The frequency range of 300 kHz to 3000 kHz is known as, A. low frequency A radio signal’s ____________________ is the distance it travels in one cycle of the carrier. If you have 100 mV of signal and 10 mV of noise, both across the same 100-ohm load, what is the signal-to-noise ratio in dB? 106 kHz If output power of a radio receiver is doubled, its volume is increased by __________ dB. C. reflected colour for opaque object and wavelength transmitted through it for transparent objects What Is Crosstalk? 2 bit/ symbol c. 4 bit/ symbol d. None of the above. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. (b) Output is dependent … C. is more than that of dipole D. horizontal retrace, 59. 35 kHz Home » COMMUNICATION SYSTEMS Questions » 300+ TOP COMMUNICATION SYSTEMS Questions and Answers pdf, 1. 100 kHz Two cascaded amplifiers each have a noise figure of 5 and a gain of 10. Why is thermal noise called “white noise”? Required fields are marked *. C. change the antenna orientation of location Most Asked Technical Basic CIVIL | Mechanical | CSE | EEE | ECE | IT | Chemical | Medical MBBS Jobs Online Quiz Tests for Freshers Experienced. Control Systems objective questions (MCQs) and answers for competitive & university exams. In ____________________, you split the bandwidth of a channel into sub-channels to carry multiple signals. 10 GK Questions and Answers on the transport and communication system in India with an explanation for self-assessment which will be helpful for the competitive exams like UPSC/PCS/SSC/CDS etc. Which of the following is used to generate PDM? 10. C. it results in better reception A. 54. The baseband bandwidth for a voice-grade (telephone) signal is: 14. B. prevent over modulation C. is due to transverse nature of waves D. Remains unchanged, 56. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. 16. Data Structures Multiple Choice Questions(MCQs) and Answers | Data Structures & Algorithms objective questions C. A is correct but R is wrong The main function of a balanced modulator is to, A. produce balanced modulation of a carrier wave Disabling a receiver during a burst of atmospheric noise is called ____________________. 33. MCQ on Digital Communication ... ANSWER: (b) Π. If you are looking for a reviewer in Communications Engineering this will definitely help. Answer: Source, Transmitter, Channel, Receiver, Destination, Answer: Thermal, Shot, Partition, 1/f, transit-time. Quiz & question bank based on university syllabus covering all lessons, lecture notes, concepts & formula from textbooks. 19. B. cheaper D. directional antenna. C. a cathode follower stage This is the complete list of Multiple Choice Questions from the book Electronic Communication Systems by George Kennedy. Practice for BBA or MBA exams using these MCQ. D. may be equal, more or less than that of dipole. The frequency band used to modulate the carrier is called the ____________________ band. The transmission of radio waves was first done by: 4. D. the lower modulating power requirement. For a low level AM system, the amplifiers modulated stage must be, A. linear devices C. prevent excessive grid current 30. B. Laser beam for recording and video head for playback B. two tone modulation P A. To reduce bandwidth C. inductance Likewise, thermal noise has equal power density over a wide range of frequencies. What do you understand by Communication. 11. inoyBIX educates thousands of reviewers and students a day in preparation for their board examinations. Mathematically, a spectrum is represented by a ____________________ series. B. infinite capacity B. B. Impurities B. connect a booster List of 200+ marketing objective type or multiple choice (MCQ) question and answers! Multiple Choice Questions and Answers on Digital Communication . Phase Analogue Modulation C. broad band antenna Objective Questions and Answers on Digital communication . 8. The communication principle “interpersonal communication is irreversible” means_____. 18. D. non-linear devices, 21. The telephone was invented in the year ____________________. A woofer should be fed from the input through a, A. low pass filter 43. For a given carrier wave, maximum undistorted power is transmitted when value of modulation is, 24. B. PWM Assertion (A): In FM the frequency of the carrier is varied by the modulating voltage. C. high power output per transistor These questions are frequently asked in all Trb Exams, Bank Clerical Exams, Bank PO, IBPS Exams and all Entrance Exams 2017 like Cat Exams 2017, Mat Exams 2017, Xat Exams 2017, Tancet Exams 2017, MBA Exams 2017, MCA Exams 2017 and SSC 2017 Exams. Bear in your mind that, failures, emergencies or critical points about a project must be communicated face to face. B. is caused by reflection A. B. In case of frequency modulation, modulating voltage remains constant if the modulating frequency is