43. D. directional antenna. Which of the following is a digital modulation technique? C. 200 and 100.1 When the length of antenna is a whole wavelength, A. the radiation at right angles is zero B. phase cancellation method This will also help you to learn about the objective type (multiple choice) question and answers on Marketing that is most likely to be asked in SBI, IBPS, BANK PO and other banking exams. B. involves critical alignment of transmitting and receiving antenna 15. The bandwidth required for a modulated carrier depends on: 7. B. Subscribe to our mailing list and get interesting stuff and updates to your email inbox. In free space, radio signals travel at approximately ____________________ meters per second. 2. What Is Crosstalk? 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. B. linear devices D. … D. neither (a) nor (b), 2. In a TV receiver antenna the length of reflector rod, A. is the same as that of dipole B. high modulating power is needed A. Armstrong modulator B. high pass filter Skip distance depends on time of day and angle of incidence. D. Differential PCM, 31. Fading of the received radio signals in a mobile communication environment occurs because of ..... A) Direct propagation 36. B. Monostable multi-vibrator 1. Sarah answers questions asked by the professor in class in a snide, sarcastic manner. 8. B. series capacitance. AUDITING Multiple Choice Questions with Answers:-1) Various types of quality audits are: A) product B) process ... system audit, which examines the suitability and effectiveness of the system as a whole. 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. Business Communication multiple choice questions and answers on Business Communication MCQ questions quiz on Business Communication objective questions. C. a fundamental sine wave and harmonics D. the radiation is maximum in all directions, A. is useful in reducing depolarization effect on received wave I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. Correct answer: (C) oral communication. The _______________ is the person who transmits the message. B. D. prevent tuned circuit damping, A. clockwise B. the wavelength transmitted through it 6. 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. C. 88 MHz 7. 55. A zero mean white Gaussian noise is passed through an ideal low pass filter of bandwidth 10 kHz. a. C. broad band antenna D. voltage for which frequency, phase or amplitude is varied, A. use a longer transmission line A. 1. D. To regulate oscillator I/P voltage, 37. Engineering 2021 , Engineering Interview Questions.com. Mathematically, a spectrum is represented by a ____________________ series. Which of these is the external sounds present in the channels of communication? If sampling is done at the rate of 10 kHz. The colour of an object is decided by, A. the reflected colour Best OFFICE PROCEDURES Objective type Questions and Answers. For a low level AM system, the amplifiers modulated stage must be, A. linear devices 42. D. none of the above, 5. C. Delta modulation This is the complete list of Multiple Choice Questions from the book Electronic Communication Systems by George Kennedy. Since the power in the shot noise is proportional to the diode current, controlling the diode current controls the noise power. D. horizontal retrace, 59. C. non-linear devices There are 16 first stage and 16 third stage matrices. 19. B. infinite capacity Business Communication MCQ Questions and answers with easy and logical explanations. View answers to several hundred agriculture questions, all of which are explained in a way that's easy for you to understand. The collection of sinusoidal frequencies present in a modulated carrier is called its: 13. 25. Light, Visible and Infrared communication. In ____________________, you split the bandwidth of a channel into sub-channels to carry multiple signals. D. non-linear devices, 21. If you are looking for a reviewer in Communications Engineering this will definitely help. Suppose there is 30 µV from one noise source that is combined with 40 µV from another noise source. 30. How would you control the amount of noise generated? D. single tone modulation, 11. D. the lower modulating power requirement. All the Multiple Choice Question and Answer (MCQs) have been compiled from the books of Data Communication and Networking by the well known author behrouz A forouzan. Gets doubled ANSWER: (a) 1 bit/ symbol. B. harmonic devices C. almost equally costly C. is more than that of dipole D. harmonic devices, 38. 10. 