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-4 section-2

Each section contains 100 MCQs on Microwave Communication .

High frequency transistors are designed especially for:

A) LF applications (100 kHz and above) B) RF applications (100 kHz and above) C) DF applications (below 100 kHz) D) AF applications (below 100 kHz)

Discuss

Answer & Solution

Answer: Option B

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

A distortion analyzer uses twin-T filter to

A) Suppress the fundamental frequency B) Pass only fundamental frequency C) filters mains frequency noise D) filter the RF noise

Discuss

Answer & Solution

Answer: Option C

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

The maximum usable frequency of an ionospheric layer at 60° incidence and with 8 MHz critical frequency is

A) 16 MHz B) $$\frac{{16}}{{\sqrt 3 }}{\text{MHz}}$$ C) 8 MHz D) About 6.93 MHz

Discuss

Answer & Solution

Answer: Option A

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

The cut-off frequency of the dominant mode of a rectangular waveguide having aspect ratio more than 2 is 10 GHz. The inner broad wall dimension is given by

A) 3 cm B) 2 cm C) 1.5 cm D) 2.5 cm

Discuss

Answer & Solution

Answer: Option C

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

For which of the following reasons the TWT is sometimes preferred to the multi-cavity klystron amplifier?

A) It produces a higher output power B) It has a greater bandwidth C) It is more efficient D) It has higher number of modes

Discuss

Answer & Solution

Answer: Option B

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

A rectangular waveguide having TE₁₀ mode as dominant mode is having a cutoff frequency of 18-GHz of the TE₃₀ mode. The inner broad-wall dimension of the rectangular waveguide is

A) $$\frac{5}{3}$$ cms B) 5 cms C) $$\frac{5}{2}$$ cms D) 10 cms

Discuss

Answer & Solution

Answer: Option C

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

The dominant mode in a rectangular waveguide is TE₁₀, because this mode has

A) no attenuation B) no cut-off C) no magnetic field component D) the highest cut-off wavelength

Discuss

Answer & Solution

Answer: Option D

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

A cylindrical cavity operating in TE₁₁₁ mode has a 3 dB bandwidth of 2.4 MHz and its quality factor is 4000. Its resonant frequency would be

A) $$9.6\,{\text{GHz}}$$ B) $$\frac{{9.6}}{{\sqrt 2 }}{\text{GHz}}$$ C) $$\frac{{9.6}}{{\sqrt 3 }}{\text{GHz}}$$ D) $$\frac{{9.6}}{{\sqrt 6 }}{\text{GHz}}$$

Discuss

Answer & Solution

Answer: Option A

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

Which of the following statements is not true of waves in general

A) It may be a function of time only B) It may be sinusoidal or co sinusoidal C) It must be a function of time and space D) For practical reasons, it must be finite in extent

Discuss

Answer & Solution

Answer: Option A

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

An H-plane tee is also known as

A) Shunt tee B) Series tee C) Magic tee D) Hybrid tee

Discuss

Answer & Solution

Answer: Option A

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

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Microwave Communication MCQ Questions & Answers | ECE