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Satellite Subsystems – 1 – 4

16. A satellite link can be made to carry information when operating digitally than in analog fashion :

(a) Less
(b) More
(c) Either of the above
(d) None of the above

ANSWER

EXPLANATION

17. ARQ in the context of error detection in satellite transmission stands for which of the following ?

(a) Automatic radiation quenching
(b) Automatic repeat request
(c) Automatic relay request
(d) Accelerated recovery request

ANSWER

EXPLANATION

18. To telecast programmes directly to TV receivers, the additional circuit required with the receiver is …… converter.

(a) Frequency
(b) Modulation
(c) Front-end
(d) All of the above

ANSWER

EXPLANATION

19. For a satellite the primary source of power is :

(a) Load batteries
(b) Inverters
(c) Solar cells
(d) Nickel cadmium cells

ANSWER

EXPLANATION

20. Which of the following is common between earth and a geostationary satellite :

(a) Same acceleration
(b) Same velocity
(c) Same angular velocity
(d) Same gravitational force

ANSWER

EXPLANATION

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