Microwave Communication MCQ Questions & Answers

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Learn Microwave Communication MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Microwave Communication MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-10 section-1

Each section contains 100 MCQs on Microwave Communication .

For which of the following purpose the cavity magnetron uses strapping

A) To ensure bunching B) To improve the phase-focusing effect C) To prevent mode jumping D) To prevent cathode back heating

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

A rectangular wave guide measure 3 × 4.5 cm internally and has a 9 GHz signal propagated in it. The cutoff wavelength for TE₁₀ mode is

A) 5 cm B) 10 cm C) 15 cm D) 9 cm

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

3 port Circulator is

A) Reciprocal, matched B) Non reciprocal, unmatched C) Non reciprocal, matched D) Reciprocal, unmatched

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The major difference between current probe and voltage probe is that current probe

A) Has a lower input impedance B) Can measure a.c. signals only C) Provides a method of inductive coupling D) All of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Regarding PIN diode which of the following statements is correct?

A) It is a microwave detector B) It is microwave mixer diode C) It is preferred as a microwave switch D) It is a metal semiconductor

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which device can detect the presence of both forward and backward waves in a waveguide?

A) Filter B) Detector C) Directional coupler D) Magic tee

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

To avoid difficulties with strapping at high frequencies, what type of cavity structure is used in magnetron?

A) Hole and slot B) Slot C) Vane D) Rising sun

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

A standard air filled waveguide WR-187 has inside all dimensions of a = 4.755 cm and b = 2.215 cm. At 12 GHz it will support

A) TE₁₀ mode only B) TE₁₀ and TE₂₀ modes only C) TE₁₀, TE₂₀ and TE₀₁ modes only D) TE₁₀, TE₂₀, TE₀₁ and TE₁₁ modes

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

In microwave system, waveguides have the advantages of

A) High power-handling capability and low loss B) Thin dielectric substrate C) Low power handling and adequate stability D) Positive phase shift

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

100

Which of the following is the most serious drawback of IMPATT diode?

A) Low power handling capacity B) High noise C) Low efficiency D) Inability to provide pulsed operation

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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Microwave Communication MCQ Questions & Answers | ECE