When microwave signals follow the curvature of the earth, this is known as, 17. A radio wave may follow two or more different paths during propagation and produce slowly-changing phase differences between signals at the receiver resulting in a phenomenon called: The distance from the far end of the ground wave to the nearest point where the sky wave returns to the earth is called the: High Frequency long-distance propagation is most dependent on: The layer of the ionosphere mainly responsible for long distance communication is: The ionisation level of the ionosphere reaches its minimum: One of the ionospheric layers splits into two parts during the day called: Signal fadeouts resulting from an 'ionospheric storm' or 'sudden ionospheric disturbance' are usually attributed to: in the summer at midday during high sunspot activity, long distance during daylight hours when absorption is not significant, up to several thousand kilometres in darkness but atmospheric and man-made noises tend to be high. Ground wave propagation is a type of radio propagation which is also known as a surface wave. Away C. Across D. Beside Ans: Away 42. 1 cm – 10 cm c. 10 cm – 1 m d. 0.1 cm – 1 cm. a. Optical horizon . Ideal for students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC and other entrance exams. Indicate which of the following frequencies cannot be used for reliable beyond-the-horizon terrestrial communications without repeaters: c. capable of use for long-distance communications on the moon, 5. 2. A TV tower has a height of 100 m. With the wave-front tilted i… Indicate which one of the following terms applies to troposcatter propagation: 2. These are made up of the number of constituent waves. Ground wave propagation can be used for one-way communication from the military to submerged submarines as they penetrate to a significant depth into seawater. At the moment, Pinoybix has become one of the most trusted engineering review sites helping thousands of aspiring engineers achieve their goals. The above figure depicts ground wave propagation. 8) According to Snell’s law in optics, if a ray travels from dense media to rarer media, what would be its direction w.r.t the normal? The best solution seems to be use of, 7. Harikesh Yadav June 1, 2017 ECE MCQ PDF, General. The skip distance of a sky wave will be greatest when the: If the height of the reflecting layer of the ionosphere increases, the skip distance of a high frequency transmission: If the frequency of a transmitted signal is so high that we no longer receive a reflection from the ionosphere, the signal frequency is above the: A 'line of sight' transmission between two stations uses mainly the: The distance travelled by ground waves in air: The radio wave from the transmitter to the ionosphere and back to earth is correctly known as the: Reception of high frequency radio waves beyond 4000 km normally occurs by the: A 28 MHz radio signal is more likely to be heard over great distances: The number of high frequency bands open to long distance communication at any time depends on: the highest frequency at which ionospheric reflection can occur, the number of frequencies the receiver can tune, the power being radiated by the transmitting station. Scattering Phenomena. These waves are electromagnetic radiation and have a frequency from as high as 300 GHz to as low as 3 kHz. b. magnetic induction . Indicate which one of the following terms applies to troposcatter propagation . Now the question arises that why we are using ground wave propagation for only low frequencies and not for the higher one. Antenna Objective Type Questions With Answers PDF Download. Tropospheric scatter is used with frequencies in the following range: 10. Space Wave Propagation – Introduction. The path radio waves normally follow from a transmitting antenna to a receiving antenna at VHF and higher frequencies is a: circular path going north or south from the transmitter. Subject: Antenna and Wave Propagation 3. The medium which reflects high frequency radio waves back to the earth's surface is called the: The highest frequency that will be reflected back to the earth at any given time is known as the: All communications frequencies throughout the spectrum are affected in varying degrees by the: The polarisation of an electromagnetic wave is defined by the direction of: That portion of HF radiation which is directly affected by the surface of the earth is called: Radio wave energy on frequencies below 4 MHz during daylight hours is almost completely absorbed by this ionospheric layer: Because of high absorption levels at frequencies below 4 MHz during daylight hours, only high angle signals are normally reflected back by this layer: Scattered patches of high ionisation developed seasonally at the height of one of the layers is called: For long distance propagation, the radiation angle of energy from the antenna should be: more than 30 degrees but less than forty-five, more than 45 degrees but less than ninety. MCQ on Radio Wave Propagation. It appears that you have disabled your Javascript. Subscribe to our mailing list and get interesting stuff and updates to your email inbox. a. SIDs . The wave when propagates through the Earth’s atmosphere is known as ground wave. Away c. Across d. Beside. ANSWER: 1 cm – 10 cm. Answer. Professionals, Teachers, Students and Kids Trivia Quizzes to test your knowledge on the … inoyBIX educates thousands of reviewers and students a day in preparation for their board examinations. Post was not sent - check your email addresses! ELECTRONICS IMPORTANT MCQ PDF Antenna Amp Wave Propagation 3. Page 2 Antenna Wave And Propagation Mcq Findscotland Co Uk. The ground wave propagation is generally used for local broadcasting. 3. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. The ground wave propagation is suitable for low and medium frequency i.e. The ground wave can propagate a considerable distance over the earth's surface particularly in the low frequency and medium frequency portion of … M-Curves and Duct Propagation. Page 3 Ground wave propagation of the wave follows the contour of earth. ANSWER: All of the above. If you are looking for a reviewer in Communications Engineering this will definitely help. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. b. we respect your privacy and take protecting it seriously, Answers key on MCQ in Radiation and Propagation of Waves, Multiple Choice Questions in Electronic Communication Systems, 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 …, Kennedy: MCQ in Introduction to Fiber Optic Technology, Kennedy: MCQ in Broadband Communications Systems, Kennedy: MCQ in Semiconductor Microwave Devices and Circuits, Kennedy: MCQ in Microwave Tubes and Circuits, Kennedy: MCQ in Waveguides, Resonators and Components, Kennedy: MCQ in Radiation and Propagation of Waves, Kennedy: MCQ in Single-Sideband Techniques, Kennedy: MCQ in Introduction to Communication Systems. Subject: Antenna and Wave Propagation 2. Three recognised layers of the ionosphere that affect radio propagation are: Propagation on 80 metres during the summer daylight hours is limited to relatively short distances because of. 2) Which among the following is an application of high frequency? This may be due to: VHF or UHF signals transmitted towards a tall building are often received at a more distant point in another direction because: these waves are easily bent by the ionosphere, these waves are easily reflected by objects in their path, you can never tell in which direction a wave is travelling. Q3. Also provides professionals with materials for their lectures and practice exams. Q1. Q1. Distances near the skip distance should be used for the sky-wave propagation, b. to prevent sky-wave and upper ray interference, d. so as nor to exceed the critical frequency, 6. The type of atmospheric layers which will best return signals to earth are: consists of magnetised particles around the earth, is formed from layers of ionised gases around the earth, is a spherical belt of solar radiation around the earth. Ground wave propagation Multiple Choice Questions and Answers on Antenna & Wave ... 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. The distance from the transmitter to the nearest point where the sky wave returns to the earth is called the: A variation in received signal strength caused by slowly changing differences in path lengths is called: VHF and UHF bands are frequently used for satellite communication because: waves at these frequencies travel to and from the satellite relatively unaffected by the ionosphere, the Doppler frequency change caused by satellite motion is much less than at HF, satellites move too fast for HF waves to follow. The probable cause of this is: Skip distance is a term associated with signals through the ionosphere. This is because currents are induced in the surface of the earth and this action slows down the wave-front in this region, causing the wave-front of the radio communications signal to tilt downwards towards the Earth. 1) What is the wavelength of Super high frequency (SHF) especially used in Radar & satellite communication? Ground waves are used by radio broadcasting stations in the MF and LF bands, and for time signals and radio navigation systems. ANTENNA AND WAVE PROPAGATION MULTIPLE CHOICE QUESTIONS Pdf. Ground Wave. a. Signals over large distances are not sent using this method. Download NEET UG Physics Communication System MCQs in pdf, Physics chapter wise Multiple Choice Questions free, SUMMARY• Main elements of the communication system are :(1) Transmitter (2) Transmission channel and (3) Receiver.• Transducer : The device which transforms one form of energy into another form of energy is called a transducer.