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Mcqs

Analog Communication Mcqs

Our 1000+ Analog Communications MCQs (Multiple Choice Questions and Answers) focus on all areas of Analog Communications covering 100+ topics. These topics are chosen from a collection of the most authoritative and best reference books on Analog Communications. One should spend 1 hour daily practicing these MCQs for 2-3 months to learn and assimilate Analog Communications subject comprehensively. This way of systematic learning will prepare anyone easily for Analog Communications exams, contests, online tests, quizzes, MCQ-tests, viva-voce, interviews, and certifications.

 

Analog Communications Multiple Choice Questions Highlights

  • 1000+ Multiple Choice Questions & Answers (MCQs) in Analog Communications with a detailed explanation of every question.
  • These MCQs cover theoretical concepts, true-false(T/F) statements, fill-in-the-blanks and match the following style statements.
  • These MCQs also cover numerical as well as diagram-oriented MCQs.
  • These MCQs are organized chapterwise and each Chapter is further organized topicwise.
  • Every MCQ set focuses on a specific topic of a given Chapter in Analog Communications Subject.

 

Who should Practice Analog Communications MCQs?

  • Students who are preparing for college tests and exams such as mid-term tests and semester tests on Analog Communications.
  • Students who are preparing for Online/Offline Tests/Contests in Analog Communications.
  • Students who wish to sharpen their knowledge of Analog Communications Subject.
  • Anyone preparing for Aptitude test in Analog Communications.
  • Anyone preparing for interviews (campus/off-campus interviews, walk-in interviews, and company interviews).
  • Anyone preparing for entrance examinations and other competitive examinations.
  • All - Experienced, Freshers and College / School Students.
Latest Popular
Q:

In PCM system, output S/N increases ________

A) parabolically with bandwidth B) exponentially with bandwidth
C) inversely with bandwidth D) linearly with bandwidth
 
Answer & Explanation Answer: B) exponentially with bandwidth

Explanation: Pulse code modulation (PCM) is a digital form of communication. Pulse Code Modulation is a technique in which the amplitude of an analogue signal is converted to a binary value represented as a series of pulses. if we calculate the ratio of signal to noise ratio for different bandwidth then we observe that it increases exponentially with it.

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Category: Electronics & Electrical MCQs
Sub Category: Analog Communication Mcqs

877
Q:

Scattering causes _________

A) refraction B) loss
C) dispersion D) reflection
 
Answer & Explanation Answer: B) loss

Explanation: In scattering, particles are forced to deviate from a straight trajectory due to non-uniformities in the medium. Thus, it causes loss of data.

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Category: Electronics & Electrical MCQs
Sub Category: Analog Communication Mcqs

750
Q:

Amplitude Modulation suffers from ________

A) Side-band Suppression B) IntraPulse Modulation
C) Cross Modulation D) Carrier Suppression
 
Answer & Explanation Answer: C) Cross Modulation

Explanation: Cross modulation generally occurs in receivers receiving an AM signal in the presence of other strong AM signal. The modulation from the strong signal cross modulates and appears on the weaker signal being received.

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Category: Electronics & Electrical MCQs
Sub Category: Analog Communication Mcqs

730
Q:

Square Law modulators ________

A) used for amplitude modulation B) have non linear current-voltage characteristics
C) have non linear current-voltage characteristics as well as used for Amplitude Modulation D) used for frequency modulation
 
Answer & Explanation Answer: C) have non linear current-voltage characteristics as well as used for Amplitude Modulation

Explanation: Square law modulators are used for amplitude modulation and have non-linear current-voltage characteristics. The output of Square law demodulator is said to vary with respect to square of the input. They are highly linear in low voltage region.

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Category: Electronics & Electrical MCQs
Sub Category: Analog Communication Mcqs

703
Q:

A frequency synthesizer is _________

A) A VCO phase locked to a reference frequency B) A VFO phase locked to a reference frequency
C) A fixed RF generator D) A variable RF generator
 
Answer & Explanation Answer: A) A VCO phase locked to a reference frequency

Explanation: Frequency synthesizer generates a range of frequencies from a single reference frequency.

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Category: Electronics & Electrical MCQs
Sub Category: Analog Communication Mcqs

683
Q:

Telephones send information through wires in form of ________

A) radio signals B) electrical signal
C) electromagnetic waves D) microwaves
 
Answer & Explanation Answer: B) electrical signal

Explanation: A telephone converts sound waves into electrical signals which are suitable for transmission over long distances, where it is converted to sound waves again, through a transducer. The essential components of a telephone are a microphone which acts as a transmitter and an earphone which acts as a receiver.

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Category: Electronics & Electrical MCQs
Sub Category: Analog Communication Mcqs

551
Q:

The carrier is suppressed in ________

A) a mixer B) a frequency multiplier
C) a transducer D) a balance modulator
 
Answer & Explanation Answer: D) a balance modulator

Explanation: A mixer is the one which mixes the audio frequency with the carrier frequency. A transducer converts a signal from one form to another. Balance modulator suppresses the carrier and leaves only the sidebands.

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Category: Electronics & Electrical MCQs
Sub Category: Analog Communication Mcqs

512
Q:

In a balanced mixer, the output _________

A) contains equal amount of all input frequencies B) does not contain the input frequencies
C) contains the input frequencies D) is a non-linear mixture of input signals
 
Answer & Explanation Answer: B) does not contain the input frequencies

Explanation: Mixer is a device that multiples two signals. In a balanced mixer, the output does not contain the input frequencies. And if it contains the frequency then mixer becomes imbalanced.

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Category: Electronics & Electrical MCQs
Sub Category: Analog Communication Mcqs

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