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A control system in which the control action is somehow dependent on the output is known as (a) Closed loop system (b) Semiclosed loop system (c) Open system (d) None of the above Ans: a. 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 … Which of the following stores all the user-related data that is relevant for the … • a multiple choice question (MCQ) examination to test medical knowledge in a one three and a half hour session containing 150 questions. This paper. 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(A) Transmitter (B) Transmission channel (C) Noise (D) Receiver, (13) Device which transform one form of energy in to another form of energy is called a(A) Transducer (B) Transformer (C) Transponder (D) Transistor, (14) is a link between the transmitter and receiver(A) Microphone (B) Transmission Channel (C) transducer (D) telephone, (15) in the receiver section are used to reduce the level of noise signal(A) filter circuit (B) Modulator (C) de modulator (D) Amplifier, (16) The minimum distance a up to which T.V transmission from a T.V. Computer science (abbreviated CS or CompSci) is the scientific and practical approach to computation and its applications. [A] Agreements on how communication components and DTE's are to communicate A) Network B) Application . There are two types of signals. Objective Study Guide Series for Engineering Entrances is designed in sync with NCERT 11th and 12th Syllabus, to provide a clear understanding of concepts and their application. (A) Amplitude (B) Frequency (C) Phase (D) intensity, (10) Though which mode of communication can radio waves be sent from one Plate to another? These Multiple Choice Questions (MCQs) on Wireless communication help you evaluate your knowledge and skills yourself with this CareerRide Quiz. C) Data link D) Session . ... Business Communication Solved MCQs Solved Papers Item Preview remove-circle ... Uploaded by Free PDF Books Lib on April 18, 2017. Learn Communication Systems MCQ questions & answers are available for a Electrical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. (A) Half duplex (B) Simplex (C) Double Duplex (D) Full duplex, (2) To transmit 1KhZ frequency signal, wave length of the signal should be m.(A) 3×103 (B) 3×105 (C) 3×107 (D) 3×1010, (3) What should be the minimum length of the antenna capable of emitting audio signal of wave length l ? 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(2) The waves returned to the earth after getting reflected by the ionosphere at a height of about 60-400 km is known as sky waves. If you are looking for a reviewer in Communications Engineering this will definitely help. (A) vertically upward (B) horizontal(C) tangential direction to the surface of the earth (D) in all four. The_____is the component of communication through which information is transferred. The immune system is our shield against diseases and various infectious organisms that try to invade our body. The frequencies up to 2 MHz is propagating through ground waves. (A) ground waves (B) sky waves (C) surface waves (D) space waves, (A) doubled (B) halved (C) quadrupled (D) kept unchanged, (A) X-rays (B) r-rays (C) sound wave (D) microwaves, (A) 30 Hz (B) 300 Hz (C) 3000 Hz (D) 3 MHz, (A) 88 to 108 MHz (B)88 to 108 KHz (C) 8 to 88 MHz (D) 88 to 108 GHz, (A) transmission (B) reception (C) modulation (D) detection, (A) ground wave propagation (B) sky wave propagation, (C) space wave propagation (D) all of them, (A) 400m - 250m (B) 40m - 25m (C) 4m - 2.5m (D) None of these, (A) increase as we go from the lower to upper layer of the ionosphere, (B) decrease as we go from the lower to upper layer of the ionosphere, (C) remain the same through out the ionosphere, (C) both ground wave and sky wave propagation, (D) neither ground wave nor sky wave propagation, (A) 1600 m (B) 800 m (C) 1800 m (D) 600 m, (A) 2 MHz (B) 10 MHz (C) 12 MHz (D) 18 MHz, (C) Both guided and unguided media (D) Neither guided nor unguided media, (A) 20 dB (B) 2 dB (C) 0.2 dB (D) 0.02 dB, (A) uplink, down link (B) down link, up link, (C) modulation, demodulation (D) demodulation, modulation, (A) Both assertion and reason are true and the reason is correct enplanation of assertion. 1. Which of the following is/are the main part(s) of basic cellular system. • Noise : Noise is an unwanted signal. • Signal : For a transmission, the information is transformed into electric signal is called a signal. The idea behind the … communication systems: amplitude and angle modulation and demodulation systems, spectral analysis of these operations, superhet erodyne receivers; elements of hardware, realizations of analog communication systems; signal-to-noise ratio (SNR) calculations for amplitude modulation (AM) and frequency modulation (FM) for low noise conditions. Home >> Category >> Electronic Engineering (MCQ) questions & answers Dear Readers, Welcome to Optical Fiber Communication multiple choice questions and answers with explanation. Practice these MCQ questions and answers for preparation of various competitive and entrance exams. The resultant wave is known as modulated wave. Communication Skills MCQ question is important for exams like Banking exams, IBPS, SCC, CAT, XAT, MAT etc. • Modulation : The process of superposing low frequency audio signals on high frequency is called modulation. Which of the following is/are the main part(s) of basic cellular system. It's a host defense system which is built of many biological structures. The modulation index is(A) 100% (B) 75% (C) 50% (D) 25%, (23) AM is used for broadcasting because(A) it is more noise innumerable than other modulation system(B) it requires less transmitting power compared with other system(C) it's are avoids receiver complexity....(D) No other modulation system can provide the necessary band width faithful transmission, Read the latest news and announcements from NCERT and CBSE below. … I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. 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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.• The owner of a communication satellite is usually required to keep the spacecraft on station at its assigned place in the geosynchronous orbit with an accuracy of _____ degree. (6) ground waves are polarised at direction. Sanfoundry Global Education & Learning Series – Digital Communications. Download Operating System MCQ Question Answer PDF By using our site, you agree to our collection of information through the use of cookies. Download DC Unit – 1 These books and notes are available for free download. A) MAN B) LAN C) WAN D) none at the above Ans: B Q. 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