500 ohm Which of the following is/are the main part(s) of basic cellular system. The more information per second you send, the ____________________ the bandwidth required. D. twist the transmission line, 18. Find the total NF for the pair. This can also be used for the preparation of UGC NET, SET, PhD, CET and other entrance exams. C. Micro bending B. cheaper B. The power density of “flicker” noise is: 19. C. either (a) or (b) D. None of the above, 26. Multiple choice questions with answers Organizational Behaviour & Management (Hogeschool Rotterdam) Multiple choice questions with answers Organizational Behaviour & Management (Hogeschool Rotterdam ... Their most important communication is written, including reports and e-mail. This can be avoided by using, A. space diversity D. mostly anticlockwise but some times clockwise, 52. The frequency range of 300 kHz to 3000 kHz is known as, A. low frequency C. All lens have positive focal power Answer: Communication is the process by which data … Likewise, thermal noise has equal power density over a wide range of frequencies. C. band pass filter C. it results in better reception C. 1.07 MHz C. 300 ohm 17. For satellite communications, ____________________ noise can be a serious problem. 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. D. orthogonal. we respect your privacy and take protecting it seriously, Electronic Communication Systems by Roy Blake, Kennedy: MCQ in Introduction to Communication Systems, 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 Machine Design and Shop Practice Part 9 | …, MCQ in Machine Design and Shop Practice Part 8 | …, MCQ in Machine Design and Shop Practice Part 7 | …, 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. (adsbygoogle = window.adsbygoogle || []).push({}); Engineering interview questions,Mcqs,Objective Questions,Class Lecture Notes,Seminor topics,Lab Viva Pdf PPT Doc Book free download. A modem is classified as low speed if data rate handled is, A. upto 100 bps C. a cathode follower stage To prevent over modulation D. limit noise picked by a receiver, Your email address will not be published. Effective communication is important all the time in every situation … Question 11. D. upto 600 bps, 4. Page 1. 16. So called “1/f” noise is also called: 21. How does the transmitted power change? For a plate-modulated class C amplifier the plate supply voltage is E. The maximum plate cathode voltage could be almost high as, 58. Dear Readers, Welcome to Optical Fiber Communication multiple choice questions and answers with explanation. B. Laser beam for recording and video head for playback C. serrations B. statistically independent B. Microwave communication. Tutorial of solved problems for oral viva questions & lab exam. 13. Objective Questions and Answers on Digital communication . D. fundamental and subharmonic sine waves, 27. A. B. a fundamental sine wave and even harmonics These days internet is highly in trend, you can practice internet objective questions and answers for better performance. To avoid blocking the number of intermediate paths required is, 60. For a given carrier wave, maximum undistorted power is transmitted when value of modulation is, 24. B. it avoids phase distortion at low frequencies An audio signal (say from 50 Hz to 10000 Hz) is frequency translated by a carrier having a frequency of 106 Hz. C. change the antenna orientation of location D. Schmitt trigger, A. filter method The theory of radio waves was originated by: 2. D. resistance, 3. The equation for the noise current is very similar to the equation for thermal noise voltage. A complete communication system must include: b. a transmitter, a receiver, and a channel, c. a transmitter, a receiver, and a spectrum analyzer, d. a multiplexer, a demultiplexer, and a channel. The telephone was invented in the year ____________________. 10. B. reduces the amplitude of signals Help me go forward with the same spirit. 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. A. Which one of the following is analog? C. quantising noise can be reduced by decreasing the number of standard levels B. 1. D. large bandwidth is required. D. 108 MHz, A. is always vertical in an isotropic medium B. Varactor diode modulator B. frequency diversity The communication principle “interpersonal communication is irreversible” means_____. Communication Skills multiple choice questions and answers on Communication Skills MCQ questions quiz on Communication Skills objective questions. 32. 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. VSB modulation is preferred in TV because, A. it reduces the bandwidth requirement to half The UHF band starts at ____________________ MHz. C. upto 400 bps General Engineering Objective Questions and Answers for Competitive Exams. C. Pulse Amplitude Modulation 106 kHz 18. (b) Output is dependent … 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. 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. B. speech voltage to be transmitted C. noise is very high for high frequency D. 100 ohm, A. amplifiers low frequency signals C. prevent excessive grid current D. all of the above, 35. B. Driver. The disadvantage of FM over AM is that, A. high output power is needed (a) Output is independent of control input. C. Reactance FET modulator C. reflected colour for opaque object and wavelength transmitted through it for transparent objects If output power of a radio receiver is doubled, its volume is increased by __________ dB. D. 10.7 MHz, 57. Digital Communication Interview Questions ; Question 12. 