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Information and Communication Technology - 8
1.
Which part of communication system takes the signal from the transmission channel?
a) Transmission channel
b) Transmitter
c) Receiver
d) Microwave
2.
Which part of communication system delivers signal to the transducer after processing it?
a) Receiver
b) Transmission channel
c) Transmitter
d) Microwave
3.
Which part of communication system may amplify the input signal to compensate for transmission loss?
a) Receiver
b) Transmitter
c) Transmission channel
d) Microwave
4.
Who made the simple telephone model in 1876?
a) J. Mac Farad
b) Marconi
c) Alexander Graham Bell
d) Isaac Newton
5.
Which of the following components were present in simple telephone model made by Alexander Graham Bell?
a) All of these
b) Metal reed
c) Electric coil
d) Vibrating diaphragm
6.
How many parts telephone systems have?
a) Two
b) One
c) Three
d) Four
7.
The mouthpiece contains ....................granules?
a) Silver
b) Sulphur
c) Carbon
d) Graphite
8.
What is fitted in telephone receiver?
a) Magnet
b) Electromagnet
c) Electromagnet and diaphragm
d) Diaphragm
9.
The receiver contains ....................granules?
a) Graphite
b) Carbon
c) Sulphur
d) Silver
10.
When was simple telephone model made by Alexander Graham Bell?
a) In 1678
b) In 1867
c) In 1786
d) In 1876
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