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WorksheetsCommunication Principles Quiz
Total questions: 15
Worksheet time: 8mins
What year was the telegraph invented by Samuel Morse?
1837
1876
1897
1962
Which of the following is a type of communication operation that allows data to be sent in both directions but only one at a time?
Full-Duplex
Half-Duplex
Simplex
Analog
What is the primary function of a transmitter in a communication system?
To receive signals
To modify and transmit signals
To provide a communication channel
To convert signals to their original form
Which type of cable is known for its high bandwidth and is used in long-distance telephone lines?
Waveguide
Fiber Optic Cable
Coaxial Cable
Twisted Pair
What is the frequency range of Very Low Frequency (VLF) communication?
300-3000 kHz
30-300 kHz
3-30 kHz
3-30 GHz
What is the main advantage of digital communication over analog communication?
Error detection and correction
Continuous signal transmission
More noise accumulation
Higher cost
Which of the following describes a full-duplex operation?
Simultaneous two-way communication
One-way communication
No communication
Two-way communication, one at a time
What is the purpose of modulation in communication systems?
To increase signal strength
To reduce noise
To convert digital signals to analog
To change properties of the information for transmission
What type of signal is characterized by a continuous range of values?
Digital
Baseband
Analog
Modulated
Which of the following is NOT a type of noise in communication systems?
Flicker noise
Shot noise
Digital noise
Thermal noise
What is the typical use of the frequency band 30 MHz - 300 MHz?
AM broadcasting
VHF television
Submarine communication
Microwave links
What is the main disadvantage of fiber optic cables?
Heavy weight
High cost
Low bandwidth
Easy installation
Which component of a communication system converts electrical signals back to their original form?
Channel
Receiver
Transducer
Transmitter
What is the definition of a baseband signal?
A signal that is only digital
A signal that has a high frequency
A signal that is transmitted directly without modification
A signal that is modulated for transmission
What is the primary role of a channel in a communication system?
To generate signals
To modify signals
To receive signals
To transmit signals from transmitter to receiver