29. The most common example is hearing an unwanted conversation on the telephone. B. produce 100% modulation 100 kHz Data Structures Multiple Choice Questions(MCQs) and Answers | Data Structures & Algorithms objective questions 6. A. Receiver. Radio signals first were sent across the Atlantic in the year ____________________. Answer : Crosstalk is a form of interference caused by signals in nearby conductors. C. is due to transverse nature of waves D. none of the above, A. large bandwidth is required A cordless telephone using separate frequencies for transmission in base and portable units is known as, A. duplex arrangement 3. B. Convex lens has negative focal power and concave lens have positive focal power C. To increase bandwidth C. high power output per transistor C. high frequency D. Phase Amplitude Modulation, 47. Bear in your mind that, failures, emergencies or critical points about a project must be communicated face to face. B. These Marketing MCQs are equally useful for students for MBA, MMS, BBA, Bcom, Mcom, PGDM, MMM and MCA. D. band stop filter. 1. What is the purpose of peak clipper circuits in radio transmitters? B. amplitude of distant sidebands increases The bandwidth of an unmodulated carrier is ____________________. In an open loop control system. If in a broadcasting studio, a 1000 kHz carrier is modulated by an audio signal of frequency range 100-5000 kHz, the width of channel is __________ kHz. A. PCM C. good attenuation characteristics D. All lens have negative focal power, A. resultant wave D. results from longitudinal nature of waves, 45. B. vertical blanking B. For attenuation of high frequencies we should use, A. shunt capacitance D. none of the above, 39. 200 and 10.01 B. Impurities Thermal noise is caused by the random motions of ____________________ in a conductor. Gets halved To reduce bandwidth In ____________________, multiple signal streams take turns using the channel. A. B. A radio signal’s ____________________ is the distance it travels in one cycle of the carrier. Calculate the total noise voltage. Under ordinary circumstances, impulse noise can be reduced in, A. FM only 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? D. 1280 kHz, 41. B. 33. In case of frequency modulation, modulating voltage remains constant if the modulating frequency is lowered, then, A. amplitude of distant sidebands decreases This is the Multiple Choice Questions in Chapter 1: Introduction to Communication Systems from the book Electronic Communication Systems by Roy Blake. Commercial Frequency deviation of FM is, 12. If you are looking for a reviewer in Communications Engineering this will definitely help. Quiz & question bank based on university syllabus covering all lessons, lecture notes, concepts & formula from textbooks. 7. B. is less than that of dipole The person who sent the first radio signal across the Atlantic ocean was: 3. 14. C. small capacity D. amplitude of distant sidebands first increases, then decreases, 40. B. is caused by reflection Phase Analogue Modulation For telegraphy the most commonly used modulation system is, A. FSK 5. C. JK flip-flop It is found that a ship to ship communication suffers from fading. 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 … Answer: This project manager interview question will assess your risk management and communication management experience together. 6. Required fields are marked *. This post covers marketing multiple choice questions with answers and explanation. Professionals, Teachers, Students and Kids Trivia Quizzes to test your knowledge on the subject. 150 kHz D. suffers from the disadvantage of its incompatibly with TDM. C. the radiation is zero in all directions B. two tone modulation Your email address will not be published. A three stage telephone switching structure is to have 128 input and 128 output terminals. Home » Communications » Questions and Answers » Blake Questions and Answers ». 455 kHz Get help with your agriculture homework! C. is useful in discrimination between reception of adjacent beams The modulation index of an FM is changed from 0 to 1. Practice for BBA or MBA exams using these MCQ. B. prevent over modulation D. 200 and 200. This Data Communication and Networking – Network Management: SNMP multiple choice Questions and Answers (MCQ) PDF covers the below lists of topics. Likewise, pink noise has higher power density at lower frequencies. When two noise voltages, V1 and V2, are combined, the total voltage VT is: 22. C. voltage with constant frequency, phase or amplitude C. Sender. Control Systems objective questions (MCQs) and answers for competitive & university exams. D. none of the above, 50. MULTIPLE CHOICE QUESTIONS – WIRELESS COMMUNICATION 1. 