8. The shift in “Q point” and amplification for less than 360⁰ of the input signal leads to amplitude distortion. Clarification: Distortion occurs when the modulating signal amplitude is greater than the amplitude of the carrier, causing incorrect information to be transmitted. Which phenomenon occurs due to an increase in the channel bandwidth during the transmission of narrow pulses in order to avoid any intervention of signal distortion? In amplitude modulation, it is particularly important that the peak value of the modulating signal be less than the peak value of the carrier. which will improve your skill. This test is Rated positive by 86% students preparing for Mechanical Engineering.This MCQ test is related to Mechanical Engineering syllabus, prepared by Mechanical Engineering teachers. (c) reading errors due to inclined observation are eliminated by removing parallax between the pointer and its image in the mirror (d) any of the above. Compression in time domain b. Amplitude Distortion: This type of distortion occurs due to attenuation in the peak value of the waveform. Feb 17,2021 - Amplitude Modulation | 10 Questions MCQ Test has questions of Electronics and Communication Engineering (ECE) preparation. Why is the PAM signal contaminated by noise? Amplitude distortion is distortion occurring in a system, subsystem, or device when the output amplitude is not a linear function of the input amplitude under specified conditions.. Generally, output is a linear function of input only for a fixed portion of the transfer characteristics. Due to the additive noise, the shape of the PAM signal will get modified. It is the signal distortion caused due to the overlapping of adjacent spectrums of a sampled signal if the sampling frequency is less than the Nyquist rate. Feb 18,2021 - Torsion - MCQ Test 1 | 20 Questions MCQ Test has questions of Mechanical Engineering preparation. To minimize the substantial distortion due to bit-shifting, Xuan et al. 3. In this page you can learn various important measuring instruments multiple choice questions answers,mcq on electrical measuring instruments with answers,mcq on instrumentation and measurement,sloved electrical measuring instruments objective questions answers, instrumentation multiple choice questions answers etc. C. Total amount of distortion D. Total amount of amplitude distortion Answer: A Clarification: THD (Total Harmonic Distortion) is a measurement of the harmonic distortion present in a signal. It occurs mainly due to incorrect biasing and clipping. MCQ Exam ON : Biosensors And Biochips Calculate the harmonic distortion component for an output signal having a fundamental amplitude of 3 V and a second harmonic amplitude of 0.25 V. 1) In this region, I c =βI b where Ic is collector current and Ib is base current, following linear relation y=mx. Amplitude Distortion due to Incorrect Biasing If the transistors biasing point is correct, the output waveform should have the same shape as that of the input waveform only bigger, (amplified). In amplitude modulation, it is particularly important that the peak value of the modulating signal be less than the peak value of the carrier. It is the ratio of sum of power of all harmonic components to the power of the fundamental frequency of the signal. Answer: (c) reading errors due to inclined observation are eliminated by removing parallax between the pointer and its image in the mirror. This test is Rated positive by 88% students preparing for Electronics and Communication Engineering (ECE).This MCQ test is related to Electronics and Communication Engineering (ECE) syllabus, prepared by Electronics and Communication Engineering … a. Expansion in time domain c. Compression in frequency domain d. Expansion in frequency domain View Answer / Hide Answer Explanation: Distortion occurs when the modulating signal amplitude is greater than the amplitude of the carrier, causing incorrect information to be transmitted. Ans. Q.28.
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