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- -- 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
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- -- part contents for background part 20
- ----- text -----
- Question #27
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- -- part contents for background part 1
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- 4BF-3.1 What is a "phase-locked loop" circuit?
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- -- part contents for background part 11
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- An electronic servo loop consisting of a ratio detector, reactance modulator, and voltage-controlled oscillator
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- -- part contents for background part 27
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- An electronic circuit also known as a monostable multivibrator
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- -- part contents for background part 28
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- An electronic circuit consisting of a precision push-pull amplifier with a differential input
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- -- part contents for background part 29
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- An electronic servo loop consisting of a phase detector, a low-pass filter and voltage-controlled oscillator
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- -- part contents for background part 43
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- Correct answer is D