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-5 section-1

Each section contains 100 MCQs on Microwave Communication .

The resonant frequency of a cavity resonator depends upon

A) The mode of operation B) Its electrical dimensions C) Its physical dimensions D) The capacitor which tunes it

Discuss

Answer & Solution

Answer: Option C

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

In microwave transmission using digital radio, what causes most intersymbol interference?

A) Delayed spreading B) Rayleigh fading C) Random Doppler shift D) Slow fading

Discuss

Answer & Solution

Answer: Option A

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

The cavity resonator

A) Is equivalent to an LC resonant circuit B) In a reflect klystron has its output taken from the reflector plate C) Produces a frequency which is independent of the cavity size. D) Has a low Q factor for narrow operation.

Discuss

Answer & Solution

Answer: Option A

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

What ferrite device can be used instead of duplexer of isolate microwave transmitter and receiver when both are connected to the same antenna?

A) Isolator B) Magnetron C) Simplex D) Circulator

Discuss

Answer & Solution

Answer: Option D

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

At what position is the input signal inserted into a traveling-wave tube?

A) At the cathode end of the helix B) At the collector C) At the collector end of the helix D) At the control grid of the electron gun

Discuss

Answer & Solution

Answer: Option A

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

What is the purpose of the electromagnetic field which surrounds a traveling-wave tube?

A) To accelerate the electron B) To velocity modulate the electron beam C) To keep the electrons from spreading out D) To slow down the signal on the helix

Discuss

Answer & Solution

Answer: Option C

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

The Gunn diode oscillator

A) Is capable of generating continuous microwave power of the order of kilowatt B) Generates frequencies which are below 100 MHz C) Operates over a positive resistance characteristic D) Depends on the formation of charge domain

Discuss

Answer & Solution

Answer: Option D

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

In a radar-set receiver, the usual mixer stage is

A) And FET B) A tunnel diode C) A silicon crystal D) A Rochelle salts crystal

Discuss

Answer & Solution

Answer: Option C

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

Theoretically electromagnetic radiation field strength varies in inverse proportion to the square of the distance, but when atmospheric attenuation effects and the absorption of the terrain are taken into account the attenuation can be as high as the inverse ___________ power of the distance.

A) Third B) Fourth C) Fifth D) Sixth

Discuss

Answer & Solution

Answer: Option D

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

A reflex klystron is oscillating at the frequency of its resonant cavity. If the reflector voltage is made slightly less negative, the

A) Oscillation will cease B) Output power would increase C) The frequency will decrease D) Bunching would occur earlier in time

Discuss

Answer & Solution

Answer: Option C

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

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Microwave Communication MCQ Questions & Answers | ECE