Amplitude and Frequency Modulation MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Amplitude and Frequency Modulation, a fundamental topic in the field of Avionics Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Amplitude and Frequency Modulation MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Amplitude and Frequency Modulation mcq questions that explore various aspects of Amplitude and Frequency Modulation problems. Each MCQ is crafted to challenge your understanding of Amplitude and Frequency Modulation principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Avionics Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Amplitude and Frequency Modulation MCQs are your pathway to success in mastering this essential Avionics Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Amplitude and Frequency Modulation. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Amplitude and Frequency Modulation knowledge to the test? Let's get started with our carefully curated MCQs!

Amplitude and Frequency Modulation MCQs | Page 7 of 7

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Q61.
What is the noise to signal ratio if the phase shift introduced by noise is 0.75°?
Discuss
Answer: (b).0.966
Q62.
What is the frequency deviation produced by noise if the modulating frequency is 400 Hz and the phase difference introduced by noise is 0.43 rad?
Discuss
Answer: (c).172 Hz
Q63.
Calculate the phase difference by noise if the Signal to noise ratio is 7:2.
Discuss
Answer: (a).15.366°
Q64.
What is the ratio of the shift produced by the noise to the maximum allowed deviation if the modulating frequency is 300 Hz and the phase shift by noise is 25° and the maximum allowable deviation is 5 kHz?
Discuss
Answer: (d).0.0261
Q65.
What is the signal to noise ratio if the maximum allowable frequency deviation is 4 kHz and the frequency deviation by noise is 156.42 Hz?
Discuss
Answer: (c).25.75
Q66.
What is the technique in which the high frequency components are amplified more than the low frequency components in FM?
Discuss
Answer: (b).Preemphasis
Q67.
Which of the following pairs of resistors and capacitors can be used in high pass filters for preemphasis circuits?
Discuss
Answer: (b).100 Ω and 0.75 μF
Q68.
Find the frequency at which the signal enhancement flattens out in preemphasis circuit if R1=50 Ω ,R2=70 Ω and C=0.45 μF.
Discuss
Answer: (a).12126.09 Hz
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