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-7 section-1

Each section contains 100 MCQs on Microwave Communication .

In an H-plane tee

A) All the three arms lie in electric field plane B) All the three arms lie in magnetic field plane C) All the three arms lie in plane perpendicular to magnetic field D) None of the above

Discuss

Answer & Solution

Answer: Option B

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 be increase B) Output power would increase C) 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

The main disadvantage of the two hole directional coupler is

A) Low directional coupling B) Poor directivity C) High VSWR D) Narrow bandwidth

Discuss

Answer & Solution

Answer: Option D

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

Indicate the false statement-
When the free-space wavelength of a signal equals the cut-off wavelength of the guide-

A) the group velocity of the signal becomes zero B) the phase velocity of the signal becomes infinite C) the characteristic impedance of the guide becomes infinite D) the wavelength within the waveguide becomes infinite

Discuss

Answer & Solution

Answer: Option C

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

In a Gunn diode, the negative resistance is due to

A) Tunneling across the junction B) High reverse bias C) Electron domain formation at the junction D) Electron transfer to the less mobile energy level

Discuss

Answer & Solution

Answer: Option D

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

Phase focusing, which leads to bunching of electrons takes place in which of the following?

A) Double resonator klystron B) Reflex Klystron C) TWT D) Magnetron

Discuss

Answer & Solution

Answer: Option D

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

In microwave telemetry, repeated station are required to cover large area. What is, generally, the distance between repeater stations?

A) 10 km B) 20 km C) 40 km D) 100 km

Discuss

Answer & Solution

Answer: Option C

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

Which of the following materials used in tunnel diode

A) GaAs B) Ge C) BaO₂ D) P₂O₅

Discuss

Answer & Solution

Answer: Option B

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

Schottky diode has high switching speed because:

A) it has a low turn on voltage B) it has a low series resistance C) it has a small junction area D) it is a majority carrier device

Discuss

Answer & Solution

Answer: Option A

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

The idler frequency of a non de-generate parametric amplifier with input frequency f_i and pump frequency f_p is

A) f_p - f_i B) f_i - f_p C) f_i + f_p D) $$\frac{{{{\text{f}}_{\text{i}}} + {{\text{f}}_{\text{p}}}}}{2}$$

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