Electronic Communication Quiz: Test!
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Electronic communication is a term that encompasses many kinds of computer-mediated communication in which people exchange messages with others, either through e-mail or within social groups, like social media and Facebook. This quiz poses questions like what two key barriers to human communications are, what the communication medium causes signals to be, and the simultaneous two-way communications. This quiz explains electronic communication. Give it a shot.
- 1.Communication is the process of:
- A.
Keeping in touch
- B.
Broadcasting
- C.
Exchanging information
- D.
Entertainment by electronics
- 2.Two key barriers to human communications are:
- A.
Distance and Language
- B.
Ignorance
- 3.Electronic communications were discovered in which century?
- A.
Sixteenth
- B.
Eighteenth
- C.
Nineteenth
- D.
Twentieth
- 4.Which of the following is not a major communications medium?
- A.
Free space
- B.
Water
- C.
Wires
- D.
Fiber optic cable
- 5.Random interference to transmitted signals is called:
- A.
Adjacent channel overlap
- B.
Cross talk
- C.
Garbage-in-garbage-out
- D.
Noise
- 6.The communications medium causes the signal to be:
- A.
Amplified
- B.
Modulated
- C.
Attenuated
- D.
Interfered with
- 7.Which of the following is not a source of the noise?
- A.
Another communications signal
- B.
Atmospheric effects
- C.
Manufactured electrical systems
- D.
Thermal agitation in electronic components
- 8.One-way communications are called:
- A.
Half-duplex
- B.
Full duplex
- C.
Monocomm
- D.
Simplex
- 9.Simultaneous two-way communications are called:
- A.
Half duplex
- B.
Full duplex
- C.
Bicomm
- D.
Simplex
- 10.The original electrical information signal to be transmitted is called:
- A.
Modulating signal
- B.
Carrier
- C.
Baseband signal
- D.
Source signal
- 11.The process of modifying a high-frequency carrier with the information to be transmitted is called:
- A.
Multiplexing
- B.
Telemetry
- C.
Detection
- D.
Modulation
- 12.The process of transmitting two or more information signals simultaneously over the same channel is called:
- A.
Multiplexing
- B.
Telemetry
- C.
Mixing
- D.
Modulation
- 13.Continuous voice or video signals are referred to as being:
- A.
Baseband
- B.
Analog
- C.
Digital
- D.
Continuous wave
- 14.Recovering information from a carrier is known as:
- A.
Demultiplexing
- B.
Modulation
- C.
Detection
- D.
Carrier Recovery
- 15.Transmission of graphical information over the telephone network is accomplished by:
- A.
Television
- B.
CATV
- C.
Videotext
- D.
Facsimile
- 16.Measuring physical conditions at some remote location and transmitting this data for analysis is the process of:
- A.
Telemetry
- B.
Instrumentation
- C.
Modulation
- D.
Multiplexing
- 17.Receiving electromagnetic emissions from stars is called:
- A.
Astrology
- B.
Optical astronomy
- C.
Radio astronomy
- D.
Space surveillance
- 18.A personal communications hobby for individuals is:
- A.
Ham radio
- B.
Electronic bulletin board
- C.
CB radio
- D.
Cellular radio
- 19.Radar is based upon:
- A.
Microwaves
- B.
A water medium
- C.
The directional nature of radio signals
- D.
Reflected radio signals
- 20.A frequency of 27 MHz has a wavelength of approximately:
- A.
11m
- B.
27m
- C.
30m
- D.
81m
- 21.Radio signals are made up of:
- A.
Voltage and currents
- B.
Electric and magnetic fields
- C.
Electrons and protons
- D.
Noise and data
- 22.The voice frequency range is:
- A.
30 to 300 Hz
- B.
300 to 3000 Hz
- C.
20 Hz to 20 KHz
- D.
0 Hz to 15 KHz
- 23.Another name for signals in the HF range is:
- A.
Microwaves
- B.
RF waves
- C.
Short waves
- D.
Millimeter waves
- 24.Television broadcasting occurs in what ranges?
- A.
HF
- B.
EHF
- C.
VHF
- D.
UHF
- 25.Electromagnetic waves produced primarily by heat is called:
- A.
Infrared rays
- B.
Microwaves
- C.
Shortwaves
- D.
X-rays
Questions: 100 | Attempts: 29340 | Last updated: Nov 24, 2021
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