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-1

Each section contains 100 MCQs on Microwave Communication .

Which of the following operating frequencies is used for the modern loran navigational system?

A) Loran C: 100 kHz B) Loran D: 10.2 kHz C) Loran A: 1950 kHz D) Loran B: 900 kHz

Discuss

Answer & Solution

Answer: Option A

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

The maximum usable range of the usual radar set (on any particular range setting) is determined by

A) The width of the transmitted pulses B) The interval between transmitted pulses C) The bandwidth of the receiver IF stages D) The duty cycle

Discuss

Answer & Solution

Answer: Option B

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

A Class-S Emergency Position-Indicating Radio Beacon (E.P.I.R.B)

A) Must be capable of floating or being secured to a survival B) Must have its battery replaced after emergency use C) May be tested during the first five minutes of any hour D) All of these

Discuss

Answer & Solution

Answer: Option D

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

A thin layer of dirt and grime coverts the reflecting surface of the parabolic dish of a radar set. The particular effect on the performance of the radar will be

A) A decrease in range B) A reduction in horizontal resolution C) No noticeable effect D) A decrease in gain

Discuss

Answer & Solution

Answer: Option C

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

Which of the reception problems below that is not due to multipath?

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

Discuss

Answer & Solution

Answer: Option D

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

A traveling-wave tube (TWT) amplifies by virtue of

A) The absorption of energy by the signal from an electron stream B) The effect of an external magnetic field C) The energy contained the cavity resonators D) The energy liberated form the collector

Discuss

Answer & Solution

Answer: Option A

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

Calculate the effective earth’s radius if the surface refractivity is 301.

A) 8493 km B) 8493 mmi C) 6370 km D) 6370 mi

Discuss

Answer & Solution

Answer: Option A

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

In an SHF pulsed radar set, a reflex klystron can be used as a

A) Single mixer stage B) Local oscillator C) Transmitter oscillator D) Duplexer stage

Discuss

Answer & Solution

Answer: Option B

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

To achieve good bearing resolution when using a pulsed-radar set, an important requirement is

A) A narrow, antenna-beam width in the vertical plane B) A narrow, antenna-beam width in the horizontal plane C) A low repetition rate D) A high duty cycle

Discuss

Answer & Solution

Answer: Option B

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

The highest frequency which a conventional vacuum tube oscillator can generate is not limited by the

A) Electron transit time B) Distributed lead inductance C) Inter-electrode capacitance D) Degree of emission from the cathode

Discuss

Answer & Solution

Answer: Option D

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

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Microwave Communication MCQ Questions & Answers | ECE