E8A01

What type of wave is made up of a sine wave plus all of its odd harmonics?

  1. A square wave

E8A02

What type of wave has a rise time significantly faster than its fall time (or vice versa)?

  1. A sawtooth wave

E8A03

What type of wave is made up of sine waves of a given fundamental frequency plus all its harmonics?

  1. A sawtooth wave

E8A04

What is the equivalent to the root-mean-square value of an AC voltage?

  1. The DC voltage causing the same amount of heating in a resistor as the corresponding RMS AC voltage

E8A05

What would be the most accurate way of measuring the RMS voltage of a complex waveform?

  1. By measuring the heating effect in a known resistor

E8A06

What is the approximate ratio of PEP-to-average power in a typical voice-modulated single-sideband phone signal?

  1. 2.5 to 1

E8A07

What determines the PEP-to-average power ratio of a single-sideband phone signal?

  1. The characteristics of the modulating signal

E8A08

What is the period of a wave?

  1. The time required to complete one cycle

E8A09

What type of waveform is produced by human speech?

  1. Irregular

E8A10

Which of the following is a distinguishing characteristic of a pulse waveform?

  1. Narrow bursts of energy separated by periods of no signal

E8A11

What is one use for a pulse modulated signal?

  1. Digital data transmission

E8A12

What type of information can be conveyed using digital waveforms?

  1. A. Human speech
  2. B. Video signals
  3. C. Data
  4. D. All of these answers are correct

E8A13

What is an advantage of using digital signals instead of analog signals to convey the same information?

  1. Digital signals can be regenerated multiple times without error

E8A14

Which of these methods is commonly used to convert analog signals to digital signals?

  1. Sequential sampling

E8A15

What would the waveform of a digital data stream signal look like on a conventional oscilloscope?

  1. A series of pulses with varying patterns

 

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