MUMBAI UNIVERSITY STUDENTS ASSOCIATION (MUSA)
QUESTION BANK OF PRINCIPLE OF COMMUNICATION
S.E SEM-III BRANCH: IT FOR WINTER SESSION – NOVEMBER 2024
Q.1) Define signal to noise ratio. Explain the effect of cascade connection on a signal to noise
ratio. Derive Friss formula for two stage cascade amplifier.
Q.2) Explain the generation and detection of ASK Signal.
Q.3) Draw the block diagram of BSK generation & detection explain the working giving
waveforms.
Q.4) Draw the block diagram of PAM generator and detector. Explain the working giving
waveform at the output of each block.
Q.5) Explain FDM transmitter & receiver with block diagram.
Q.6) Draw and explain the Electromagnetic Spectrum and state its application.
Q.7) Draw the mathematical expression of AM in details.
Q.8) What are the drawbacks of TRF receiver? Explain how these limitation are avoided using
super-heterodyne receiver. And explain the characteristics of super heterodyne receiver.
Q.9) Explain varactor diode method of FM Generation with the help of neat circuit diagram.
Q.10) Explain the principle of reflection and refraction.
Q.11) Explain quantization process in PCM with suitable neat diagram.
Q.12) Explain Amplitude Modulation Technique DSBFC.
Q.13) Explain in detail generation of DSB using Balanced modulator.
Q.14) Explain in detail generation of SSB with phase shift method.
Q.15) Derive the mathematical expression for FM with neat sketch.
Q.16) Explain the working of Ratio detector with the help of neat circuit diagram.
Q.17) What is Sampling theorem? Draw the waveform for low pass and band pass signal also
write the steps to prove Sampling theorem.
Q.18) Explain different types of communication channels.
Q.19) Explain digital transmission and state its advantages.
Q.20) Differentiate between the following:
i) PAM, PWM & PPM
ii) Ground wave, Sky wave, space wave and tropospheric scatter propagation
iii) AM & FM
iv) ASK, FSK & PSK
Q.21) Write a short note on:
i) Pre-emphasis and de-emphasis
ii) Need of modulation
iii) Delta modulation
Q.22) Define: i) Noise Temperature ii) Noise Voltage iii) Noise bandwidth iv) Noise figure
v) PSK Signal vi) Modulation vii) ISI & TDM viii) Multiplexing ix) baseband signal x) Image
Frequency xi) Slope overload error OR Aliasing or fold over error.
*****ALL THE BEST*****