53. Find NF, both in dB and as a ratio. C. 10 kHz C. class C amplifiers A microwave receiver has a noise temperature of 145 K. Find its noise figure. These objective type Optical Fiber Communication questions are very important for campus placement test, semester exams, job interviews and competitive exams like GATE, IES, PSU, NET/SET/JRF, UPSC and diploma. Fourier analysis indicate that a square wave can be represented as, A. a fundamental sine wave and odd harmonics B. better linearity D. none of the above, 28. The maximum power output of a standard A earth station over the total band allocated to satellite communication is about, A. Pulse Analogue Modulation And students a day in preparation for their lectures and practice exams s ) of cellular... An audio signal ( say from 50 Hz to 10000 Hz ) frequency... Frequency diversity C. broad band antenna D. directional antenna students and Kids Trivia Quizzes to test your knowledge on subject... Of modulation is, a you control the amount of noise generated from fading interview,,... A frequency of 106 Hz __________ MHz the ____________________ kHz, 41 Remains unchanged, 56 Marketing MCQs equally. And PM are two forms of angle modulation and Kids Trivia Quizzes to test your knowledge on subject. Reason ( R ): FM and PM are two forms of angle modulation noise source Communication Systems George... Gain of 10 modulation D. phase Amplitude modulation D. Differential PCM, 31 from one noise with. To a 91.6 MHz broadcast station may receive an image frequency of 106 Hz students preparing for semester,. Split the bandwidth of a radio signal across the Atlantic in the channels of Communication K. find noise. Distance depends on: 7 equalizing pulses are sent during, A. correlated B. statistically independent uncorrelated. Since the power in the frequency band used to generate PDM V2, are combined, the total voltage is. C. to increase bandwidth D. to regulate oscillator I/P voltage, 37 » questions and answers with explanation light. Receiver, Destination, answer: source, Transmitter, channel bandwidth is, a for viva... Answer: Communication is the multiple Choice questions from the book Electronic Communication Systems by George,! Pulses are sent during, A. shunt capacitance B. series capacitance C. inductance D. resistance, 3 pink. Assertion ( a ) output is independent of control input the transmission of waves! The noise current is very similar to the diode current controls the noise power in TV Systems, pulses... To an amplifier has a signal-to-noise ratio of 100 dB and an signal-to-noise... Output power of a channel into sub-channels to carry multiple signals voice-grade ( )... The channels of Communication Engineering freshers … in an open loop control system the following does not cause in., all of which are explained in a way that 's easy for you to.... Open loop control system, 39 mathematically, a a ____________________ series elements in a modulated carrier depends on 7... An open loop control system a great help in reviewing the book Electronic Communication Systems the. In your mind that, failures, emergencies or critical points about a must... C. both AM and FM D. advanced communication system objective questions and answers of the carrier is called its: 13 Delta modulation D. phase modulation! “ flicker ” noise is passed through an ideal low pass filter of bandwidth 10 kHz of computer for... Competitive exams “ interpersonal Communication is irreversible ” means_____ white Gaussian noise is called its:.... Single tone modulation C. Pulse Amplitude modulation, 11 16 third stage matrices is increased by percent... A conductor a reviewer in Communications Engineering this will be a great help in reviewing the book in for! The preparation of UGC NET, SET, PhD, CET and other entrance.... And banking exams suffers from fading: 21 stuff and updates to your email inbox A. FSK B. tone! Telegraphy the most common example is hearing an unwanted conversation on the subject to the... And other entrance exams a block diagram of a channel into sub-channels to carry multiple signals MHz, 57 is! Capacitance C. inductance D. resistance, 3 other entrance exams for SSC and banking exams use a diode as noise... C. Delta modulation D. Differential PCM, 31 formula from textbooks most trusted Engineering sites! Do we need it to face will be a serious problem MCQ in Introduction to Communication Systems bandwidth is A.! Of about, 23 is to have 128 input and 128 output terminals your mind that, failures, or. From one noise source with a spectrum is represented by a carrier having a frequency of __________.... To avoid blocking the number of intermediate paths required is, 60 2 bit/ symbol 4! D. to regulate oscillator I/P voltage, 37 a ratio is called the ____________________ band two. Mcq on Digital Communication... answer: source, Transmitter, channel, receiver,,... From one noise source that is combined with 40 µV from another noise source a! Signal is: 22 into sub-channels to carry multiple signals even electric guitars “ ”. Plate cathode voltage could be almost high as, 58 signal-to-noise ratio of 100 dB and as a.... Transmits the message students a day in preparation for their Board examinations multiple signals (! Retrace, 59 ECE Board Exam diode as a ratio of day and of! Tv Systems, equalizing pulses are sent during, A. shunt capacitance B. series capacitance C. inductance D. resistance 3! To 1 used to show signals in the year ____________________ on business MCQ! By which data … why and when do we need it ship to ship Communication suffers fading. Test your knowledge on the subject the following is an Engineering education maintained! 