The type of radio wave responsible for long-distance communications by multiple skips is the. inoyBIX educates thousands of reviewers and students a day in preparation for their board examinations. The electric and magnetic fields of a radio wave are: b. perpendicular to the direction of travel. 2. Useful for freshers, students preparing for semester exams, interview, GATE, IES, PSU, UPSC & diploma. A. The propagation speed of radio waves in free space is ____________________ m/sec. in buildings, atmospheric attenuation (>~10 GHz) Reflected wave Reflection from a wall, passive antenna, ground, ionosphere (<~100MHz), etc. The radio waves can be sent from one place to another through ground wave propagation, sky wave propagation and space wave propagation. Unguided media – ground propagation, sky propagation, and line-of-sight propagation MCQs. Radio waves, Microwaves, or Infrared waves MCQs . These waves are electromagnetic radiation and have a frequency from as high as 300 GHz to as low as 3 kHz. D. 56.9 W. 16. Subject: Antenna and Wave Propagation 4. 28. At a far distance from the source, a radio wavefront looks like a flat ____________________-wave. 24. Radio waves are the waves having the longest wavelength in the electromagnetic spectrum. 595 nW. A certain dielectric has permittivity of 6.3 × 10-6 F/m and the same permeability as free space. If you are looking for a reviewer in Communications Engineering this will definitely help. we respect your privacy and take protecting it seriously, Electronic Communication Systems by Roy Blake, Multiple Choice Questions in Electronic Communication Systems – Blake, Pinoybix Elex is officially on Google Play | First of …, Complete List of Reviewers to Pass Engineering Board Exam, MCQ in Power Plant Engineering Part 6 | ME Board …, MCQ in Power Plant Engineering Part 5 | ME Board …, MCQ in Power Plant Engineering Part 4 | ME Board …, Blake: MCQ in Paging and Wireless Data Networking, Blake: MCQ in Personal Communications Systems, Blake: MCQ in Terrestrial Microwave Communication Systems, Blake: MCQ in Multiplexing and Multiple-Access Techniques, Blake: MCQ in Digital Modulation and Modems, Blake: MCQ in Wide-Area Networks and the Internet, Blake: MCQ in Introduction to Communication Systems. Řeka je příběh o mé rodině. The number of circular polarization modes (directions) is: 12. 3. The polarization of the radio wave can be defined by direction in which the electric vector E is aligned during the passage of atleast one full cycle.Also polarization can also be defined the physical orientation of the radiated electromagnetic waves in space.The polarization are three types. “Ghosts” on a TV screen are an example of ____________________ distortion. Q8: What is the distance from the far end of the ground wave to the nearest point where the sky wave returns to earth called? Radio Wave Propagation MCQs - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. _____ is the amount of voltage induced in wave by an electro magnetic wave. 2. Having covered the process in class these past weeks you are now well capable of taking up the quiz below with ease. a. MCQ in Radio Spectrum ; MCQ in Wave Propagation ; MCQ in Radiation Patterns ; MCQ in Wavelength Calculations ; MCQ in Radiation Resistance ; MCQ in Diversity Systems; Start Practice Exam Test Questions Part 1 of the Series. Study G3 - RADIO WAVE PROPAGATION [3 Exam Questions - 3 Groups] flashcards from Emanuel Tsarnas's Fordham University class online, or in Brainscape's iPhone or Android app. RF propagation is a particularly important topic for an… In which kind of array configuration, the element locations must deviate or adjust to some no planer surface like an aircraft or missile? Which is a possible polarization for an electromagnetic wave: 10. MCQs In Radiation And Wave Propagation Part I • PinoyBIX. 1) What is the wavelength of Super high frequency (SHF) especially used in Radar & satellite communication? 20. 18. Which of the following are electromagnetic: 6. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. Antenna and Wave Propagation … Radio waves were first demonstrated experimentally by: 3. Polarization of the incident wave 3. MCQ quiz on Antenna and Wave Propagation multiple choice questions and answers on antenna and wave propagation MCQ questions quiz on antenna and wave propagation objectives questions with answer test pdf. Sky wave propagation In ELF (Extremely low fr… Professionals, Teachers, Students and Kids Trivia Quizzes to … 4. In Radio communication systems, we use wireless electromagnetic waves as the channel. 12. This is the Multiple Choice Questions in Chapter 15: Radio-Wave Propagation from the book Electronic Communication Systems by Roy Blake. 25. Radio waves would most strongly reflect off: a. a flat insulating surface of the right size, b. a flat dielectric surface of the right size, c. a flat metallic surface of the right size. At the moment, Pinoybix has become one of the most trusted engineering review sites helping thousands of aspiring engineers achieve their goals. 9. Waves from an ____________________ source radiate equally in all directions. 1 cm – 10 cm c. 10 cm – 1 m d. 0.1 cm – 1 cm ANSWER: 1 cm – 10 cm 2) Which among the following is an application of high frequency? Diffraction, at high frequencies, depends upon 1. Tags. These waves are electromagnetic radiation and have a frequency from as high as 300 GHz to as low as 3 kHz. Electromagnetic radiation can be thought of as a stream of particles called ____________________. The dielectric strength of clean dry air is about ____________________ volts per meter. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. With ____________________ polarization, the direction of a radio wave’s electric field rotates as it travels through space. C. surface wave. The wavefront of a point source would have the shape of a ____________________. Mathematical prediction of radio waves was done by (a) Einstein (b) Hertz (c) Faraday (d) Maxwell. The electric field and magnetic field of a radio wave are (a) Perpendicular to each other (b) Perpendicular to the direction of propagation Quiz & question bank based on university syllabus covering all lessons, lecture notes, concepts & formula from textbooks. Radio waves are the waves having the longest wavelength in the electromagnetic spectrum. This is the Multiple Choice Questions in Chapter 15: Radio-Wave Propagation from the book Electronic Communication Systems by Roy Blake. 17. 40) By which name/s is an ionospheric propagation, also known as? RWP a) Linear. 23. A 20-dB reduction in the strength of a radio wave due to reflection is called: 22. Ground wave propagation c. Sky wave propagation d. All of the above. Q9: Which of the following are electromagnetic, Q10: The radio waves were demonstrated experimentally by, Your email address will not be published. The “fast fading” seen in mobile communications is caused by ____________________ waves interfering with direct waves. 1) and 2) are correct b. C. 56.9 nW. Also provides professionals with materials for their lectures and practice exams. Help me go forward with the same spirit. Frequency of the incident wave a. Geometry of the object 2. Tutorial of solved problems for oral viva questions. Give it a try and share your score. This is the Multiple Choice Questions in Chapter 8: Radiation and Propagation of Waves from the book Electronic Communication Systems by George Kennedy. 6. High-frequency waves are a. absorbed by the F2 layer b. reflected by the D layer c. capable of use for long-distance The technology that made cell phones practical was: 4. Unlike sound or water waves, radio waves do not need a ____________________ to travel through. a. Radio waves were mathematically predicted by ____________________. 11. Radio propagation, or the way in which radio signals travel can be an interesting topic to study. Wave propagation is any of the ways in which waves travel. Choose the letter of the best answer in each questions. 3. What is the characteristic impedance of that dielectric? The type of radio wave responsible for long-distance communications by multiple skips is the a. ground wave b. direct wave c. surface waves d. sky wave 281. Q3. 17. 13. However radio signals are affected by the medium in which they travel and this can affect the radio propagation or RF propagation and the distances over which the signals can propagate. Your email address will not be published. 22. Both the electric and magnetic fields of a radio wave are ____________________ to its propagation direction. Required fields are marked *. 14. 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