In fact, sight, smell, and hearing all are the forms of remote sensing. Thus, a satellite image is composed different digital values or pixels. Elements of Remote Sensing. Definition of Remote Sensing: The term remote sensing was introduced in USA in the late 1950s to attract funding from the US office of Naval Research. Pick up the correct statement from the following: A. A. The emission is in the form of various electromagnetic waves. 6. 0. The reflectance varies according to the wave length. Fully solved Multiple choice … These seven elements comprise the remote sensing process from beginning to end. Elements of Remote Sensing - Section 1. B. Topological characteristics of an object are independent of scale measurement . Enjoy the journey! You have to select the right answer to the question. This interaction may take place a second time as the energy travels from the target to the sensor. The elements range from solar radiation to the application of imageries for public problems, through various stages. 8. 1. Thus, the spectral reflectances from the earth, in fact earth objects, are of many thousand types. 1. Elements of Remote Sensing MCQ with Answers - Set 05 MCQ Remote Sensing Edit Practice Test: Question Set - 05. Remote sensing is the acquisition of information about an object without coming in physical contact of that object. The cameras record the energy in films and the sensors convert the energy into electrical signals and send them to the earth's receiving stations. These systems consist of a number of elements. Advantages of Remote sensing. This is done by sensing and recording reflected or emitted energy and processing, analyzing, and applying that information.". Radar transmits a pulse and. 1. What is Remote SensingIt is a method of collecting information aboutan object without the instrument being used tocollect the data, coming in direct with the object.In other words it means, ‘measuring at a distance without physical contact’.Like, Eyesight is a form of remote sensing.When we take a photograph of an object, theEMR (Electromagnetic Radiations) is recorded on the film.A … General Utility 4. In much of remote sensing, the process involves an interaction betee n incident adiation and the targets of interest. Pick up the correct statement from the following? A number of bands can be identified based on the wave lengths. Sensors used 8. The ratio of the up flux and down flux just above the snow surface, is called albedo B. Spectral albedo of snow is calculated for the semi-infinite snow thickness C. Water equivalent height of snow is the height of water column obtained by melting snow D. All of these. 7. Sometimes the 'impression' that a buried artifact, such as an ancient fort foundation, leaves on the surface, can be detected and identified. Passive & Active Remote Sensing • The sun provides a very convenient source of energy for remote sensing. Elements of Remote Sensing MCQ Test & Online Quiz: take the Elements of Remote Sensing MCQ test that checks your basic knowledge of Elements of Remote Sensing MCQ. measures reflected echo (backscatter) Structure of the course: Passive remote sensing using scattering and extinction (Lectures 9-13) Passive remote sensing using emission (Lectures 14-19) Active remote sensing (Lectures 20-26) 2. It is is the study of an object from a distance to know about the chemical and physical characteristics of the object. This band of rays is called the 'electromagnetic radiation' (EMR). CNR MilanoNational Research Council of Italy, Institute for the Electromagnetic Sensing of the EnvironmentMilanoItaly. Remote sensing is the acquisition of data for determining information regarding objects located on the earths surface or in its atmosphere by using sensors in different spectral regions in inter-action between the targets and electromagnetic energy. Elements of Remote Sensing. In much of remote sensing, the process involves an interaction between incident radiation and the targets of interest. Radiation and the Atmosphere (B) - as the energy travels from its source to the target, it will come in contact with and interact with the atmosphere it passes through. Interaction of Solar Energy with Atmospheric Elements: When the solar energy passes through the atmosphere, many elements await to meet the energy. Definition of Remote Sensing 2. Remote sensing is the science of acquiring information about the Earth's surface without actually bein g in contact with it. Remotely Sensed Data Supply: Satellite images and the aerial photographs can be obtained from three organisations or places in India as indicated below: National Remote Sensing Agency, Hyderabad. Any object, with a temperature of about 0o K (273o C) will emit energy. Application (G) - the final element of the remote sensing process is achieved when we apply the information we have been able to extract from the imagery about the target in order to better understand it, reveal some new information, or assist in solving a particular problem. Process and Elements of Remote Sensing. Remote sensing is a way of collecting and analysing data to get information about an object without the instrument used to collect the data being in direct contact with the object. 5. While the term 'remote sensing' typically assumes the use of electromagnetic radiation, the more general definition of 'acquiring information at a distance', does not preclude other forms of energy. 