ATT TEST 3 EXAM NEWEST 2025 ACTUAL EXAM
COMPLETE 90 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
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What are harmonic frequencies? - ANSWER-echoes of the
fundamental frequency, creates non-sinusoidal waves when
combined with fundamental frequency
How are harmonic frequencies calculated? - ANSWER-
determined by multiplying fundamental frequency by harmonic
number
What do oscilloscopes directly measure? - ANSWER-
Amplitude, period, waveshape
Most oscilloscopes directly measure what type of voltage? -
ANSWER-Peak to peak
Multimeters measure what type of voltage? - ANSWER-RMS
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Bandwidth is the highest _____ an oscilloscope can measure? -
ANSWER-Frequency
What is the point of probe compensation? - ANSWER-
eliminates distortion of input signal
What type of square wave should be produced when doing probe
compensation? - ANSWER-5 VPP 1kHZ
What does a function generator do? - ANSWER-Provides a
known input signal so tech can test a circuit
What does DC offset do? - ANSWER-Adds DC voltage to AC
waveform
What does the range control do (function generator)? -
ANSWER-Sets coarse frequency
What are four functions of frequency counter? - ANSWER-
Frequency, period, totalize, check