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Free download in PDF Satellite Communication General Knowledge Multiple Choice Questions(MCQs) & Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These general awareness questions or quizzes are provided by Gkseries.
(1)
The earth area covered by a satellite radio beam.
[A]
Beamwidth
[B]
Bandwidth
[C]
Footprint
[D]
Zone
(2)
Point on the satellite obits closest to the earth.
[A]
Apogee
[B]
Perigee
[C]
Prograde
[D]
Zenith
(3)
What height must a satellite be placed above the surface of the earth in order for its rotation to be equal to earth’s rotation?
[A]
26,426.4 miles
[B]
27,426.4 miles
[C]
23,426.4 miles
[D]
22,426.4 miles
(4)
Is a loss of power of a satellite downlink signal due to earth’s atmosphere.
[A]
Atmospheric loss
[B]
Path loss
[C]
Radiation loss
[D]
RFI
(5)
_________ detects the satellite signal relayed from the feed and converts it to an electric current, amplifies and lower its frequency.
[A]
Horn antenna
[B]
LNA
[C]
Satellite receiver
[D]
Satellite dish
Answer: Satellite receiver
(6)
What is a device that detects both vertically and horizontally polarized signals simultaneously?
[A]
Orthomode transducer
[B]
Crystal detector
[C]
Optoisolator
[D]
Isomode detector
Answer: Orthomode transducer
(7)
Collects very weak signals from a broadcast satellite
[A]
Helical antenna
[B]
Satellite dish
[C]
LNA
[D]
TWT
(8)
A satellite signal transmitted from a satellite transponder to earth’s station.
[A]
Uplink
[B]
Downlink
[C]
Terrestrial
[D]
Earthbound
(9)
What is the frequency range of C-band?
[A]
8.5 to 12.5 GHz
[B]
3.4 to 6.425 GHz
[C]
12.95 to 14.95 GHz
[D]
27.5 to 31 GHz
(10)
A satellite beam that covers almost 42.4% of the earths surface.
[A]
Zone beam
[B]
Hemispheric beam
[C]
Spot beam
[D]
Global beam
(11)
The smallest beam of a satellite antenna radiation pattern
[A]
Zone beam
[B]
Hemispheric beam
[C]
Spot beam
[D]
Global beam
(12)
Is the geographical representation of a satellite antenna radiation pattern
[A]
Footprint
[B]
Spot
[C]
Earth
[D]
Region
(13)
___________ is a satellite that rotates around the earth in a low-altitude elliptical or circular pattern.
[A]
Geosynchronous satellite
[B]
Nonsynchronous satellite
[C]
Prograde satellite
[D]
Retrograde satellite
Answer: Nonsynchronous satellite
(14)
Considered as the unsolved problem in satellite system
[A]
Coverage
[B]
Cost
[C]
Access
[D]
Privacy
(15)
Repeaters inside communications satellites are known as
[A]
Trancievers
[B]
Transponders
[C]
Transducers
[D]
TWT
(16)
A helical antenna is used for satellite tracking because of
[A]
circular polarization
[B]
maneuverability
[C]
beamwidth
[D]
gain
Answer: circular polarization
(17)
The first satellite to receive and transmit simultaneously
[A]
Intelsat I
[B]
Agila I
[C]
Syncorn I
[D]
Telstar I
(18)
What is the first passive satellite transponder?
[A]
Sun
[B]
Early Bird
[C]
Score
[D]
Moon
(19)
Which of the following is the first commercial satellite?
[A]
Early Bird
[B]
Telstar
[C]
Explorer
[D]
Courier
(20)
Which of the following is the first active satellite?
[A]
Echo I
[B]
Telstar I
[C]
Early Bird
[D]
Sputnik I
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