lowered, then, A. amplitude of distant sidebands decreases C. … B. quantising noise can be overcome by companding C. Reactance FET modulator In TV systems, equalizing pulses are sent during, A. horizontal blanking D. Phase Amplitude Modulation, 47. A telephone channel requires a bandwidth of about, 23. How does the transmitted power change? C. Pulse Amplitude Modulation Choose the letter of the best answer in each questions. B. half duplex arrangement C. 200 and 100.1 Both A and R are correct but R is not correct explanation of A The theory of radio waves was originated by: 2. A three stage telephone switching structure is to have 128 input and 128 output terminals. Question 11. Radio signals first were sent across the Atlantic in the year ____________________. This can be avoided by using, A. space diversity D. none of the above, 5. 14. B. 150 kHz B. reduces the amplitude of signals 3. Multiple Choice Questions and Answers By Sasmita January 9, 2020 1) The modulation technique used for mobile communication systems during world war II was a. Which of the following is/are the main part(s) of basic cellular system. (a) Output is independent of control input. 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Leak type bias is used in plate modulated class C amplifier to, A. increase the bandwidth For AM receivers the standard IF frequency is, A. AM only D. single tone modulation, 11. The power density of “flicker” noise is: 19. The values of initial (without frequency translation) and final (after frequency translation) fractional change in frequency from one band edge to the other are, A. D. band stop filter. C. good attenuation characteristics C. Delta modulation 10. 53. B. Communication Skills multiple choice questions and answers on Communication Skills MCQ questions quiz on Communication Skills objective questions. C. both AM and FM 4. Which of these is the external sounds present in the channels of communication? 32. 1. C. high frequency C. 88 MHz Which of the following is an indirect way of generating FM? The part, or parts, of a sinusoidal carrier that can be modulated are: c. its amplitude, frequency, and direction, d. its amplitude, frequency, and phase angle. C. Gets increased by 50 percent D. None of the above, 26. B. the wavelength transmitted through it D. all of the above, 35. In case of low level amplitude modulation system, the amplifiers following the modulated stage must be, A. class C amplifiers For telegraphy the most commonly used modulation system is, A. FSK One of the advantages of base modulation over collector modulation of a transistor class C amplifier is, A. improved efficiency B. Convex lens has negative focal power and concave lens have positive focal power A. Convex lens has positive focal power and concave lens have negative focal power Answer: When current flows through a diode, it generates shot noise that can be represented as a current source, the output of which is a noise current. Sarah answers questions asked by the professor in class in a snide, sarcastic manner. Business Communication MCQ is important for exams like MAT, CAT, CA, CS, CMA, CPA, CFA, UPSC, Banking and other Management department exam. Professionals, Teachers, Students and Kids Trivia Quizzes to test your knowledge on the subject. B. series capacitance. When two or more signals share a common channel, it is called: c. the distance a wave travels in one period, d. how far the signal can travel without distortion, a. creation of harmonics of baseband frequencies, b. baseband frequencies “mixing” with each other, c. shift in phase relationships between baseband frequencies. Dear Readers, Welcome to OFFICE PROCEDURES Objective Questions and Answers have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of OFFICE PROCEDURES Multiple choice Questions.These Objective type OFFICE PROCEDURES are … MULTIPLE CHOICE QUESTIONS – WIRELESS COMMUNICATION 1. C. serrations 12. B. Varactor diode modulator C. class C amplifiers In a TV receiver antenna the length of reflector rod, A. is the same as that of dipole The bandwidth required for a modulated carrier depends on: 7. The job of the carrier is to get the information through the ____________________. D. … Explain why you could use a diode as a noise source with a spectrum close to that of pure thermal noise. Which one of the following is analog? Help me go forward with the same spirit. D. harmonic devices, 38. The modulation index of an FM is changed from 0 to 1. C. eliminates any change in amplitude of received FM signals Multiple choice Questions on Business Communication. It is found that a ship to ship communication suffers from fading. Digital Communication Interview Questions ; Question 12. A. 12. This set of Professional Communication Multiple Choice Questions & Answers (MCQs) focuses on “Barriers of Communication”. C. either (a) or (b) Professionals, Teachers, Students and Kids Trivia Quizzes to test your knowledge on the subject. D. none of the above, 28. For a plate-modulated class C amplifier the plate supply voltage is E. The maximum plate cathode voltage could be almost high as, 58. View answers to several hundred agriculture questions, all of which are explained in a way that's easy for you to understand. A microwave receiver has a noise temperature of 145 K. Find its noise figure. 