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Module 4: Telecommunications

Authored by Stephen Zahra

Other

12th Grade

Used 3+ times

Module 4: Telecommunications
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12 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sending, propagating and receiving an analog or digital information signal is called

transmission

demodulation

multiplexing

refraction

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Digital signals consist of

waveforms

numbers only

numbers and letters

pulses of ON and OFF

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The process of sending more than one signal is

conductance

channelling

multiplexing

transmission

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The transmission of information by electromagnetic radiation depends on the process of

refraction

translation

modulation

digitisation

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The name of the instrument used to determine the usable frequencies of the ionosphere

radar

ionosonde

spectrometer

galvanometer

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Communication satellites orbit in

low orbits

high orbits

stationary orbits

geostationary orbits

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The combination of a carrier wave and intelligence wave produces a

sky wave

sine wave

direct wave

modulated wave

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