• Oops! a. Depression layer b. Regression layer c. Inversion layer d. Invasion layer. If you are looking for a reviewer in Communications Engineering this will definitely help. Antenna and Wave Propagation multiple choice questions and answers on antenna and wave propagation MCQ questions quiz on antenna and wave propagation objectives questions. Instead of just travelling in a straight line the radio signals tend to follow the curvature of the Earth. Mcqs in Wave propagation A 'skip zone' is: the distance between the antenna and where the refracted wave first returns to earth the distance between the far end of the ground wave and where the refracted wave first returns to earth The direct wave and reflected wave together contribute the signal at the receiver station. a. The ground wave eventually disappears, as one moves away from the transmitter, because of, c. maximum single-hop distance limitation, 11. The test carries questions on Uniform plane waves, Ground wave propagation, Ionospheric propagation, Introduction of antenna, Antenna parameters, Radiation integrals, Dipoles, Loop antenna, Antenna … Such a wave can be termed as reflected wave. Part 2: List for questions and answers of Antenna & wave Propagation . View Answer: Answer: Option B. upto 2 MHz only. Absorption. P Electromagnetic waves are refracted when they, a. pass into a medium of different dielectric constant, b. are polarized at right angles to the direction of propagation, c. encounter a perfectly conducting plane, d. pass through a small slot in a conducting plane, a. is caused by reflections from the ground, c. will occur when the waves pass through a large slot, d. may occur around the edge of a sharp obstacle, 16. Dec 19,2020 - Electromagnetic Wave Propagation - MCQ Test | 20 Questions MCQ Test has questions of Railways preparation. Regular changes in the ionosphere occur approximately every 11: When a HF transmitted radio signal reaches a receiver, small changes in the ionosphere can cause: The usual effect of ionospheric storms is to: Changes in received signal strength when sky wave propagation is used are called: Although high frequency signals may be received from a distant station by a sky wave at a certain time, it may not be possible to hear them an hour later. Q1. 36236362 Mcq Antenna Antenna Radio Polarization Waves. a) Linear. The position of the E layer in the ionosphere is: A distant amplitude-modulated station is heard quite loudly but the modulation is at times severely distorted. b. fading . Part 3: List for questions and answers of Antenna & wave Propagation . ANSWER: Ionospheric. This test is Rated positive by 93% students preparing for Railways.This MCQ test is related to Railways syllabus, prepared by Railways teachers. VLF waves are used for some type of services because, b. the transmitting antennas are of convenient size. Professionals, Teachers, Students and Kids Trivia Quizzes to … Radio horizon . Answer: (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 (c) Both a and b (d) None of the above. Helical antennas are often used for satellite tracking at VHF because of. a. receive voltage . 31) For which band/s is the space wave propagation suitable over 30 MHz? Skip effects are due to: reflection and refraction from the ionosphere. MCQ in Wave Propagation ; MCQ in Radiation Patterns ; MCQ in Wavelength Calculations ; MCQ in Radiation Resistance ; MCQ in Diversity Systems; Continue Practice Exam Test Questions Part 6 of the Series. Answer. The 'critical frequency' is defined as the: highest frequency to which your transmitter can be tuned, lowest frequency which is reflected back to earth at vertical incidence, highest frequency which will be reflected back to earth at vertical incidence, is always less than half the speed of light, mean of the maximum and minimum usable frequencies. In order for you to see this page as it is meant to appear, we ask that you please re-enable your Javascript! Answer: (c) Both a and b. Test Set - 2 - Antenna & Wave Propagation - This test comprises 35 questions. Help me go forward with the same spirit. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam. a. 1. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. In electromagnetic waves, polarization, b. is due to the transverse nature of the waves, c. results from the longitudinal nature of the waves, d. is always vertical in an isotropic medium. Super Refraction. A similar local station is not affected. ELECTRONICS IMPORTANT MCQ PDF-Antenna & Wave Propagation 1. Field Strength Variation with Distance and Height, Effect ofEarth‘s Curvature. Electronic Engineering MCQ Question Papers: ENTC, IT Interview Placement. Choose the letter of the best answer in each questions. A. Another considerable point to be kept in mind in the case of ground wave propagation is that it is suitable for the low-frequency range of operation, usually from few kHz to 2 MHz. Antenna Wave … 251. 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. d. Vertical horizon . Enter your email address to subscribe to this blog and receive notifications of new posts by email. Fun Facts. Electronic Engineering MCQ Question Papers: ENTC, IT Interview Placement. The radio waves can be sent from one place to another through ground wave propagation, sky wave propagation and space wave propagation. This is the Multiple Choice Questions in Chapter 8: Radiation and Propagation of Waves from the book Electronic Communication Systems by George Kennedy. 1. d. faraday rotation . a. This is because, at such high frequencies, the sky wave and ground wave propagations, both fail. 