Communications 4 - Quiz 2

What are the two primary requirements of a transmission line?

• Maximum attenuation and maximum radiation

• Minimum attenuation and minimum radiation

• Maximum signal distortion and loss

• Minimum impedance and high power loss

Which of the following factors affect the characteristics of a transmission line?

• Electrical properties

• Physical properties

• Both a and b

• None of the above

The resistance of a transmission line depends on which factor?

• Dielectric material

• Cross-sectional area of the conducting material

• Distance between conductors

• Signal frequency

Which of the following describes the inductance of a transmission line?

• Opposition to current flow

• Ability to store energy in a magnetic field

• Measure of power loss per unit length

• Resistance to electric fields

What is the function of conductance (G) in a transmission line?

• Opposes changes in voltage

• Represents leakage current due to imperfect insulation

• Stores energy in an electric field

• Minimizes power transmission efficiency

What is another name for characteristic impedance (Zo)?

• Surge impedance

• Transmission resistance

• Power coefficient

• Reflection index

What does the velocity factor (VF) of a transmission line indicate?

• The ratio of signal velocity to the speed of light

• The percentage of signal attenuation

• The power loss per unit length

• The bandwidth of the transmission line

If a transmission line has a time delay of 75 ns at a frequency of 4 MHz, what does this represent?

• Phase shift per wavelength

• Total attenuation per unit distance

• Resistance of the conductor

• Signal distortion factor

What is the typical velocity factor range for coaxial cables?

• 0.2 to 0.4

• 0.4 to 0.6

• 0.6 to 0.8

• 0.8 to 1.0

Which parameter primarily affects time delay in a transmission line?

• Resistance and capacitance

• Inductance and capacitance

• Conductance and resistance

• Impedance and frequency