Standing Waves MCQ

Test your knowledge with important Standing Waves MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Standing Waves MCQs at Bissoy

• What is the resistive load if SWR= 3.05 and Zo =75Ω?
  ক

  1.23Ω

  খ

  51.23Ω

  গ

  254.2Ω

  ঘ

  24.59Ω
• What percentage of power is reflected if the reflection coefficient is 0.5?
  ক

  50%

  খ

  75%

  গ

  25%

  ঘ

  12%
• What is the reflection coefficient If a line is terminated in its characteristic impedance?
  ক

  0

  খ

  Infinity

  গ

  2

  ঘ

  0.5
• The ratio of the incident voltage wave Vi to the reflected voltage wave Vr is called the reflection coefficient.
  ক

  True

  খ

  False
• What is the Standing wave ratio if a 75Ω antenna load is connected to a 50Ω transmission line?
  ক

  1

  খ

  2

  গ

  1.5

  ঘ

  1.43
• In an unmatched line the actual signal on the line is ___________
  ক

  The sum of forward and reflected signals

  খ

  The difference of forward and reflected signals

  গ

  The product of forward and reflected signals

  ঘ

  The modulus of forward signal
• How would the graph of wavelength vs voltage look like if the transmission line is matched (neglect resistive loss)?
  ক

  Linearly increasing

  খ

  Linearly decreasing

  গ

  Exponentially decreasing

  ঘ

  Constant
• The transmission line in which the resistive impedance is equal to the characteristic impedance is called _____
  ক

  Matched lines

  খ

  Paralleled lines

  গ

  Balanced lines

  ঘ

  Unbalanced lines
• What is the load on a transmission line?
  ক

  0 Ω

  খ

  Infinity

  গ

  Some value between 0 and infinity

  ঘ

  Some value between0 and 1
• Which of the following is not true regarding standing wave?
  ক

  In a standing wave the energy moves towards the power source

  খ

  In a standing wave power loss occurs

  গ

  Standing waves do not affect signal strength

  ঘ

  Standing waves are not desirable
• Which of the following does not cause standing waves?
  ক

  Short circuit

  খ

  Open circuit

  গ

  High frequency high power signal

  ঘ

  Impedance is not matched