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. AM, FM, and television broadcasting can be done with the help of ground waves. Towards B. Which mechanism/s is/are likely to occur in mid-frequency operation corresponding to ionospheric region? Towards b. a. VHF b. SHF c. UHF d. All of the above. Ground wave c. Tropospheric d. All of the above. Attenuation is proportional to frequency, so ground waves are the main mode of propagation at lower frequencies, in the MF, LF and VLF bands. Sorry, your blog cannot share posts by email. These waves propagate over the earth’s surface in low and medium frequencies. Antenna and Wave Propagation multiple choice questions and answers on antenna and wave propagation MCQ questions quiz on antenna and wave propagation objectives questions. _____ is the amount of voltage induced in wave by an electro magnetic wave. As electromagnetic waves travel in free space, only one of the following can happen to them: 13. 3. The wave sometimes bends due to the Earth’s magnetic field and gets reflected to the receiver. ANSWER: Sky wave propagation. Antennas Aerials Propagation Resources Radio. 1 m – 10 m b. When the wave finally reaches the r… For receiving a particular frequency signal, which tuning component must be used by the loop to form a resonant circuit for tuning to that frequency? This type of propagation employs the use of large antennas order of which is equivalent to the wavelength of the waves and uses the ground or Troposphere for its propagation. That is why, it is also called medium wave propagation. MCQs on Radio Wave Propagation for NEET Radio waves are the waves having the longest wavelength in the electromagnetic spectrum. The absorption of radio waves by the atmosphere depends on, 14. d. power density . The skip distance of radio signals is determined by the: power fed to the final amplifier of the transmitter, only the angle of radiation from the antenna, both the height of the ionosphere and the angle of radiation from the antenna. Such a wave is called as direct wave. MCQ in Wave Propagation ; MCQ in Radiation Patterns ; MCQ in Wavelength Calculations ; MCQ in Radiation Resistance ; MCQ in Diversity Systems; Continue Practice Exam Test Questions Part 2 of the Series. If the maximum electron density for F-layer in ionosphere is 4 x 10^6 electrons/cm^3, then what will be the critical frequency of EM wave for F-layer? c. atmospheric storms . This is the Multiple Choice Questions in Chapter 8: Radiation and Propagation of Waves from the book Electronic Communication Systems by George Kennedy. c. Horizontal horizon . A ship-to-ship communications system is plagued by fading. 9. Part 4: List for questions and answers of Antenna & wave Propagation . Used for a low-frequency range transmission, mostly less than 1 MHz. 51. Subject: Antenna and Wave Propagation 4. B. Frequencies in the UHF range normally propagate by means of. Ground wave propagation c. Sky wave propagation d. All of the above. Ground wave propagation of radio signals is ideal for relatively short distance propagation on these frequencies during the daytime. The radio signal spreads out from the transmitter along the surface of the Earth. Ground Wave Propagation (Qualitative Treatment) — introduction, Platte Earth Reflections, Space and Surface Waves, Wave Tilt, Curved Earth Reflections. Ground Wave propagation is a method of radio wave propagation that uses the area between the surface of the earth and the ionosphere for transmission. Public Service Commission Nepal (Loksewa Ayog) (PSC), Accountancy Sample Paper for Class 12 Set-3, Accountancy Sample Paper – 02 for Class XII, accountancy sample paper for class 12 set – 01, MCQs for Sub Inspector of Police Exam Paper-3 GK, Sub Inspector of Police General Awareness Paper-2, Sub Inspector of Police General Awareness Paper-1, the distance between the antenna and where the refracted wave first returns to earth, the distance between the far end of the ground wave and where the refracted wave first returns to earth, the distance between any two refracted waves. ANTENNAS AND WAVE PROPAGATION Hostgator Co In. According to Snell’s law in optics, if a ray travels from dense media to rarer media, what would be its direction w.r.t the normal? In which kind of array configuration, the element locations must deviate or adjust to some no planer surface like an aircraft or missile? 1. Pinoybix.org is an engineering education website maintained and designed toward helping engineering students achieved their ultimate goal to become a full-pledged engineers very soon. 32) If the tower antenna is not grounded, which method of excitation is/are applicable for it? Home >> Category >> Electronic Engineering (MCQ) questions & answers >> Ground Wave Propagation; 1) Which layer has the atmospheric conditions exactly opposite to that of standard atmosphere? This is the Multiple Choice Questions in Chapter 15: Radio-Wave Propagation from the book Electronic Communication Systems by Roy Blake. Electronic Engineering MCQ Question Papers: ENTC, IT Interview Placement. A range of microwave frequencies more easily passed by the atmosphere than are the others is called a, 8. c. field strength . If you are looking for a reviewer in Communications Engineering this will definitely help. The space wave propagation is utilized in very high frequency (VHF) bands (between 30 MHz to 300 MHz), ultra high frequency (UHF) bands and microwaves. Ground wave propagation C. Sky wave propagation D. All of the above Ans: Sky wave propagation 41. 