Satellite Communication MCQ Questions & Answers

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Learn Satellite 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. Satellite Communication MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-2 section-2

Each section contains 100 MCQs on Satellite Communication .

The transmission path loss for a geostationary satellite signal for uplink frequency of 6 GHz is

A) 60 dB B) 92 dB C) 184 dB D) 200 dB

Discuss

Answer & Solution

Answer: Option D

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

In radar systems, the term 'rat-race' is used in connection with

A) Modulator B) Pulse characteristics C) Receiver bandwidth D) Duplexer

Discuss

Answer & Solution

Answer: Option D

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

The propagation time from one earth station to another earth station via Geo-stationary satellite is approximately:

A) 125 msec B) 150 msec C) 300 msec D) 25 msec

Discuss

Answer & Solution

Answer: Option C

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

What is the reason for using frequencies of the order of a few GHz in satellite communication?

A) Antenna sizes are small and ionosphere does not reflect frequencies B) Helical antenna can be used at these frequencies C) Frequencies can pass through ionosphere without attenuation D) Easy availability of components at these frequencies

Discuss

Answer & Solution

Answer: Option A

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

The code division multiple access technique is not used in satellite communication because of

A) wastage of base band spectrum B) wastage in power C) increase in delay D) complexity and unreliability of operation

Discuss

Answer & Solution

Answer: Option A

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

Which factor determines the range resolution of a radar?

A) Size of the antenna B) Bandwidth of the transmitted pulse C) Power radiated from the antenna D) Centre frequency of the radar

Discuss

Answer & Solution

Answer: Option B

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

Antenna elevation angle at the ground station for satellite communication is always kept above 5° to

A) minimize the sky noise temperature B) reduce the effect of oxygen and water vapour absorption on the antenna noise temperature C) minimize the slant range D) increase the visibility of the satellite

Discuss

Answer & Solution

Answer: Option D

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

The height of Geostationary satellite (above earth) used for satellite communication is nearly

A) 300 km B) 3,500 km C) 10,000 km D) 36,000 km

Discuss

Answer & Solution

Answer: Option D

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

In satellite communication, highly directional antennas are used to

A) Direct the spot beam to a particular region of space on Earth B) Strengthen the beam to a overcome the cosmic noise C) Make corrections in change of polarization of the beam D) Select a particular channel in transmission and reception

Discuss

Answer & Solution

Answer: Option A

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

Long distance communication system via satellite uses frequency range.

A) 10 to 100 GHz B) 1 to 2.5 MHz C) 50 to 100 GHz D) 3 to 6 GHz

Discuss

Answer & Solution

Answer: Option D

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

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Satellite Communication MCQ Questions & Answers | ECE