19. ANSWER: (a) 1 bit/ symbol. D. limit noise picked by a receiver, Your email address will not be published. An audio signal (say from 50 Hz to 10000 Hz) is frequency translated by a carrier having a frequency of 106 Hz. Practice Multiple Choice Questions for Data Communication and Networking of computer awareness for SSC and banking exams. Answer: Communication is the process by which data … C. a fundamental sine wave and harmonics The characteristic impedance of a twin wire feeder used for TV signals is about, A. If you are looking for a reviewer in Communications Engineering this will definitely help. C. Micro bending 36. Crosstalk can also occur in radios, televisions, networking equipment, and even electric guitars. D. results from longitudinal nature of waves, 45. Useful for freshers, students preparing for semester exams, interview, placement, GATE, IES, PSU, UPSC & diploma. C. Video head for recording and laser beam for playback What is the purpose of peak clipper circuits in radio transmitters? B. Driver. 29. C. amplitude of distant sidebands remains constant As per Shannon-Hartley theorem, a noise less Gaussian channel has, A. zero capacity B. a fundamental sine wave and even harmonics Answer: This project manager interview question will assess your risk management and communication management experience together. Home » Communications » Questions and Answers » Blake Questions and Answers ». C. JK flip-flop C. 1.07 MHz 5. D. orthogonal. 9. B. produce 100% modulation This article will also help you to crack various competitive examinations. C. the radiation is zero in all directions 42. 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. 200 and 10.01 C. small capacity The colour of an object is decided by, A. the reflected colour B. phase cancellation method Get help with your agriculture homework! Find NF, both in dB and as a ratio. a) Noise b) Semantic problems c) Cultural barriers d) Over communication View Answer B. statistically independent D. neither (a) nor (b), 2. Signal-to-Noise ratio is calculated as: a. signal voltage divided by noise voltage, c. first add the signal power to the noise power, then divide by noise power, a. how much noise is in a communications system, c. how much noise an amplifier adds to a signal. To avoid blocking the number of intermediate paths required is, 60. Skip distance depends on time of day and angle of incidence. 10. D. A is wrong but R is correct, 22. Since the power in the shot noise is proportional to the diode current, controlling the diode current controls the noise power. The VHF band starts at ____________________ MHz. 9. Reason (R): FM and PM are two forms of angle modulation. D. 100 ohm, A. amplifiers low frequency signals These Marketing MCQs are equally useful for students for MBA, MMS, BBA, Bcom, Mcom, PGDM, MMM and MCA. Best OFFICE PROCEDURES Objective type Questions and Answers. The more information per second you send, the ____________________ the bandwidth required. C. Sender. D. Schmitt trigger, A. filter method The input to an amplifier has a signal-to-noise ratio of 100 dB and an output signal-to-noise ratio of 80 dB. 6. C. To increase bandwidth 1. D. All lens have negative focal power, A. resultant wave FM transmitting and receiving equipment as compared to AM equipment is, A. costly 500 ohm The most common example is hearing an unwanted conversation on the telephone. 15. When two noise voltages, V1 and V2, are combined, the total voltage VT is: 22. The professor comments that this type of communication is unacceptable in her classroom even if the answers … This Data Communication and Networking – Network Management: SNMP multiple choice Questions and Answers (MCQ) PDF covers the below lists of topics. Answer : Crosstalk is a form of interference caused by signals in nearby conductors. Page 1. Stepped index operation If you are looking for a reviewer in Communications Engineering this will definitely help. A) A mobile Unit B) A cell Site C) A mobile Telephone Switching Office D) All of the above 2. Free running multi-vibrator A. shunt capacitance. Fading of the received radio signals in a mobile communication environment occurs because of ..... A) Direct propagation Effective communication is important all the time in every situation … 17. 2. 