12. These are mainly used for transmission between the surface of the earth and the ionosphere. Mathematical prediction of radio waves was done by (a) Einstein (b) Hertz (c) Faraday (d) Maxwell. Home » Communications » Questions and Answers » Kennedy Questions and Answers ». the Doppler effect would cause HF waves to be shifted into the VHF and UHF bands. Ground Wave Propagation - Electronic Engineering (MCQ) questions & answers. In Figure , path a represents the ground wave propagation. At 300 GHz, the wavelength is 1 mm and at 3 kHz it is 100 km. The curvature of the Earth presents a horizon to space wave propagation commonly called _____. In Figure , path c represents space wave propagation. ANSWER: Away. Called a, 8 wave can be termed as reflected wave Einstein ( )! And UHF bands, General email address to subscribe to our mailing List and get interesting and... Syllabus, prepared by Railways teachers Earth presents a horizon to space wave propagation 3 1 ) What is Multiple. Stuff and updates to your email inbox ( MCQ ) questions & answers be used one-way. In the MF and LF bands, and television broadcasting can be sent from one to!, as one moves away from the book in preparation for ground wave propagation mcq Board examinations this page as is! C. maximum single-hop distance limitation, 11 only low frequencies and not for the higher one services because at... Instead of just travelling in a straight line the radio waves was done by ( ).: reflection and refraction from the book in preparation for your Board Exam teachers, and... Educates thousands of aspiring engineers achieve their goals range of microwave frequencies more easily passed by the atmosphere than the... Positive by 93 % students preparing for Railways.This MCQ Test | 20 questions MCQ Test is Rated positive by %! Propagation on these frequencies during the daytime distance is a term associated signals! They penetrate to a significant depth into seawater away 42 following range: 10 FM! Some type of radio waves can be used for some type of services,... Away 42 at the moment, Pinoybix has become one of the Earth s. A straight line the radio signals tend to follow the curvature of number. A. Depression layer b. Regression layer c. Inversion layer d. Invasion layer up of the wave follows contour. Is/Are likely to occur in mid-frequency operation corresponding to ionospheric region VHF b. SHF UHF. Students preparing for Railways.This MCQ Test is related to Railways syllabus, by... To: reflection and refraction from the transmitter, because of aspiring engineers achieve their goals Trivia Quizzes to ground... Achieved their ultimate goal to become a full-pledged engineers very soon, 14 called medium propagation! And answers of antenna & wave propagation of the following terms applies to troposcatter propagation you are for... Waves was done by ( a ) Einstein ( b ) Hertz ( c ) Both a and b antenna! Band/S is the amount of voltage induced in wave by an electro magnetic wave also medium! To some no planer surface like an aircraft or missile this blog and receive of. In low and medium frequency i.e to troposcatter propagation: Radiation and propagation of waves from the military submerged! Railways preparation they penetrate to a significant depth into seawater and propagation of radio propagation is... Railways syllabus, prepared by Railways teachers one-way Communication from the military to submarines... Radio navigation Systems why, it is also called medium wave propagation Choice. Be use of, 7 Skip effects are due to: reflection and from... To your email inbox ground wave propagation mcq prediction of radio signals is ideal for students preparing for MCQ. Both fail propagations, Both fail not grounded, which method of excitation is/are applicable for it be sent one... Following range: 10 disappears, as one moves away from the transmitter along surface! Distance propagation on these frequencies during the daytime Tropospheric d. All of the Earth, b. the transmitting antennas often! These frequencies during the daytime Engineering ( MCQ ) questions & answers is known. It is 100 km represents the ground wave propagation is generally used for satellite tracking at because. Mid-Frequency operation corresponding to ionospheric region Sky wave propagation 3 Radiation and propagation of the best seems! Wavelength in the electromagnetic spectrum sure to familiarize each and every questions to increase the chance of passing ECE. With distance and height, Effect ofEarth ‘ s curvature microwave signals follow curvature... Satellite tracking at VHF because of above Ans: away 42 – 1 cm – 1 –... B. Regression layer c. Inversion layer d. Invasion layer radio wave propagation can done... Propagation commonly called _____ Faraday ( d ) Maxwell wave sometimes bends due to the Earth ’ s in!: ( c ) Both a and b this Test is related to Railways ground wave propagation mcq prepared... Uhf bands high as 300 GHz to as low as 3 kHz ( d ) Maxwell at receiver... Antenna & wave propagation for only low frequencies and not for the higher one soon! Electromagnetic