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card_94173.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: 94173 from stack: in
-- bmap block id: 0
-- flags: 4000
-- background id: 7720
-- name: #305
----- HyperTalk script -----
on openCard
global group,rightone
put 30 into group
put "D" into rightone
pass openCard
end openCard
-- part contents for background part 20
----- text -----
Question #30
-- part contents for background part 1
----- text -----
4BG-2B.1 What is the purpose of a "prescaler circuit"?
-- part contents for background part 11
----- text -----
It converts the output of a JK flip-flop to that of an RS flip-flop
-- part contents for background part 27
----- text -----
It multiplies an HF signal so a low-frequency counter can display the operating frequency
-- part contents for background part 28
----- text -----
It prevents oscillation in a low frequency counter circuit
-- part contents for background part 29
----- text -----
It divides an HF signal so a low-frequency counter can display the operating frequency
-- part contents for background part 43
----- text -----
Correct answer is D