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card_52415.txt
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Text File
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1991-04-08
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1KB
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42 lines
-- card: 52415 from stack: in
-- bmap block id: 0
-- flags: 4000
-- background id: 7720
-- name: #170
----- HyperTalk script -----
on openCard
global group,rightone
put 18 into group
put "C" into rightone
pass openCard
end openCard
-- part contents for background part 20
----- text -----
Question #18
-- part contents for background part 1
----- text -----
4BD-4.3 What is the "triangulation method" of direction finding?
-- part contents for background part 11
----- text -----
Using the geometric angle of ground waves and sky waves emanating from the same source to locate the signal source
-- part contents for background part 27
----- text -----
A fixed receiving station uses three beam headings to plot the signal source on a map
-- part contents for background part 28
----- text -----
Beam headings from several receiving locations are used to plot the signal source on a map
-- part contents for background part 29
----- text -----
The use of three vertical antennas to indicate the location of the signal source
-- part contents for background part 43
----- text -----
Correct answer is C