Q.1
A satellite signal transmitted from a satellite transponder to earth’s station.
Q.2
A helical antenna is used for satellite tracking because of
Q.3
What band does VSAT first operate?
Q.4
VSAT was made available in
Q.5
A geosynchronous satellite
  • has the same period a that of the Earth
  • has a circular orbit
  • rotates in the equatorial plane
  • has all of the above
Q.6
INTELSAT stands for
  • Intel Satellite
  • International Telephone Satellite
  • International Telecommunications Satellite
  • International Satellite
Q.7
Repeaters inside communications satellites are known as
  • Trancievers
  • Transponders
  • Transducers
  • TWT
Q.8
A communication satellite is a repeater between
  • a transmitting station and a receiving station
  • a transmitting station and many receiving station
  • many transmitting station and many receiving station
  • none
Q.9
A transponder is a satellite equipment which
  • receives a signal from Earth station and amplifies
  • changes the frequency of the received signal
  • retransmits the received signal
  • does all of the above-mentioned functions
Q.10
A helical antenna is used for satellite tracking because of
  • Circular polarization
  • Maneuverability
  • Beamwidth
  • Gain
Q.11
Satellite engine uses
  • Jet propulsion
  • Ion propulsion system
  • Liquid fuel
  • Solar jet
Q.12
A geostationary satellite is one which
  • hangs motionless in space about 36000 km about Earth
  • travels around the Earth in 24 hours
  • remains stationary above the Earth
  • appears stationary to everybody on Earth
Q.13
What band does VSAT first operate?
  • L-band
  • X-band
  • C-band
  • Ku-band
Q.14
Orbital disturbances of a geosynchronous satellite are caused by the
  • moon
  • sun
  • earth
  • all of the above
Q.15
The first geostationary satellite launched inwas called
  • ANIK
  • EARLY BIRD (Intelsat-I)
  • WESTAR
  • MOLNIYA
Q.16
The angle subtended by earth at geostationary communication satellite is
  • 17.34°
  • 51.4°
  • 120°
  • 60°
Q.17
The number of days when Earth's shadow falls on a geosynchronous satellite is
  • 88
  • 277
  • 5
  • 10
Q.18
Radio broadcasting is a familiar example of
  • space multiplexing
  • time multiplexing
  • frequency multiplexing
  • none of the above
Q.19
VSAT was made available in
  • 1979
  • 1981
  • 1983
  • 1977
Q.20
Which of the following is the first commercial satellite?
  • Early Bird
  • Telstar
  • Explorer
  • Courier
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