Exam Details
| Subject | Principles of Communication Engineering | |
| Paper | ||
| Exam / Course | Diploma -VIEP-Computer Science and Engineering(DCSVI)/Advanced Level O Certificate Course In Cse (ACCSVI) B.Tech. Computer Science And Engineering (BT | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2016 | |
| City, State | new delhi, |
Question Paper
No. of Printed Pages: 4 IBICS-034 I
DIPLOMA -VIEP -COMPUTER SCIENCE AND
ENGINEERING (DCSVI)
Term-End Examination
00033 December, 2016
BICS-034 PRINCIPLES OF COMMUNICATION
ENGINEERING
Time: 2 hours Maximum Marks: 70
Note: Attempt any five questions. Question no. 1 is compulsory. Each question carries equal marks.
1. Choose the correct answer. 7x2=14
In the communication system, noise is most likely to affect the signal
at the transmitter
in the channel
in the information source
at the destination
The modulation index of an AM wave is changed from 0 to 1. The transmitted power will be
unchanged
halved
doubled
increased by 50 percent
For the transmission-line load matching over a range of frequencies, it is best to use a
balun
broadband directional coupler
double stub
single stub of adjustable position
To couple a coaxial line to a parallel-wire line, it is best to use a
slotted line
balun
directional coupler
quarter-wave transformer
One of the following is not an omnidirectional antenna:
Half-wave dipole
Log-periodic
Discone
Marconi
Frequencies in the UHF range normally propagate by means of
ground waves
sky waves
surface waves
space waves
When electromagnetic waves travel in free space, only one of the following can happen to them
Absorption
Attenuation
Refraction
Reflection
2. Define a duplex communication system. Explain the full-duplex and half-duplex systems. 7
Draw the block diagram of a communication system and explain the functions of each block. 7
3. Draw and explain the block diagram of an FM transmitter. 7
Write at least seven differences between Amplitude Modulation and Frequency Modulation. 7
4. What are the various types of Radio receivers and Heterodyne receivers? 7
What is Phase-Lacked-Loop Write its applications. 7
5. Define Standing Wave Ratio (SWR). Explain the implications of SWR on medical applications. 7
Explain in brief Impedance matching stubs. 7
6. Describe the characteristics and applications of a Dipole Antenna. 7
What is fading and how does it affect the performance of a communication system? 7
7. Write short notes on the following:
FM Detector 5
Loop Antenna 5
Sky Wave Propagation 4
DIPLOMA -VIEP -COMPUTER SCIENCE AND
ENGINEERING (DCSVI)
Term-End Examination
00033 December, 2016
BICS-034 PRINCIPLES OF COMMUNICATION
ENGINEERING
Time: 2 hours Maximum Marks: 70
Note: Attempt any five questions. Question no. 1 is compulsory. Each question carries equal marks.
1. Choose the correct answer. 7x2=14
In the communication system, noise is most likely to affect the signal
at the transmitter
in the channel
in the information source
at the destination
The modulation index of an AM wave is changed from 0 to 1. The transmitted power will be
unchanged
halved
doubled
increased by 50 percent
For the transmission-line load matching over a range of frequencies, it is best to use a
balun
broadband directional coupler
double stub
single stub of adjustable position
To couple a coaxial line to a parallel-wire line, it is best to use a
slotted line
balun
directional coupler
quarter-wave transformer
One of the following is not an omnidirectional antenna:
Half-wave dipole
Log-periodic
Discone
Marconi
Frequencies in the UHF range normally propagate by means of
ground waves
sky waves
surface waves
space waves
When electromagnetic waves travel in free space, only one of the following can happen to them
Absorption
Attenuation
Refraction
Reflection
2. Define a duplex communication system. Explain the full-duplex and half-duplex systems. 7
Draw the block diagram of a communication system and explain the functions of each block. 7
3. Draw and explain the block diagram of an FM transmitter. 7
Write at least seven differences between Amplitude Modulation and Frequency Modulation. 7
4. What are the various types of Radio receivers and Heterodyne receivers? 7
What is Phase-Lacked-Loop Write its applications. 7
5. Define Standing Wave Ratio (SWR). Explain the implications of SWR on medical applications. 7
Explain in brief Impedance matching stubs. 7
6. Describe the characteristics and applications of a Dipole Antenna. 7
What is fading and how does it affect the performance of a communication system? 7
7. Write short notes on the following:
FM Detector 5
Loop Antenna 5
Sky Wave Propagation 4
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