Satellite Subsystems » Exercise – 1
1. Satellite engine use :
(a) liquid fuel
(b) jet propulsion
(c) ion propulsion system
(d) solar jet
2. ………. detects the satellite signal relayed from the feed and converts it to an electric current, amplifies and lower its frequency.
(a) feedhorn
(b) satellite dish
(c) satellite receiver
(d) LNB
3. A helical antenna is used for satellite tracking because of …………. ?
(a) broad bandwidth
(b) good front-to-back
(c) maneuverability
(d) circular polarization
4. What kind of battery panels are used in some advance satellites ?
(a) gallium arsenide solar panel
(b) germanium based panels
(c) silicon based panels
(d) gallium phosphate solar panel
5. Passive reflectors are provided on :
(a) Active satellites only
(b) Passive satellites only
(c) Both a and b above
(d) None of the above
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