4. Note, however that remote sensing also involves the sensing of emitted energy and the use of non-imaging sensors. Emission of Sun's Energy : Solar energy is emitted into the space. For enquiries, contact us. A Platform is defined as the carrier for remote sensing sensors. … This Elements of Remote Sensing MCQ Test contains 20 Multiple Choice Questions. These seven elements comprise the remote sensing process from beginning to end. These Multiple Choice Questions (MCQs) on Elements of Remote Sensing Mcqs will prepare you for technical round of job interview, written test and many certification exams. The sun's energy is either reflected, as it is for visible wavelengths, or absorbed and then re-emitted, as it is for thermal infrared wavelengths. Through such reflectance, various wave lengths help in remote sensing to identify various elements over the earth. Terrestrial Radiation of the Earth's Element: The solar energy, along with the energy already stored in the elements on the earth, are radiated back into the atmoshpere. This is a modern technology that started when the camera was invented for the first time. Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail. Sun as a Source of Energy: Sun is the prime source of energy to the world. The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called_____? Elements of Remote Sensing. Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object and thus is in contrast to on-site observation. Electromagnetic spectrum contains: (A) Gamma rays (wave length < 10-10 m) (B) Ultraviolet rays (wave length < 10-6 m) (C) Infrared rays (wave length < 10-4 m) (D) All of these . Data Acquisition by the Earth Station: The electrical pulses from the remote sensors are converted into 'digital' numbers. 5. This is exemplified by the use of imaging systems where the following seven elements are involved. Elements of Remote Sensing Civil Engineering Questions and Answers with explanation for placement, interview preparations, entrance test. Application (G) - the final element of the remote sensing process is achieved when we apply the information we have been able to extract from the imagery about the target in order to better understand it, reveal some new information, or assist in solving a particular problem. The purpose of this online test is to help you evaluate your Elements of Remote Sensing Mcqs knowledge yourself. Devices used for Remote Sensing 3. 7. Interpretation and Analysis (F) - the processed image is interpreted, visually and/or digitally or electronically, to extract information about the target which was illuminated. Pick up the correct statement from the following: A. Topology describes the geometric characteristic of objects which do not change under transformations and are independent of any coordinate system. Questions related to Element of Remote Sensing can be found here in this section and you will get all necessary MCQs of this field. Interaction of Solar Energy with Atmospheric Elements, Interaction of Sunlight with Terrestrial Features, Terrestrial Radiation of the Earth's Element, Ecosystems : Information and Communication Systems : Technological, Technical Development, Classification of Satellite Remote Sensing : Geo, Sun, Spy Satellites, Water Based, Related and Waterborne Diseases. These seven elements comprise the remote sensing process from beginning to end. Principle of Remote Sensing. 67+ Elements of Remote Sensing Mcqs online test. T his is exemplified by the use of imaging systems … There are three major remote sensing platforms: ground-level platform (towers and cranes), … The spectral region of the electromagnetic radiation which passes through the atmosphere without much … In remote sensing technique, the observation place, is called a platform B. 6. Each point or picture element gets different (pixel) digital numbers. Elements of Remote Sensing. July 1, 2019 November 9, 2018 by abbuiftkhar. 0.4 to 1.3, 1.5 to 1.8, 2.2 to 2.6 μm B. Potential Applications. … Basic Concept 7. These seven elements comprise the remote sensing process from beginning to end. (BS) Developed by Therithal info, Chennai. 25. Collection of Information/Data: The energy thus reflected and emitted by the earth's features are recorded by cameras and sensors fitted onto the various platforms. 3. For the purposes of this tutorial, we will use the following definition: "Remote sensing is the science (and to some extent, art) of acquiring information about the Earth's surface without actually being in contact with it. Stages 6. The use of sound is an obvious alternative; thus you can claim that your telephone conversation is indeed 'remote sensing'. Did you know that the idea of taking the still photographs of Earth for the objective of topographic mapping surfaced in the middle of the 1840s? Interaction of Sunlight with Terrestrial Features: Electromagnetic waves in sunlight have different wave lengths. 2. 7.Application (G) - the final element of the remote sensing process is achieved when we apply the information we have been able to extract from the imagery about the target in order to better understand it, reveal some new information, or assist in solving a particular problem. It is the resource for all activities of the life forms. 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