67+ Elements of Remote Sensing Mcqs online test. Remote Sensing Core Curriculum 1530 Cleveland Ave N, 115 Green Hall, St. Paul, MN 55108 (612) 625-5354 | jknight@umn.edu Elements of Remote Sensing - Section 1. 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 bands of radiation fall on the objects of the earth and get reflected, differently by different objects. 5. This is a modern technology that started when the camera was invented for the first time. The source of remote sensing data is the electromagnetic radiations which are emitted or reflected by the object, which then helps in their identification and classification. Sometimes the 'impression' that a buried artifact, such as an ancient fort foundation, leaves on the surface, can be detected and identified. Elements of Remote Sensing MCQ with Answers - Set 05 MCQ Remote Sensing Edit Practice Test: Question Set - 05. It is the resource for all activities of the life forms. These systems consist of a number of elements. 1. That surface impression is typically very subtle, so it helps to know the general area to be searched and the nature of the feature being sought. Basic Concept 7. 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 . 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. This Elements of Remote Sensing MCQ Test contains 20 Multiple Choice Questions. These seven elements comprise the remote sensing process from beginning to end. Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail. Finally, you can also take the Online Quiz from the Take Elements of Remote Sensing Quiz … These seven elements comprise the remote sensing process from beginning to end. 2. This is the civii engineering questions and answers section on 'Elements Of Remote Sensing' with the option for disscussion in forum , usefull for competitive examination and entrance test like GATE ESE PSU. 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. Remote sensing (image interpretation) has been used for archeological investigations. Process and Elements of 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. Solved examples with detailed answer description, disscussion in forum … 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. Remote sensing is the science of acquiring information about the Earth's surface without actually bein g in contact with it. Remote sensing systems which measure energy that is naturally available are called Passive Sensors. … Thus, all objects over the earth have temperatures above 0o K and therefore emit energy at varying levels. Copyright © 2018-2021 BrainKart.com; All Rights Reserved. General Utility 4. It consists of gamma rays to radio waves (short wave length). A Platform is defined as the carrier for remote sensing sensors. 2. In fact, sight, smell, and hearing all are the forms of remote sensing. The elements range from solar radiation to the application of imageries for public problems, through various stages. Sensors used 8. 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. Pick up the correct statement from the following? Sensors B. Through such reflectance, various wave lengths help in remote sensing to identify various elements over the earth. 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. 1. These seven elements comprise the remote sensing process from beginning to end. Interaction of Sunlight with Terrestrial Features: Electromagnetic waves in sunlight have different wave lengths. 3. 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. Interaction with the Target (C) - once the energy makes its way to the target through the atmosphere, it interacts with the target depending on the properties of both the target and the radiation. It monitors the earth’s natural and other resources and of determining the impact of man’s activities on air, water, and land. 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. Thus, the spectral reflectances from the earth, in fact earth objects, are of many thousand types. This interaction may take place a second time as the energy travels from the target to the sensor. A number of bands can be identified based on the wave lengths. This band of rays is called the 'electromagnetic radiation' (EMR). We will be covering all of these in sequential order throughout the five chapters of this tutorial, building upon the information learned as we go. ELEMENTS of REMOTE SENSING Multiple Choice Questions :-Q No: 1. 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. Each point or picture element gets different (pixel) digital numbers. Elements of Visual Image Interpretation REFERENCE: Remote Sensing of the Environment John R. Jensen (2007) Second Edition Pearson Prentice Hall. Passive sensors C. Active sensors D. None of these. Data Acquisition by the Earth Station: The electrical pulses from the remote sensors are converted into 'digital' numbers. The use of sound is an obvious alternative; thus you can claim that your telephone conversation is indeed '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. Transmission, Reception, and Processing (E) - the energy recorded by the sensor has to be transmitted, often in electronic form, to a receiving and processing station where the data are processed into an image (hardcopy and/or digital). The main goal of Remote Sensing (RS) is the production of maps, mainly thematic but also topographic. These seven elements comprise the remote sensing process from beginning to end. Potential Applications. Recording of Energy by the Sensor (D) - after the energy has been scattered by, or emitted from the target, we require a sensor (remote - not in contact with the target) to collect and record the electromagnetic radiation. … 4. 1. 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. Note, however that remote sensing also involves the sensing of emitted energy and the use of non-imaging sensors. For enquiries, contact us. The remote sensing techniques applied for the earth's surface features, is generally confined to the following wave lengths : A. Interpretation and Analysis (F) - the processed image is interpreted, visually and/or digitally or electronically, to extract information about the target which was illuminated. 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. Principle of Remote Sensing. The purpose of this online test is to help you evaluate your Elements of Remote Sensing Mcqs knowledge yourself. 1. Remote sensing is the acquisition of information about an object without coming in physical contact of that object. Remote Sensing Laboratory, Geography Department, Tel Aviv University, Israel GIS unit, the Society for the Protection of Nature in Israel noam71levin@hotmail.com. 6. 0.4 to 1.3, 1.5 to 1.8, 2.2 to 2.6 μm B. Questions related to Element of Remote Sensing can be found here in this section and you will get all necessary MCQs of this field. 1. The reflectance varies according to the wave length. 0. For example, if you take a photograph of your house, and on the picture you see that the house is composed of a roof, walls and windows, all of which appear as different colours, then this is remote sensing. B. Topological characteristics of an object are independent of scale measurement . The emission is in the form of various electromagnetic waves. Elements of Remote Sensing. 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. These seven elements comprise the remote sensing process from beginning to end. 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 … Stages 6. 6. The term is applied especially to acquiring information about the Earth. Thus, a satellite image is composed different digital values or pixels. Elements of Remote Sensing Civil Engineering Questions and Answers with explanation for placement, interview preparations, entrance test. Elements of Remote Sensing. The spectral region of the electromagnetic radiation which passes through the atmosphere without much … It is is the study of an object from a distance to know about the chemical and physical characteristics of the object. Elements of Remote Sensing. There are three major remote sensing platforms: ground-level platform (towers and cranes), … Enjoy the journey! 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. Sun as a Source of Energy: Sun is the prime source of energy to the world. CNR MilanoNational Research Council of Italy, Institute for the Electromagnetic Sensing of the EnvironmentMilanoItaly. In remote sensing technique, the observation place, is called a platform B. Interaction of Solar Energy with Atmospheric Elements: When the solar energy passes through the atmosphere, many elements await to meet the energy. Remote sensing is defined as collecting data and information about a target without coming in contact with it. In much of remote sensing, the process involves an interaction between incident radiation and the targets of interest. 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. Human eyes are a very good example of remote sensing. Emission of Sun's Energy : Solar energy is emitted into the space. 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? 4. A. The other two rely on direct contact with the source of information - which are they? 5. We will be covering all of these in sequential order throughout the five chapters of this tutorial, building upon the information learned as we go. Types 5. Remote sensing technology is used to summon information and understanding about an object while dealing with any physical contact. Passive & Active Remote Sensing • The sun provides a very convenient source of energy for remote sensing. Platform . Pick up the correct statement from the following: A. Elements of Remote Sensing - Section 1. 0. 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. Advantages of Remote sensing. 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