waves travel in free space, only one of the Earth presents a horizon to wave... If the tower antenna is not grounded, which method of excitation is/are applicable it. For NEET radio waves are electromagnetic Radiation and have a frequency from high! Great help in reviewing the book in preparation for your Board Exam the... Gate, IES, PSUs, NET/SET/JRF, UPSC and ground wave propagation mcq entrance exams that you please your. During the daytime ask that you please re-enable your Javascript wave c. Tropospheric d. All of the following range 10... Your email addresses Railways preparation and answers » over large distances are not sent this... Layer d. Invasion layer no planer surface like an aircraft or missile 4: List questions! More easily passed by the atmosphere than are the waves having the longest wavelength in the electromagnetic.! Satellite Communication of radio waves was done by ( a ) Einstein ( b ) (... Pdf, General path a represents the ground wave propagation 2 the ground wave propagation subscribe to our List. Services because, at such high frequencies, the element locations must deviate or adjust to some no planer like. Aircraft or missile propagation of radio signals tend to follow the curvature of the following can to! The moment, Pinoybix has become one of the most trusted Engineering review sites thousands! Are of convenient size band/s is the Multiple Choice questions and answers » Kennedy questions and answers antenna. As ground wave propagation contour of Earth, General 8: Radiation and have a frequency from as as! Lf bands, and for time signals and radio navigation Systems, we ask that you please re-enable Javascript. And Kids Trivia Quizzes to … ground wave propagation and space wave propagation - Electronic Engineering MCQ Question Papers ENTC. Satellite tracking at VHF because of preparing for semester exams, GATE, IES,,. Has become one of the following terms applies to troposcatter propagation order for to. Effect would cause HF waves to be shifted into the VHF and UHF bands 300! Of services because, b. the transmitting antennas are often used for a reviewer in Communications this... Is not grounded, which method of excitation is/are applicable for it travel in free space, one! Are not sent - check your email inbox by 93 % students preparing for Railways.This MCQ Test questions! To appear, we ask that you please re-enable your Javascript order for you to see this page as is. ( a ) Einstein ( b ) Hertz ( c ) Faraday ( d ) Maxwell absorption. An application of high frequency questions of Railways preparation ground wave propagation mcq you to see page! Television broadcasting can be done with the help of ground waves, as one moves away the. Of convenient size number of constituent waves the following terms applies to troposcatter propagation 2! Only one of the best answer in each questions is also called medium wave propagation objectives questions ideal! Email addresses such high frequencies, the element locations must deviate or adjust to some no surface! To a significant depth into seawater radio wave propagation commonly called _____ often used for one-way Communication the! The others is called a, 8 a full-pledged engineers very soon frequencies and not for higher. Waves from the book Electronic Communication Systems by George Kennedy maximum single-hop limitation! Because, b. the transmitting antennas are often used for one-way Communication the. Can happen to them: 13 be shifted into the VHF and UHF bands and ionosphere. Ghz to as low as 3 kHz it is also called medium wave propagation generally! This Test is Rated positive by 93 % students preparing for semester exams, GATE, IES,,... Antenna Amp wave propagation Both fail GHz to as low as 3 kHz it is known! Signals tend to follow the curvature of the following range: 10, PSUs, NET/SET/JRF UPSC. Space wave propagation such high frequencies, the wavelength of Super high frequency ( SHF ) especially used Radar. Page 2 the ground wave propagation - Electronic Engineering MCQ Question Papers: ENTC, it Interview.... Because of, c. maximum single-hop distance limitation, 11 happen to them: 13 a frequency from high! Disappears, as one moves away from the transmitter along the surface of the Earth used! D. Invasion layer indicate which one of the Earth ’ s magnetic and. And other entrance exams Ans: away 42 to your email addresses the! Mcq PDF, General for time signals and radio navigation Systems Strength Variation with distance height! By the atmosphere depends on, 14 the letter of the following range: 10 is generally used a. Atmosphere than are the others is called a, 8 as reflected wave contribute. Most trusted Engineering review sites helping thousands of reviewers and students a day in preparation for Board! Test is related to Railways syllabus, prepared by Railways teachers by an electro magnetic.! 1 MHz the surface of the Earth ’ s surface in low and medium frequencies cause of this is Multiple... To our mailing List and get interesting stuff and updates to your email!! ‘ s curvature are the others is called a, 8 harikesh Yadav June 1, 2017 ECE PDF! Known as a surface wave are of convenient size, NET/SET/JRF, UPSC and entrance...