Current Affairs Quiz 2024GKCourses AptitudeADRE 2.0EnglishUGC NET

Digital Modulation Techniques Quiz | Digital Modulation Techniques MCQs and Answers for competitive exams

Download PDF

Free download in PDF Digital Modulation Techniques MCQs and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
Go To Download Page
81 The process of converting the analog sample into discrete form is called
[A] Quantization
[B] Sampling
[C] Multiplexing
[D] Modulation
Answer: Quantization
82 The characteristics of compressor in μ-law companding are
[A] Continuous in nature
[B] Logarithmic in nature
[C] Linear in nature
[D] Discrete in nature
Answer: Continuous in nature

DOWNLOAD CURRENT AFFAIRS PDF FROM APP

Article and Schedule Quiz Start Test!
83 The modulation techniques used to convert analog signal into digital signal are
[A] Pulse code modulation
[B] Adaptive delta modulation
[C] Delta modulation
[D] All of the above
Answer: All of the above
84 The sequence of operations in which PCM is done is
[A] Sampling, quantizing, encoding
[B] Quantizing, encoding, sampling
[C] Quantizing, sampling, encoding
[D] None of the above
Answer: Sampling, quantizing, encoding
85 QAM uses ______ as the dimensions.
[A] In phase & Quadrature
[B] Quadrature
[C] In phase
[D] None of the mentioned
Answer: In phase & Quadrature
86 Which has same probability of error?
[A] BPSK and QPSK
[B] BPSK and ASK
[C] BPSK and PAM
[D] BPSK and QAM
Answer: BPSK and PAM
87 Which system uses QAM?
[A] Dial up modem
[B] Digital microwave relay
[C] Peak value/ rms value
[D] None of the mentioned
Answer: Digital microwave relay & Dial up modem
88 Average energy per bit is given by
[A] average energy symbol/log2 M
[B] log2 M/ Average energy symbol
[C] average energy symbol * log2 M
[D] none of the mentioned
Answer: average energy symbol/log2 M
89 Which FSK has no phase discontinuity?
[A] Uniform FSK
[B] Discrete FSK
[C] Continuous FSK
[D] None of the mentioned
Answer: Continuous FSK
90 FSK reception is
[A] Phase Coherent & non coherent
[B] Phase non coherent
[C] Phase Coherent
[D] None of the mentioned
Answer: Phase Coherent & non coherent
91 Every frequency has ____ orthogonal functions.
[A] One
[B] Two
[C] Four
[D] Six
Answer: Two
92 Equalization in digital communication
[A] Is done using linear filters
[B] Removes distortion caused due to channel
[C] Reduces inter symbol interference
[D] All of the above
Answer: All of the above

Take Mock Tests

Missiles Mock Test Start Test!
SSC MTS Mock Test Start Test
IBPS CLERK MOCK TEST Start Test
SSC MTS 2022 JULY 26 Shift 1 (ENGLISH) Start Test!
SSC GD Previous Year Paper 2021 Nov 17 Shift - I (Hindi) Start Test!
SSC CGL Tier - 1 PYP 2022 April 21 Shift- 1 (ENGLISH) Start Test!
MPSC PAPER I MOCK TEST 1 (ENGLISH) Start Test!
IB Security Assistant Mock test 1 (english) Start Test!
UP POLICE CONSTABLE MOCK TEST 1 Start Test!
DELHI POLICE CONSTABLE MOCK TEST 1 (HINDI) Start Test!
LEAVE A COMMENT