PEC 313326 IMP Questions For MSBTE Winter 2024 Exam

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Principles of Electronic Communication PEC 313326 exam paper is on 16th December 2024 so start your study earlier.

PEC 313326 IMP Questions For MSBTE Winter 2024 Exam

• CHAPTER-1 Basics of Electronic Communication
• 2 Marks Questions

1. State the need for Modulation.
2. Compare simplex, half duplex, and full duplex communication.
3. Define Noise and noise figure.
4. State the frequency range of the following
   • (i) Audio Frequency
   • (ii) IR Frequency
   • (iii) Voice Frequency
   • (iv) High Frequency.

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• 4 Marks Questions

1. Draw and explain the block diagram of the basic electronics communication system.
2. Define Noise and explain different types of noise involved in communication system.
3. Draw and explain the Electromagnetic Spectrum.
4. Explain Synchronous and Asynchronous Transmission.
5. Explain Series and Parallel transmission modes.

• CHAPTER-2 Amplitude Modulation Communication
• 2 Marks Questions

1. Define- i) Amplitude Modulation and ii) Modulation Index of AM wave.
2. Draw the time domain and frequency domain representation of the AM wave.
3. Write the expression for total power in AM, bandwidth, and Modulation Index of AM, and also write the mathematical expression of AM signal.
4. A 10kw carrier is an amplitude modulated by two sine waves to a depth of 0.5 & 0.6 respectively. Calculate the total power content of the modulated carrier.
5. State the types of AGC and also state the need for AGC.
6. Define AM Demodulation. Draw its input/output waveforms.
7. Draw the circuit diagram of the Practical diode detector.
8. Compare high-level and low-level modulation for AM.

• 4-Marks Questions

1. A 10 kw carrier is amplitude modulated of 75% depth of modulation by a modulating signal. Calculate sideband power, total power, and transmission efficiency of AM wave.
2. Draw and explain the block diagram of the Superheterodyne receiver with waveforms.
3. Draw and explain the working of the Diode Detector with waveforms.
4. Explain Delayed AGC with a circuit diagram and graph.

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