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-7 section-1

Each section contains 100 MCQs on Satellite Communication .

In the radar guidance of missiles where the missile has its own radar and its extracts the tracking data from the target reflected energy, the technique is known as

A) Command guidance B) Beam rider guidance C) Homing guidance D) None of these

Discuss

Answer & Solution

Answer: Option C

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

For a GEO satellite, what is the free space loss (L_db) at the equator in terms of carrier wavelength (λ)?

A) 20log(λ) + 21.98 B) -20log(λ) + 173.07 C) 20log(λ) - 173.07 D) -20log(λ) + 21.98

Discuss

Answer & Solution

Answer: Option B

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

In a satellite ground station, the received signal is directly amplified in a low noise parametric amplifier followed by a FET amplifier. The gains and effective noise temperatures of the amplifiers are 20 dB, 9.0 K and 10 dB, 200 K respectively. The effective noise temperature of the combination is

A) 11.0 K B) 20 K C) 29.0 K D) 39 K

Discuss

Answer & Solution

Answer: Option A

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

Energy required for satellite is generally derived from

A) Solar cells and Nickel-cadmium cells B) Solar cells C) Nickel-Cadmium cells D) Nuclear generators

Discuss

Answer & Solution

Answer: Option B

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

The uplink and downlink frequencies are made different in satellite links in order to

A) reduce transmitter power B) increase the isolation between transmitter and receiver C) reduce antenna size D) increase bandwidth

Discuss

Answer & Solution

Answer: Option B

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

Linear velocity of a satellite equals
Where G(Gravity constant) = 6.67 × 10^-11m³/kg-sec, M = mass of earth, r = radius of circular orbit

A) $$\frac{{{\text{GM}}}}{{\text{r}}}{\text{m/s}}$$ B) $$\sqrt {\frac{{{\text{GM}}}}{{\text{r}}}} {\text{m/s}}$$ C) $$\frac{{\text{G}}}{{{\text{Mr}}}}{\text{m/s}}$$ D) $$\frac{{\sqrt {{\text{GM}}} }}{{\text{r}}}{\text{s/m}}$$

Discuss

Answer & Solution

Answer: Option B

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

For satellite communication, the frequency should be-

A) Less than the critical frequency of ionosphere B) equal to the critical frequency of ionosphere C) more than the critical frequency of ionosphere D) None of the above

Discuss

Answer & Solution

Answer: Option C

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

A highly inclined and highly eccentric orbit used by majority of communication satellites launched by Russia is also known as

A) Geosynchronous orbit B) Polar orbit C) Sun synchronous orbit D) Molniya orbit

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Answer & Solution

Answer: Option D

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

In . . . . . . . . switching a dedicated link/path is established across the sender and the receiver which is maintained for the entire duration of conversation?

A) Line B) Packet C) Frequency D) Circuit E) Message

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Answer & Solution

Answer: Option D

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

The orbital period of a satellite in circular orbit of radius R from the centre of the earth, is proportional to:

A) $${{\text{R}}^{\frac{1}{2}}}$$ B) $${{\text{R}}^{\frac{3}{2}}}$$ C) $${{\text{R}}^2}$$ D) $${\text{R}}$$

Discuss

Answer & Solution

Answer: Option B

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

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Satellite Communication MCQ Questions & Answers | ECE