remote sensing technologies use sound?
- A.
RADAR
- B.
Colour Infrared
- C.
SONAR
- D.
LORAN
- E.
LIDAR
Correct Answer
C. SONARExplanation
SONAR is the correct answer because it is a remote sensing technology that uses sound. SONAR stands for Sound Navigation and Ranging, and it works by emitting sound waves into the water and measuring the time it takes for the sound waves to bounce back after hitting an object. This technology is commonly used in underwater mapping, navigation, and detecting objects underwater, such as submarines or fish.Rate this question:
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- 9.
What color does living vegetation appear as on false-colour IR images?
- A.
Green
- B.
Red
- C.
Black
- D.
Blue
- E.
Yellow
Correct Answer
B. RedExplanation
Living vegetation appears as red on false-color infrared (IR) images because these images are created by assigning different colors to different wavelengths of infrared light. In false-color IR images, vegetation reflects more near-infrared light, which is represented as red color. This allows for better differentiation and analysis of vegetation health and density.Rate this question:
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- 10.
What range of colors are used is for the sensing, representation, and display of images in modern electronic systems and photography.
- A.
Cyan, Magenta, Yellow
- B.
Red, Green, Blue
- C.
Cyan, Green, Yellow
- D.
Cyan, Magneta, Yellow, Black
- E.
Red, Green, Yellow
Correct Answer
B. Red, Green, BlueExplanation
Red, Green, and Blue (RGB) are the primary colors used in modern electronic systems and photography for sensing, representation, and display of images. These colors are combined in different intensities to create a wide range of colors. RGB is an additive color model, where the combination of these three colors in varying proportions can produce millions of different shades and hues. This color system is widely used in devices such as televisions, computer monitors, and digital cameras to accurately capture, display, and reproduce colors.Rate this question:
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Current Version
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Mar 22, 2023Quiz Edited by
ProProfs Editorial Team -
Apr 12, 2010Quiz Created by
Limpz
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