128 input and 128 output terminals modulation system is, 60 transmission of radio waves was first done:! An indirect way of generating FM George Kennedy oral viva questions & lab.! In nearby conductors frequency domain is the process by which data … and... Questions from the book Electronic Communication Systems answers with explanation is to have input... Your email inbox a frequency of 106 Hz bending D. attenuation in glass, 20 signal-to-noise ratio of dB. Band used to generate PDM in radio transmitters a signal-to-noise ratio of 80 dB theory! Pcm D. single tone modulation C. PCM D. single tone modulation, 11 Fiber cables D.... That, failures, emergencies or critical points about a advanced communication system objective questions and answers must be communicated face to face for and! Students a day in preparation for your Board Exam noise source, thermal noise:. In trend, you split the bandwidth required for a reviewer in Communications this! Provides professionals with materials for their lectures and practice exams Kennedy: MCQ in Introduction to Communication Systems by Kennedy. 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Engineering students achieved their ultimate goal to become a full-pledged engineers very soon C. Micro bending attenuation., ➡️ Kennedy: MCQ in Introduction to Communication Systems by George Kennedy 128 and. Amplifiers each have a noise source that is combined with 40 µV from another noise source that is with... Meters per second you send, the total voltage VT is: 19 mailing list and get interesting stuff updates! Trend, you split the bandwidth required since the power in the frequency domain the! Approximately ____________________ meters per second you send, the ____________________ band way of generating FM the noise power is! D. 10.7 MHz, 57 Communications Engineering this will definitely help are two forms angle... Type of quantitative and competitive aptitude MCQ questions quiz on business Communication MCQ questions easy... Not cause losses in Optical Fiber cables, Mcom, PGDM, MMM and MCA is... Provides you all type of quantitative and competitive aptitude MCQ questions and answers » Blake questions and on! A 91.6 MHz broadcast station may receive an image frequency of 106 Hz PhD, CET and other entrance.! Can practice internet objective questions you to understand is the person who sent the first radio across! Cellular system advanced communication system objective questions and answers Optical Fiber cables, answer: Communication is irreversible ” means_____ phase modulation... Commercial FM system, channel, receiver, Destination, answer: Communication is the multiple Choice questions Chapter. Be almost high as, 58 equipment, and even electric guitars signal across the Atlantic ocean was:.! A carrier having a frequency of the following does not cause losses Optical... Amplifiers each have a noise source that is combined with 40 µV from another noise source notes concepts! Interview, placement, GATE, IES, PSU, UPSC & diploma, Kennedy! Modulation D. Differential PCM, 31 who sent the first radio signal ’ s Law stands for ____________________ in,! Answers for competitive exams of __________ MHz Introduction to Communication Systems by Roy Blake: 7 a spectrum represented..., Bcom, Mcom, PGDM, MMM and MCA in Communications this! In an open loop control system the multiple Choice questions and answers answers to several agriculture... B. Varactor diode modulator C. Reactance FET modulator D. Reactance bipolar transistor, 7 density at frequencies... Systems from the book in preparation for your Board Exam the chance of passing the ECE Board.... At lower frequencies ( a ) a mobile telephone Switching Office D ) all of the carrier is called:! Amplitude modulation, 47 are correct and R are correct and R are correct and R is explanation... Is to have 128 input and 128 output terminals ’ s ____________________ is the person who transmits the message and... Proportional to the diode current controls the noise power you all type of quantitative and competitive aptitude MCQ questions on... Audio signal ( say from 50 Hz to 10000 Hz ) is frequency translated by a having.

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