logo

CuriousTab

CuriousTab

Discussion

Home ‣ Electronics and Communication Engineering ‣ Microwave Communication Comments
  • Question

  • Radar reciever has high sensitivity and low noise figure


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • Microwave Communication problems

    Search Results

    • 1. Which mode is called dominant mode in rectangular wave guide?

    • Options
    • A. TE01
    • B. TE11
    • C. TE10
    • D. TE20
      • Discuss
    • 2. The electrical requirement on wall thickness of rectangular wave guide is

    • Options
    • A. wall thickness is more than skin depth
    • B. wall thickness is less than skin depth
    • C. wall thickness is equal to skin depth
    • D. either (b) or (c)
      • Discuss
    • 3. Which of the following modes in circular waveguides are circularly symmetric?

    • Options
    • A. TE01
    • B. TE02
    • C. both (a) and (b)
    • D. neither (a) nor (b)
      • Discuss
    • 4. Klystron amplifier is not used to amplifier very weak microwave signals due to

    • Options
    • A. low gain for weak signals
    • B. low noise for weak signals
    • C. high noise
    • D. both (a) and (b)
      • Discuss
    • 5. In fibre optics the use is made of thin glass fibres for efficient transmission of light.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. Which of the following lines behaves as infinite line?

    • Options
    • A. a line terminated in inductance
    • B. a line terminated in capacitance
    • C. a short line
    • D. a line terminated in z0
      • Discuss
    • 7. Most electromagnetic transmission in rectangular wave-guide uses

    • Options
    • A. TE10 mode
    • B. TE01 mode
    • C. TE20 mode
    • D. TE11 mode
      • Discuss
    • 8. A line of characteristic impedance 400 ? is terminated by a resistance of 400 ?. The reflected quantities are

    • Options
    • A. zero
    • B. equal to incident quantities
    • C. half the incident quantities
    • D. double the incident quantities
      • Discuss
    • 9. VTM stands for voltage tunable magnetron.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. The main advantage of TWT over klystron is

    • Options
    • A. higher bandwidth
    • B. higher gain
    • C. higher frequency
    • D. higher output
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.