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card_82041.txt
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1991-04-08
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1KB
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42 lines
-- card: 82041 from stack: in
-- bmap block id: 0
-- flags: 4000
-- background id: 7720
-- name: #264
----- HyperTalk script -----
on openCard
global group,rightone
put 27 into group
put "D" into rightone
pass openCard
end openCard
-- part contents for background part 20
----- text -----
Question #27
-- part contents for background part 1
----- text -----
4BF-3.1 What is a "phase-locked loop" circuit?
-- part contents for background part 11
----- text -----
An electronic servo loop consisting of a ratio detector, reactance modulator, and voltage-controlled oscillator
-- part contents for background part 27
----- text -----
An electronic circuit also known as a monostable multivibrator
-- part contents for background part 28
----- text -----
An electronic circuit consisting of a precision push-pull amplifier with a differential input
-- part contents for background part 29
----- text -----
An electronic servo loop consisting of a phase detector, a low-pass filter and voltage-controlled oscillator
-- part contents for background part 43
----- text -----
Correct answer is D