Microwave Communication MCQ

Microwave Communication MCQ

  • Admin
  • 17th Apr, 2021

Take Microwave Communication MCQ Test & Online Quiz to test your Knowledge

Below is the Microwave Communication MCQ test that checks your basic knowledge of Microwave Communication. This Microwave Communication MCQ Test contains 20 Multiple Choice Questions. You have to select the right answer to the question. Finally, you can also take the Online Quiz from the Take Microwave Communication Quiz Button. 

Microwave Communication MCQ Test

1) In which of the following places microwave resonators are used?

  • A. Microwave oscillators
  • B.Microwave frequency metres
  • C.Microwave narrow band amplifier
  • D.All of the above

2) A wave guide section in a microwave circuit acts as HP filter.

  • A. True
  • B.False

3) Which of the following is the progressive decrease of signal strength with increasing distance?

  • A. Modulation
  • B.Radiation
  • C.Attenuation
  • D.None of the above

4) The usual mixer stage is ........ In a radar-set receiver.

  • A. A tunnel diode
  • B.A silicon crystal
  • C.A Rochelle salts crystal
  • D.None of the above

5) The STC circuit is used to reduce interference from the effects of sea return In a pulsed radar set.

  • A. True
  • B.False

6) .......... is not a common microwave application.

  • A. Telephone
  • B.Radar
  • C.Mobile radio
  • D.Satellite communications

7) Stripline and microstrip transmission lines are usually made with .............

  • A. PCBs
  • B.Coax
  • C.Twisted pair
  • D.Parallel wires

8) Which of the following is a popular microwave mixer diode?

  • A. Gunn
  • B.Impatt
  • C.Varactor
  • D.Hot carrier

9) The velocity factor of a transmission line depends on

  • A. Skin effect
  • B.Temperature
  • C.Relative permittivity of dielectric
  • D.None of the above

10) In a circular waveguide the dominant mode is TE11.

  • A. True
  • B.False

11) In a directional coupler

  • A. isolation (dB) equals (coupling) (directivity)
  • B.isolation (dB) equals coupling plus directivity
  • C.coupling (dB) equals isolation plus directivity
  • D.None of the above

12) Which of the following lines is non-radiating?

  • A. Coaxial
  • B.Open two wire
  • C.Both A & B
  • D.None of the above

13) Which of the following parameters is negligible in transmission lines?

  • A. L
  • B.G
  • C.R
  • D.C

14) At microwave frequencies, the size of antenna becomes

  • A. Large
  • B.Small
  • C.Very large
  • D.Very small

15) The fabrication of microstrip line is done by

  • A. Oxidation
  • B.Cladding
  • C.Photo etching
  • D.Printed circuit technique

16) Which of the following noise becomes important at microwave frequencies?

  • A. Short noise
  • B.Thermal noise
  • C.Flicker noise
  • D.Transit time noise

17) Which of the following devices uses a slow wave structure?

  • A. TWT
  • B.Reflex klystron oscillator
  • C.Klystron two cavity amplifier
  • D.Klystron multicavity amplifier

18) A waveguide section in a microwave circuit acts as

  • A. LP filter
  • B.HP filter
  • C.Bandpass filter
  • D.Band stop filter

19) Microwave frequency range extends from

  • A. 3 MHz to 30 MHz
  • B.30 MHz to 300 MHz
  • C.500 MHz to 30,000 MHz
  • D.None of the above

20) Impedance inversion may be obtained with

  • A. A half wave line
  • B.A quarter wave line
  • C.A short circuited stub
  • D.An open circuited stub

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