1. D. none of the above, A. large bandwidth is required Answer: Light is pink when it contains more red than it does other colors, and red is at the low end of the visible spectrum. B. 1 bit/ symbol b. C. almost equally costly 200 and 1.01 These days internet is highly in trend, you can practice internet objective questions and answers for better performance. Dear Readers, Welcome to Optical Fiber Communication multiple choice questions and answers with explanation. 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FM only VSB modulation is preferred in TV because, A. it reduces the bandwidth requirement to half D. 1280 kHz, 41. B. it avoids phase distortion at low frequencies In practical commercial FM system, channel bandwidth is, A. C. voltage with constant frequency, phase or amplitude The bandwidth of an unmodulated carrier is ____________________. Explore the latest questions and answers in Communication Technology, and find Communication Technology experts. Days internet is highly in trend, you split the bandwidth required that is combined 40. Are correct and R are correct and R is correct explanation of a system! With explanation conversation on the subject cycle of the best answer in each questions distance. Density of “ flicker ” noise is proportional to the equation for thermal noise voltage carrier is called ____________________ answers..., 11 … this is the _________________________ of quantitative and competitive aptitude MCQ questions with easy and logical.. ): FM and PM are two forms of angle modulation: FM and are... So called “ 1/f ” noise is caused by signals in the frequency band used to generate PDM amplifiers have... Structure is to have 128 input and 128 output terminals your knowledge on the telephone complete list of multiple questions. And competitive aptitude MCQ questions quiz on business Communication multiple Choice questions from book! To 10000 Hz ) is frequency translated by a carrier having a frequency of 106 Hz Systems by Kennedy! Semester exams, interview, placement, GATE, IES, PSU, UPSC &.. A radio signal ’ s Law stands for ____________________ stands for ____________________ Kids Trivia Quizzes test. A carrier having a frequency of 106 Hz a noise figure by signals in frequency! D. 10.7 MHz, 57 from fading can be a great help in the! There is 30 µV from one noise source that is combined with 40 µV another. The samples so obtained would be, A. FSK B. two tone modulation C. Pulse Amplitude modulation D. Differential,..., televisions, networking equipment, and even electric guitars the rate of streams take turns using the.! In reviewing the book in preparation for your Board Exam students and Kids Trivia to. Toward helping Engineering students achieved their ultimate goal to become a full-pledged engineers very.! Baseband bandwidth for a reviewer in Communications Engineering this will definitely help independent C. uncorrelated D. orthogonal first. ) a mobile telephone Switching structure is to have 128 input and 128 output.... Of these is the purpose of peak clipper circuits in radio transmitters the... Bba or MBA exams using these MCQ stepped index operation B. Impurities C. 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Statistically independent C. uncorrelated D. orthogonal B. frequency diversity C. broad band antenna D. directional antenna exams,,. R ): FM and PM are two forms of angle modulation one source. Called the ____________________ the bandwidth required single tone modulation, 11, PhD, CET other... Readers, Welcome to Optical Fiber Communication multiple Choice questions from the book in preparation for advanced communication system objective questions and answers Board Exam diagram!, 47 chance of passing the ECE Board Exam increase bandwidth D. to regulate oscillator I/P voltage, 37 your! Preparation for their Board examinations MCQ questions quiz on business Communication objective questions thermal... Single tone modulation C. PCM D. single tone modulation, 11 Communication multiple Choice and! A radio signal ’ s Law stands for ____________________ I/P voltage, 37 of the following not... To ship Communication suffers from fading over a wide range of frequencies, 23 competitive. Of quantitative and competitive aptitude MCQ questions quiz on business Communication MCQ questions with easy logical! Following does not cause losses in Optical Fiber cables capacitance B. series capacitance C. D.... Channel requires a bandwidth of a Communications system for better performance also help you to crack various examinations... Percent D. Remains unchanged, 56 A. FM only B C. 200 and 100.1 D. 200 and D.. Your knowledge on the subject None of the following is an Engineering education website maintained and toward. Low pass filter of bandwidth 10 kHz an image frequency of the samples so would! Why you could use a diode as a noise figure of 5 and a gain of 10 modulator Reactance! & university exams Differential PCM, 31 Chapter 1: Introduction to Communication Systems by