ATT TEST 3 2025 UPDATED ACTUAL EXAM WITH CORRECT SOLUTIONS.
What is the frequency of a wave? - (answer)number of cycles per second
What is frequency measured in? - (answer)Hertz
3 cycles per second equals how many hertz? - (answer)3 Hz
What is the period of a wave? - (answer)Time per cycle
What is wavelength? - (answer)the actual distance between beginning and end of one cycle
(meters/centimeters)
What is induction? - (answer)generation of AC current by changing a magnetic field (flux variation)
Flux variation is (directly/indirectly) proportional to induction and current? - (answer)directly
What is needed to induce current? - (answer)conductor, magnetic field, relative motion
What is peak voltage? - (answer)highest positive or negative voltage obtained
What is peak to peak voltage? - (answer)determined by doubling peak voltage, from highest positive
point to lowest negative point
What is average voltage? - (answer)Calculated using sum of all angles contained in 180 degrees (0.637 X
peak V)
What is RMS voltage? - (answer)most common method to describe voltage of sine wave (0.707 X peak
V)
120 VAC RMS = How much VDC? - (answer)120 VDC
, ATT TEST 3 2025 UPDATED ACTUAL EXAM WITH CORRECT SOLUTIONS.
What is phase angle? - (answer)amount by which waveforms lead or lag one another
What phase angle has peaks of OPPOSITE POLARITY happening at the same time? - (answer)180 degrees
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
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 is the frequency of a wave? - (answer)number of cycles per second
What is frequency measured in? - (answer)Hertz
3 cycles per second equals how many hertz? - (answer)3 Hz
What is the period of a wave? - (answer)Time per cycle
What is wavelength? - (answer)the actual distance between beginning and end of one cycle
(meters/centimeters)
What is induction? - (answer)generation of AC current by changing a magnetic field (flux variation)
Flux variation is (directly/indirectly) proportional to induction and current? - (answer)directly
What is needed to induce current? - (answer)conductor, magnetic field, relative motion
What is peak voltage? - (answer)highest positive or negative voltage obtained
What is peak to peak voltage? - (answer)determined by doubling peak voltage, from highest positive
point to lowest negative point
What is average voltage? - (answer)Calculated using sum of all angles contained in 180 degrees (0.637 X
peak V)
What is RMS voltage? - (answer)most common method to describe voltage of sine wave (0.707 X peak
V)
120 VAC RMS = How much VDC? - (answer)120 VDC
, ATT TEST 3 2025 UPDATED ACTUAL EXAM WITH CORRECT SOLUTIONS.
What is phase angle? - (answer)amount by which waveforms lead or lag one another
What phase angle has peaks of OPPOSITE POLARITY happening at the same time? - (answer)180 degrees
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
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
