Exam Details
| Subject | Principles of Communication Engineering | |
| Paper | ||
| Exam / Course | Diploma In Electronics And Communication Engineering (DECVI)/ Advanced Level Certificate Course In Electronics And Communication Engineering (ACEVI)/ | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2016 | |
| City, State | new delhi, |
Question Paper
1. Choose the correct answer.
When the load impedance equals to Z0 of the line, it means that the load all the power.
reflects
absorbs
attenuates
radiates
The output of a mixer in a receiver system produces
the difference between the modulated RF and the local oscillator
the sum of the modulated RF and the local oscillator
an audio signal
the difference and the sum of both the modulated RF and local oscillator frequencies
Computer to computer communication is
Simplex
Duplex
HalfDuplex
Both Duplex and HalfDuplex
The type of modulation in the TV picture transmission is
amplitude modulation
phase modulation
frequency modulation
phase or frequency modulation
Which of the following antennas uses a number of varying length parallel elements?
Helical antenna
Pyramidal horn antenna
Comer reflection antenna
Yagi uda antenna
What kind of antenna polarization should you use when working with medium and low frequencies
Induction
Horizontal
Electrical
Vertical
Which region of the ionosphere is ionized at all hours of day and night?
D
E
F
G
Write the principles involved in parabolic reflectors.
What is the use of reflector and director in Yagi-Antenna system?
Draw the block diagram of AM superheterodyne radio receiver and explain the function of each block.
Explain the concept of pre-emphasis and de-emphasis.
Explain briefly -about ground wave propagation with a neat sketch.
Mention the various problems associated with sky way mode of propagation. How are these problems overcome?
What are the advantages of FM over AM
A 5 kW carrier is modulated to a depth of 70%. Calculate the total power in the modulated wave.
6. Define any seven of the following:
Modulation
Sensitivity
Fidelity of a radio receiver
Frequency deviation
Critical frequency
Skip distance
Fidelity
Antenna gain
Directivity
Loop Antenna
Write short notes
Types of Electronic Communication
Write short notes
Need of AGC
Write short notes
When the load impedance equals to Z0 of the line, it means that the load all the power.
reflects
absorbs
attenuates
radiates
The output of a mixer in a receiver system produces
the difference between the modulated RF and the local oscillator
the sum of the modulated RF and the local oscillator
an audio signal
the difference and the sum of both the modulated RF and local oscillator frequencies
Computer to computer communication is
Simplex
Duplex
HalfDuplex
Both Duplex and HalfDuplex
The type of modulation in the TV picture transmission is
amplitude modulation
phase modulation
frequency modulation
phase or frequency modulation
Which of the following antennas uses a number of varying length parallel elements?
Helical antenna
Pyramidal horn antenna
Comer reflection antenna
Yagi uda antenna
What kind of antenna polarization should you use when working with medium and low frequencies
Induction
Horizontal
Electrical
Vertical
Which region of the ionosphere is ionized at all hours of day and night?
D
E
F
G
Write the principles involved in parabolic reflectors.
What is the use of reflector and director in Yagi-Antenna system?
Draw the block diagram of AM superheterodyne radio receiver and explain the function of each block.
Explain the concept of pre-emphasis and de-emphasis.
Explain briefly -about ground wave propagation with a neat sketch.
Mention the various problems associated with sky way mode of propagation. How are these problems overcome?
What are the advantages of FM over AM
A 5 kW carrier is modulated to a depth of 70%. Calculate the total power in the modulated wave.
6. Define any seven of the following:
Modulation
Sensitivity
Fidelity of a radio receiver
Frequency deviation
Critical frequency
Skip distance
Fidelity
Antenna gain
Directivity
Loop Antenna
Write short notes
Types of Electronic Communication
Write short notes
Need of AGC
Write short notes
Other Question Papers
Departments
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Subjects
- Advance Microprocessor And Architecture
- Analog And Mixed Mode Vlsi Design
- Analog Communication
- Analog Electronic Circuits
- Analog Integrated Circuits Design
- Antennas And Propagation
- Applied Electronics
- Audio and Video Engineering
- Basic Telematics
- Basics Of Electronics Engineering
- Bio Informatics
- Circuits and Networks
- Computer Architecture
- Computer Communication Networks
- Control Engineering
- Data Communication And Network
- Data Structures
- Device Modelling For Circuit Simulation
- Digital Communication
- Digital Electronics
- Digital Signal Processing
- Digital System Design
- Dip- ECE PCB Design & Testing
- Electromagnetic Field Theory
- Electronic Measurement And Instrumentations
- Electronic Measurement and Instruments
- Electronic Product Design
- Electronic Switching Circuits
- Embedded System Design
- Industrial Electronics
- Information Theory And Coding
- Linear Integrated Circuits
- Maintenance Of Electronic Equipment
- Micro Controller
- Micro Controllers
- Microelectronics Technology
- Microprocessor
- Microprocessor And Its Applications
- Microwave And Radar Engineering
- Modeling And Testing Of Digital Systems
- Multirate Systems
- Nano - Electronics
- Optical Fiber Communication
- Opto Electronics Communication Systems
- Power Electronics
- Principles of Communication Engineering
- Quantum Communication
- Rf Circuits
- Satellite And Tv Engineering
- Signal Compression
- Signals And Systems
- Technical English
- Television Engineering
- Wireless Communication