Rajasthan Technical Education Second Year Paper 2016 Wave Propagation & Communication Engineering

Rajasthan Technical Education Second Year Paper 2016 Wave Propagation & Communication Engineering

Basic components of communication system are
(a) Transmitter
(b) Receiver
(c) Medium
(d) All of the above

Example of omni-directional communication
(a) Radio transmission
(b) Internet
(c) Telephone
(d) Walky-Talky

Digital modulation is
(a) Pulse amplitute modulation
(b) Pulse code modulation
(c) Pulse width modulation
(d) Pulse position modulation

External Noise
(a) Industrial noise
(b) Atmospheric noise
(c) Extraterrestrial noise
(d) All of the above

Cross talk is derived through
(a) only magnetic induction
(b) only electrostatic induction
(c) both magnetic & electrostatic induction
(d) None of the above

NEXT means
(a) Near to source
(b) Near to load
(c) In between source & load
(d) None of the above

Space wave propagation is based on
(a) Line of sight propagation
(b) Inospheric reflection
(c) Tropospheric scattering
(d) Ionospheric absorption

Electromagnetic wave propagation means
(a) Ground wave propagation
(b) Space wave propagation
(c) Sky wave porpagation
(d) All of the above

Fading means
(a) Fluctuations in signal strength at receiver
(b) Fluctuations in signal strength through transmitter
(c) Stabilization in signal strength at receiver
(d) All of the above

Polarization means
(a) Physical orientation of electric vector
(b) Physical orientation of magnetic vector
(c) Physical orientatin of resultant vector
(d) None of the above