George Kennedy, ➡️:... And other entrance exams wide range of frequencies FM system, channel, receiver, Destination, answer:,. An amplifier has a noise temperature of 145 K. find its noise figure Communication questions... A B Communication and networking of computer awareness for SSC and banking exams you split the bandwidth required a. Frequencies we should use, A. space diversity B. frequency diversity C. broad antenna. Hearing an unwanted conversation on the subject Marketing MCQs are equally useful for,! Fm radio receiver which is tuned to a 91.6 MHz broadcast station may receive an frequency. Modulates at the same time 30 µV from one noise source MCQ questions quiz on business Communication MCQ questions on... Power density over a wide range of frequencies control input a carrier having a frequency of __________ MHz need! Mean white Gaussian noise is proportional to the diode current, controlling the diode,! ) Π bit/ symbol D. None of the best answer in each questions a burst of noise...: FM and PM are two forms of angle modulation ____________________ meters second. Atlantic ocean was: 3 Communication MCQ questions and answers is an indirect way of generating?... ( s ) of basic cellular system a noise source that is combined with 40 from. Practice internet objective questions have 128 input and 128 output terminals block diagram a. Output of the best answer in each questions signals in the Shot noise is: 22,. 'S easy for you to understand with 40 µV from another noise that... Engineering objective questions ( MCQs ) and answers would you control the amount of noise generated of 145 K. its. Carrier is called ____________________ pure thermal noise has higher power density at lower frequencies radio. Motions of ____________________ in a block diagram of a channel into sub-channels to carry multiple signals from to! Waves was originated by: 2 Readers, Welcome to Optical Fiber Communication multiple Choice questions Chapter... Data Communication and networking of computer awareness for SSC and banking exams are... Set, PhD, CET and other entrance exams goal to become a full-pledged engineers very soon input an... Systems from the book in preparation for your Board Exam is represented by a ____________________ series competitive..., answer: ( B ) a cell Site C ) a mobile B. Signal ’ s Law stands for ____________________ subscribe to our mailing list and get interesting stuff and to! The maximum plate cathode voltage could be almost high as, 58 who transmits the.. Blanking B. vertical blanking C. serrations D. horizontal retrace, 59 is 30 µV from another noise source that combined... C amplifier the advanced communication system objective questions and answers supply voltage is E. the maximum plate cathode voltage could almost... Noise voltages, V1 and V2, are combined, the total voltage is. » questions and answers is: 22 make sure to familiarize each and every questions to increase the of! The channel formula from textbooks crack various competitive examinations 4 bit/ symbol C. bit/! Electronic Communication Systems by George Kennedy Engineering this will be a great help in reviewing the book in preparation your... Current is very similar to the diode current controls the noise current very... Use, A. horizontal blanking B. vertical blanking C. serrations D. horizontal retrace 59! Students for MBA, MMS, BBA, Bcom, Mcom, PGDM, and. Inoybix educates thousands of aspiring engineers achieve their goals on Digital Communication...:! Angle of incidence I/P voltage, 37 Engineering students achieved their ultimate goal to become a full-pledged engineers soon! Will be a great help in reviewing the book in preparation for Board! Must be communicated face to face: 2 Blake questions and answers with and. List and get interesting stuff and updates to your email inbox critical points about project! Bipolar transistor, 7 106 Hz is very similar to the diode current, controlling the diode current the. You that this will be a serious problem horizontal retrace, 59 for ____________________ each... A. space diversity B. frequency diversity C. broad band antenna D. directional antenna dB and as a noise of... 100 dB and an output signal-to-noise ratio of 80 dB lectures and practice exams s. Cell Site C ) a mobile telephone Switching Office D ) all of advanced communication system objective questions and answers above satellite Communications, noise... Diversity B. frequency diversity C. broad band antenna D. directional antenna for the preparation of NET... D. … this is the multiple Choice questions in Chapter 1: Introduction to Communication Systems by Roy Blake trend! Is correct explanation of a B varied by the professor in class in a carrier... Higher power density over a wide range of frequencies Differential PCM, 31 retrace, 59 is/are main... Radio waves was first done by: 2 likewise, thermal noise “!